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[A case of Crow-Fukase syndrome which developed seven years following myelopathy of unknown origin].

A rare case of Crow-Fukase syndrome was reported, which developed 7 years following myelopathy of unknown origin. In September 1983, a 31-year-old man came to our department for progressive gait disturbance and numbness in both lower extremities. Examination on admission showed hyperreflexia with clonus and moderated muscle weakness of legs, and paresthesia below Th9 level, but myelography and CT indicated no abnormality. Thereafter, he was doing as well as walkable with a cane, but in 1989 he developed hypertrichosis, skin pigmentation, leg edema and gynecomastia with aggravation of numbness of lower extremity and was rehospitalized in October. Detailed examination on the present admission indicated compression of the conus medullaris due to an osteosclerotic lesion of vertebral body L1, which did not correspond to the possible site of pyramidal sign. Thus, the origin of the myelopathy remained unknown. After hospitalization, polyneuropathy newly developed, making him confined to his bed. Thus, the diagnosis was established as Crow-Fukase syndrome. Subtotal extirpation of L1 vertebral body and steroid therapy (PSL 10 mg/day) caused improvements of polyneuropathy and numbness of lower extremity, making him walkable again and return to his social work 3 months later. Pathohistological examination of the osteosclerotic lesion proved partial plasmacytoma. In MRI findings of the osteosclerotic lesion, the osteosclerotic and plasmacytomatous regions were outlined as low and high signals, respectively for both T1 and T2-weighted. MRI examination was very useful for grasping the tumorous extent within the osteosclerotic lesion as observed with Crow-Fukase syndrome and for determining the extent of indication for surgery and radiotherapy.

Adult↗

Intralesional steroid injection after nerve block anesthesia in the treatment of orofacial granulomatosis.

BACKGROUND: The facial disfigurement produced by orofacial granulomatosis causes enormous embarrassment. None of the many therapies recommended is reliably successful. Oral corticosteroids cause significant side effects and repeated injections of small quantities of triamcinolone are painful. We have injected large volumes of triamcinolone after numbing the lips using nerve block anesthesia. OBSERVATIONS: Nine patients (six males and three females, aged 10 to 47 years) with orofacial granulomatosis were investigated. No evidence of an allergic cause was found using patch or contact urticaria tests. Eating chocolate produced lip swelling in one man, and his lip shrank in size after avoiding this for 12 months. Five patients, aged 10 to 24 years, were treated with high-volume intralesional triamcinolone injections (3 to 10 mL of 10 mg/mL) after first numbing the lips using infraorbital nerve branch and mental nerve block. After 6 weeks, the lip size returned to normal in four patients and was reduced in a fifth. One patient was injected on four occasions over a 2-year period; in four other patients treated once, lip size remained reduced for over 10 months. CONCLUSION: Intralesional triamcinolone reduces lip swelling in patients with orofacial granulomatosis. Numbing the lips by nerve block anesthesia before triamcinolone injection enables adequate volumes and repeated injections to be given painlessly.

Adolescent↗

Usefulness and reliability of neurological signs for level diagnosis in cervical myelopathy caused by soft disc herniation.

We retrospectively analyzed neurological signs of 106 patients with cervical myelopathy caused by single-level soft disc herniation. Neurological signs that were intensively analyzed were deep tendon reflexes, the uppermost level of impaired pinprick sensation, the uppermost weak muscle, and region of numbness in the hands. Characteristic signs for each intervertebral level were deduced, and sensitivity, specificity, and accuracy of these signs were calculated. Deep tendon reflexes were specific signs for each intervertebral level, although not as sensitive as the neurological signs. Muscle weakness and pinprick sensation were neither sensitive nor specific. Hand numbness was moderately sensitive and specific. On the whole, there was no neurological sign that was both highly sensitive and specific for an intervertebral level, and therefore, neurological level diagnosis in cervical myelopathy should be performed comprehensively according to more specific signs, i.e., deep tendon reflexes and hand numbness.

Adult↗

[A case of cystic hemangioblastoma of the medulla oblongata].

Cystic hemangioblastoma of the brain stem is an extremely rare clinical entity. Only eight cases have been reported in the literature. This is a report of a case of successful extirpation of a cystic hemangioblastoma of the medulla oblongata. A 47-year-old man was admitted to our clinic with the complaint of progressive numbness on his left upper limb since January 1995. Neurological examination revealed numbness and decreased vibration sensation on his left upper limb. MRI showed a cystic 1.5 x 2.0 cm lesion on the medulla oblongata, and with administration of Gd-DTPA, a small mass lesion on the dorsolateral side of the medulla oblongata. Left vertebral angiogram revealed a tumor fed directly from the left vertebral artery. An operation was performed using a suboccipital approach. The dorsal surface of the medulla was swollen edematously, suggesting the site of a cyst, which emptied by means of opening the wall. The reddish tumor was embedded on the left dorsolateral surface of the medulla oblongate. A total extirpation of the tumor was carried out under microscopic procedure. Histologically, the tumor was diagnosed as a hemangioblastoma. The patient was free from his distressing numbness immediately after the operation, and discharged without neurological deficit.

Brain Neoplasms↗

Vibration syndrome in railway track maintenance workers.

An inquiry was sent to all railway maintenance workers in three railway districts in Finland and hand-arm vibration was measured on the handlebars of tools used by maintenance workers. The study group included 252 (82%) subjects, whose mean age was 41 years and who had worked in track maintenance for 14 years (SD 9). In Finland there are over 600 railway maintenance workers who use vibrating tools. The frequency-weighted acceleration of hand-arm vibration was calculated according to the ISO 5349 standard. Hand-held tamping machines had caused most of the vibration exposure, and aw4h was 10.6 m/s2 measured on the handlebar of tamping machine, but many workers also used other vibrating tools. The annual vibration level was 2.5 m/s2 when the use of all vibrating tools and the exposure time was taken into account. In the questionnaire the prevalence of vibration-induced white finger (VWF) was 14% in the entire material, and the prevalence of VWF increased significantly with the total duration of the maintenance work. In addition, 39% of the subjects had suffered numbness of the hands, and the prevalence of hand numbness also increased significantly with the total duration of maintenance work. According to the measurements of vibration and the prevalence of hand symptoms the present investigation indicates vibration syndrome as being related to railway track maintenance work. In the exposure group, where tamping machines mainly were used and exposure to other vibration was small, the prevalence of VWF was also significantly higher, but the prevalence of hand numbness insignificant compared with the control group. In this study vascular and nerve hand symptoms were considered to cause serious trouble in work by 4-11% of the maintenance workers.

Adult↗

[Mandibular neuropathy due to infiltration of the Gasser ganglion].

INTRODUCTION: The numb chin syndrome is characterized by oral and facial numbness restricted to the distribution of the mental nerve. This uncommon neuropathy has been described in association with a number conditions including malignant disease even in the patients no known to have cancer. Numb chin syndrome may be caused by metastatic involvement of the mental nerve, by involvement of the proximal mandibular root at the base of the skull or by intracranial leptomeningeal spread. CLINICAL CASE/DISCUSSION: We described a case of neuropathy of the chin as the initial symptom of the breast cancer. We suggested that the lesion was in the trigeminal ganglion based on enlargement and gadolinium enhancement of the trigeminal ganglia on MRI. A mental neuropathy should initiate a search for cancer that includes MRI of the head.

Breast Neoplasms↗

On the roles of inscuteable in asymmetric cell divisions in Drosophila.

Three processes requiring insc, protein localization, RNA localization, and mitotic spindle orientation, appear to be tightly correlated but nevertheless independent. The apical cortical localization of Insc protein occurs prior to mitosis and precedes the basal localization of Pros, Numb, and pros RNA. In insc null mutants, neuroblasts divide in more random orientations and fail to correctly localize Pros, Numb, and pros RNA to their correct position during mitosis. Our results suggest that asymmetric localization of Insc during interphase functions to establish positional information for spindle orientation and the basal localization of Numb, Pros, and pros RNA during mitosis. Insc probably interacts with a number of interacting partners in order to effect its various functions. One of its partners, Stau, is involved exclusively in the process of RNA localization.

Amino Acid Sequence↗

Chronic cryptogenic sensory polyneuropathy: clinical and laboratory characteristics.

BACKGROUND: Chronic sensory-predominant polyneuropathy (PN) is a common clinical problem confronting neurologists. Even with modern diagnostic approaches, many of these PNs remain unclassified. OBJECTIVE: To better define the clinical and laboratory characteristics of a large group of patients with cryptogenic sensory polyneuropathy (CSPN) evaluated in 2 university-based neuromuscular clinics. DESIGN: Medical record review of patients evaluated for PN during a 2-year period. We defined CSPN on the basis of pain, numbness, and tingling in the distal extremities without symptoms of weakness. Sensory symptoms and signs had to evolve for at least 3 months in a roughly symmetrical pattern. Identifiable causes of PN were excluded by history, physical examination findings, and results of laboratory studies. We analyzed clinical and laboratory data from patients with CSPN and compared findings in patients with and without pain. RESULTS: Of 402 patients with PN, 93 (23.1%) had CSPN and stable to slowly progressive PN syndrome. These patients presented with a mean age of 63.2 years and a mean duration of symptoms of 62.9 months. Symptoms almost always started in the feet and included distal numbness or tingling in 86% of patients and pain in 72% of patients. Despite the absence of motor symptoms at presentation, results of motor nerve conduction studies were abnormal in 60% of patients, and electromyographic evidence of denervation was observed in 70% of patients. Results of laboratory studies were consistent with axonal degeneration. Patients with and without pain were similar regarding physical findings and laboratory test abnormalities. Only a few patients (<5%) had no evidence of large-fiber dysfunction on physical examination or electrophysiologic studies. All 66 patients who had follow-up examinations (mean, 12.5 months) remained ambulatory. CONCLUSIONS: Cryptogenic sensory polyneuropathy is a common, slowly progressive neuropathy that begins in late adulthood and causes limited motor impairment. Isolated small-fiber involvement is uncommon in this group of patients. Management should focus on rational pharmacotherapy of neuropathic pain combined with reassurance of CSPN's benign clinical course.

Adult↗

Small-fiber neuropathy/neuronopathy associated with celiac disease: skin biopsy findings.

BACKGROUND: Celiac disease (CD) is increasingly recognized in North America and is associated with a peripheral neuropathy. OBJECTIVE: To report the clinical characteristics and skin biopsy results in patients with CD and small-fiber neuropathy symptoms. DESIGN: Case series. SETTING: Academic peripheral neuropathy clinic. PATIENTS: Eight patients with CD and neuropathy symptoms. Intervention Three-millimeter punch biopsy using the panaxonal marker protein gene product 9.5 to assess epidermal nerve fiber (ENF) density and a gluten-free diet. MAIN OUTCOME MEASURE: Clinical data and ENF density. RESULTS: All patients had asymmetric numbness and paresthesias. Three had more prominent involvement of hands than feet, and 3 had facial numbness. Celiac disease was diagnosed in 5 after their neuropathy began. The following serum antibody levels were elevated: tissue transglutaminase (n = 6), IgA gliadin (n = 4), and IgG gliadin (n = 7). Results of nerve conduction studies were normal in 7 patients. One patient had mildly reduced sural amplitudes. The ENF density was reduced in 5 patients. The ENF density was at the low limit of the normal range in 3 additional patients, 2 of whom had morphologic changes in axons. Three patients had decreased ENF density at the thigh or forearm, which was more severe than at the distal leg, compatible with a non-length-dependent process. Four reported improvement with a gluten-free diet. One had no improvement after 4 months. Symptoms developed in 2 while receiving a gluten-free diet. CONCLUSIONS: Patients with CD may have a neuropathy involving small fibers, demonstrated by results of skin biopsy. The pattern of symptoms, with frequent facial involvement and a non-length-dependent pattern on skin biopsy findings, suggests a sensory ganglionopathy or an immune-mediated neuropathy. Improvement of symptoms in some patients after initiating a gluten-free diet warrants further study.

Celiac Disease↗

Computer use and carpal tunnel syndrome: a 1-year follow-up study.

CONTEXT: Computer use is increasingly common among many working populations, and concern exists about possible adverse effects of computer use, such as carpal tunnel syndrome (CTS). OBJECTIVES: To estimate the prevalence and incidence of possible CTS and to evaluate the contribution of use of mouse devices and keyboards to the risk of possible CTS. DESIGN AND SETTING: A 1-year follow-up study with questionnaires conducted in 2000 and 2001 at 3500 workplaces in Denmark, followed on each of the 2 occasions by a clinical interview on symptom distribution and frequency. PARTICIPANTS: The questionnaire was sent to 9480 members of a trade union, with an initial response rate of 73% (n = 6943), and 82% (n = 5658) at follow-up. MAIN OUTCOME MEASURES: At baseline, there were 3 outcome measures: tingling/numbness in the right hand once a week or more as reported in the questionnaire; tingling, numbness, and pain in the median nerve in the right hand confirmed by clinical interview; and tingling, numbness, and pain in the median nerve in the right hand at night confirmed by clinical interview. At 1 year of follow-up the main outcome of interest was onset of symptoms among participants who had no or minor symptoms at baseline. RESULTS: The overall self-reported prevalence of tingling/numbness in the right hand at baseline was 10.9%. The interview confirmed that prevalence of tingling/numbness in the median nerve was 4.8%, of which about one third, corresponding to a prevalence of 1.4%, experienced symptoms at night. Onset of new symptoms in the 1-year follow-up was 5.5%. In the cross-sectional comparisons and in the follow-up analyses, there was an association between use of a mouse device for more than 20 h/wk and risk of possible CTS but no statistically significant association with keyboard use. CONCLUSIONS: The occurrence of possible CTS in the right hand was low. The study emphasizes that computer use does not pose a severe occupational hazard for developing symptoms of CTS.

Adult↗

Morbidity following sentinel lymph node biopsy versus axillary lymph node dissection for patients with breast carcinoma.

BACKGROUND: Axillary lymph node dissection for staging the axilla in breast carcinoma patients is associated with considerable morbidity, such as edema of the arm, pain, sensory disturbances, impairment of arm mobility, and shoulder stiffness. Sentinel lymph node biopsy electively removes the first lymph node, which gets the drainage from the tumor and should therefore be associated with nearly zero morbidity. METHODS: Postoperative morbidity (increase in arm circumference, subjective lymphedema, pain, numbness, effect on arm strength and mobility, and stiffness) of the operated arm was prospectively compared in 35 breast carcinoma patients after axillary lymph node dissection (ALND) of Level I and II and 35 patients following sentinel lymph node (SN) biopsy. RESULTS: Patient characteristics were comparable between the two groups. Postoperative follow-up was 15.4 months (range, 4-28 months) in the SN group and 17.0 months (range, 4-28 months) in the ALND group. Following axillary dissection, patients showed a significant increase in upper and forearm circumference of the operated arm compared with the SN patients, as well as a significantly higher rate of subjective lymphedema, pain, numbness, and motion restriction. No difference between the two groups was found regarding arm stiffness or arm strength, nor did the type of surgery affect daily living. CONCLUSIONS: SN biopsy is associated with negligible morbidity compared with complete axillary lymph node dissection.

Activities of Daily Living↗

Median mononeuropathy among active workers: are there differences between symptomatic and asymptomatic workers?

The objective was to determine whether symptomatic workers with an abnormal sensory nerve conduction study consistent with carpal tunnel syndrome differed, in terms of electrophysiologic measures, psychosocial, demographic, anthropometric, or ergonomic variables, from workers with an asymptomatic median mononeuropathy. This was a cross-sectional study of active workers at six different work sites. Cases were defined as workers with electrodiagnostic findings of a median mononeuropathy in either hand, based on a 0.5-msec prolongation of the median sensory evoked peak latency compared to the ulnar latency. This group was stratified on the basis of symptoms of numbness, tingling, burning or pain in the hand. The two groups were compared in terms of demographic, anthropomorphic, psychosocial, electrophysiologic, and ergonomic risk factors. Active workers from six different sites were tested; five sites involved manufacturing workers, and one site represented clerical workers. One hundred eighty-four active workers with a median mononeuropathy were documented on nerve conduction studies. These workers represented a subset of more than 700 workers screened at six different locations. The main outcome measure was the patient's report of symptoms of pain, numbness, tingling or burning in the hand or fingers that lasted more than 1 week or occurred three or more times at the initial screening. Workers with a median mononeuropathy who complained of hand symptoms were more likely to be female, to have jobs with higher hand repetition levels, to have higher ratings of job security, not to have a history of diabetes, to use more force in their job with more abnormal postures of their wrist and fingers, and to have a trend toward a more prolonged median sensory distal latency. Most logistic regression models explained less than 15% of the variance (pseudo R2). Women with jobs that have higher ergonomic risks and no history of diabetes were more likely to have reported symptoms associated with carpal tunnel syndrome compared to other workers with a documented median mononeuropathy. Psychosocial variables were not particularly discriminatory. None of the models allows enough precision to predict on an individual basis.

Adult↗

Upper extremity nerve involvement in Swedish female machine milkers.

Entrapment of the median nerve in the proximal forearm, the so-called pronator syndrome, is considered a rather rare condition but it is four times more common in women than in men. In this study, 23 of 30 female machine milkers with symptoms in the forearm and hand were clinically diagnosed as having the pronator syndrome. The diagnosis of median nerve involvement was based on the clinical history and on physical examination by a hand surgeon. All 23 milkers complained of aching in the volar part of the forearm and had a sensation of numbness, tingling, and decreased muscle strength in their hands, mostly in the hands which usually were statically loaded with heavy equipment. Objectively, all had an experience of tenderness over the pronator teres muscle. Furthermore, they showed reduced muscle strength, especially in the following muscles: pronator teres (PT), flexor carpi radialis (FCR), flexor pollicis longus (FPL), and flexor digitorum profundus II (FDP II). To validate the manual muscle testing, Mannerfeldt's intrinsicmeter was used to quantify the clinically observed weakness. Eight of the 23 milkers with pronator syndrome were surgically released from neuropathy and were almost symptom-free at follow-up after six months. One patient had a slight sensation of numbness and had to be given surgical carpal tunnel release later on. The external exposure of the arm during the application of the milking cluster probably causes muscle and fascial tensions that induce compression of the nerve. Further studies are needed to establish the level of the internal exposure.

Adult↗

Jaw involvement in American Burkitt's Lymphoma.

A total of 100 patients with American Burkitt's lymphoma (AMBL) (mean age, 15 years; M:F ratio 3:1; 3% black) have been treated at the National Cancer Institute since 1964. Eighteen of these had jaw involvement, 16 at presentation and 2 at relapse (mean age, 16 years; M:F ratio 1.6:1). None of these 18 patients was black. Of the 16 patients presenting initially with jaw tumors, 14 were first evaluated by their dentist; 8 were 16 years of age or older (adults) and 6 were younger than 16 years of age (children). Toothache and perioral numbness were the most frequent findings in adults, whereas toothache, loose teeth, intra-oral and extra-oral swelling were the most common complaints in children. Ten patients were treated with antibiotic therapy and/or dental extractions for presumed tooth infection. The distribution of jaw lesions was: unilateral mandibular (7), unilateral maxillary (4), bilateral mandibular (5), and four quadrants (2). Radiologic evaluation was abnormal in all 17 cases evaluated. Only three patients (all children) had disease limited to the jaw. Four of eight children and 3 of 10 adults are long-term survivors with a median follow-up of seven years (range, 2-15 years). American Burkitt's lymphoma with jaw involvement differs from African Burkitt's lymphoma (AFBL) with jaw involvement in a number of ways: (1) the incidence of jaw tumors in adults is similar to that in children; (2) the incidence of jaw tumors is not greater in males; (3) tumor is considerably more limited in extent with a single quadrant mandibular lesion being the most common presentation; and (4) clinical presentation also differs, with toothache and perioral numbness, uncommon in AFBL, being the most frequent complaints. These marked differences in the frequency and clinical characteristics of jaw tumor of AMBL and AFBL are consistent with other findings indicating that these diseases may differ phenotypically.

Adolescent↗

Surgical versus non-surgical treatment for carpal tunnel syndrome.

BACKGROUND: Carpal tunnel syndrome is the clinical condition resulting from the entrapment of the median nerve in the wrist. It has been accepted as the most frequent entrapment neuropathy. The most common symptoms are tingling, numbness, and pain in the hand that may radiate to the forearm or shoulder. There may be weakness and atrophy of the thenar muscles associated with sensory loss in the affected fingers. There is no universally accepted therapy for carpal tunnel syndrome. Surgical treatment is widely preferred to non-surgical or conservative therapies for overtly symptomatic patients, while mild cases are usually not treated. OBJECTIVES: The objective of this review is to compare the efficacy of surgical treatment of carpal tunnel syndrome with non-surgical treatment in improving clinical outcome. SEARCH STRATEGY: We searched the Cochrane Neuromuscular Disease Group register for randomised or quasi-randomised trials as well as MEDLINE, EMBASE and LILACS (to July 2001). We checked the bibliographies in relevant papers and contacted the authors to obtain information about other published or unpublished studies. SELECTION CRITERIA: All randomised and quasi-randomised controlled trials comparing any surgical and any non-surgical therapies. DATA COLLECTION AND ANALYSIS: Two reviewers independently assessed eligibility of the trials. MAIN RESULTS: Only one randomised controlled trial was found. It included 22 female patients, 11 allocated to surgical section of the anterior carpal ligament and 11 to splinting for one month. The trial was not blinded and it is not clear if the allocation was properly concealed. Data reported allowed an intention-to-treat analysis on two secondary outcomes. The results favour surgery for both of them. There was a significant clinical improvement at one year follow-up in 10 out of 11 patients allocated to surgery and two out of 11 allocated to splinting (relative risk 5.00, 95% confidence interval 1.41, 17.76). Eight out of 11 patients allocated to splinting required surgery during follow-up, compared with apparently no re operation in the surgical group (relative risk 0.06, 95% confidence interval 0.00, 0.91). REVIEWER'S CONCLUSIONS: Surgical treatment of carpal tunnel syndrome seems to be better than splinting. There is a need for randomised controlled trials comparing surgical and non-surgical therapies for carpal tunnel syndrome, particularly in patients with mild symptoms in whom there is greater uncertainty concerning the balance of risks versus benefit of surgical therapy.

Carpal Tunnel Syndrome↗

Laparoscopic techniques versus open techniques for inguinal hernia repair.

BACKGROUND: Inguinal hernia repair is the most frequently performed operation in general surgery. The standard method for inguinal hernia repair had changed little over a hundred years until the introduction of synthetic mesh. This mesh can be placed by either using an open approach or by using a minimal access laparoscopic technique. Although many studies have explored the relative merits and potential risks of laparoscopic surgery for the repair of inguinal hernia, most individual trials have been too small to show clear benefits of one type of surgical repair over another. OBJECTIVES: The objective of this review was to compare minimal access laparoscopic mesh techniques with open techniques. Comparisons of open mesh techniques versus open non-mesh techniques have been considered in a separate Cochrane review. SEARCH STRATEGY: We searched MEDLINE, EMBASE, and The Cochrane Central Controlled Trials Registry for relevant randomised controlled trials. The reference list of identified trials, journal supplements, relevant book chapters and conference proceedings were searched for further relevant trials. Through the EU Hernia Trialists Collaboration (EUHTC) communication took place with authors of identified randomised controlled trials to ask for information on any other recent and ongoing trials known to them. Specialists involved in research on the repair of inguinal hernia were contacted to ask for information about any further completed and ongoing trials. The world wide web was also searched. SELECTION CRITERIA: All published and unpublished randomised controlled trials and quasi-randomised controlled trials comparing laparoscopic groin hernia repair with open groin hernia repair were eligible for inclusion. Trials were included irrespective of the language in which they were reported. DATA COLLECTION AND ANALYSIS: Individual patient data were obtained, where possible, from the responsible trialist for all eligible studies. All reanalyses were cross-checked by the reviewers and verified by the trialists before inclusion. Where IPD were unavailable additional aggregate data were sought from trialists and published aggregate data checked and verified by the trialists. IPD were available for 25 trials, additional aggregated data for seven and published data only for nine. Where possible, time to event analysis for hernia recurrence and return to usual activities were performed on an intention to treat principle. The main analyses were based on all trials. Sensitivity analyses based on the data source and trial quality were also performed. Pre-defined subgroup analyses based on recurrent hernias, bilateral hernias and femoral hernias were also carried out. MAIN RESULTS: 41 published reports of eligible trials were included involving 7161 participants. Sample sizes ranged from 38 to 994, with follow-up from 6 weeks to 36 months. Duration of operation was longer in the laparoscopic groups (WMD 14.81 minutes, 95% CI 13.98 to 15.64; p<0001). Operative complications were uncommon for both methods but more frequent in the laparoscopic group for visceral (Overall 8/2315 versus 1/2599) and vascular (Overall 7/2498 versus 5/2758) injuries. Length of hospital stay did not differ between groups (WMD -0.04 days, 95% CI -0.08 to 0.00; p=0.05, but return to usual activity was earlier for laparoscopic groups (HR 0.56, 95%CI 0.51 to 0.61; p<0.0001 - equivalent to 7 days). The data available showed less persisting pain (Overall 290/2101 versus 459/2399; Peto OR 0.54, 95% CI 0.46 to 0.64; p<0.0001), and less persisting numbness (Overall 102/1419 versus 217/1624; Peto OR 0.38, 95% CI 0.4286 to 0.49; p<0.0001) in the laparoscopic groups. In total, 86 recurrences were reported amongst 3138 allocated laparoscopic repair and 109 amongst 3504 allocated to open repair (Peto OR 0.81, 95% CI 0.61 to 1.08; p = 0.16). The use of mesh during laparoscopic hernia repair is associated with a reduction in the risk of hernia recurrence, significantly so for the transabdominal preperitoneal repair (TAPP) versus open non-mesh repair (overall 26/1440 versus preperitoneal repair (TAPP) versus open non-mesh repair (overall 26/1440 versus 47/1119; Peto OR 0.45, 95% CI 0.28 to 0.72; p=0.0009). However, no difference was detected when comparing laparoscopic methods with open mesh methods of hernia repair. REVIEWER'S CONCLUSIONS: The use of mesh during laparoscopic hernia repair is associated with a relative reduction in the risk of hernia recurrence of around 30-50%. However, there is no apparent difference in recurrence between laparoscopic and open mesh methods of hernia repair. The data suggests less persisting pain and numbness following laparoscopic repair. Return to usual activities is faster. However, operation times are longer and there appears to be a higher risk of serious complication rate in respect of visceral (especially bladder) and vascular injuries.

Hernia, Inguinal↗

VDT-related musculoskeletal symptoms: interactions between work posture and psychosocial work factors.

Video display terminal (VDT) operators (n = 150) in the editorial department of a large metropolitan newspaper participated in a study of day-to-day musculoskeletal symptoms. Work posture related to the VDT workstation and psychosocial work factors were also investigated for their contributions to the severity of upper body pain, numbness, and stiffness using a representative subsample (n = 70). Self-report measures included Karasek's Job Content Instrument and the author-designed Work Interpersonal Relationships Inventory. Independent observations of work posture were performed using techniques similar to those reported by Sauter et al. [1991]. Pain during the last week was reported by 59% (n = 88) of the respondents, and 28% (n = 42) were categorized by symptom criteria potentially to have musculoskeletal disorders. More hours per day of VDT use and less decision latitude on the job were significant risk factors for potential musculoskeletal CTDs. Head rotation and relative keyboard height were significantly related to more severe pain and stiffness in the shoulders, neck, and upper back. Lower levels of co-worker support were associated with more severe hand and arm numbness. For both the region of the shoulders, neck, and upper back and the hand and arm region, however, the contributions of relative keyboard and seat back heights to symptom severity were modified by psychological workload, decision latitude, and employee relationship with the supervisor. Alternative explanations for these findings are discussed.

Adult↗

Ergonomics and cytotechnologists: reported musculoskeletal discomfort.

Analysis of this survey of 244 responding cytotechnologists shows that a high percentage still suffer from musculoskeletal disorders commonly associated with poor ergonomic design in the workplace, despite the variety of ergonomically designed microscopes that have been introduced into the market. Although Kalavar and Hunting surveyed a small group of cytotechnologists in the Washington, DC, area in 1996, no broad-based study has focused specifically on these professionals. The landmark study of microscope ergonomics, published by Soderberg in 1980, documented widespread musculoskeletal complaints in the electronics industry. This article identifies and discusses the types of musculoskeletal discomforts experienced by cytotechnologists. We propose that both practicing and student cytotechnologists receive training in ergonomic principles and appropriate interventions, such as improved work practices, proper ergonomic aids, well-designed workstations, and ergonomically designed equipment. More than 85% of respondents reported some musculoskeletal discomfort. Among the symptoms presented are headache, neck pain and stiffness, pain of the lower and upper back, and upper-extremity discomfort. Neurological symptoms, such as numbness, tingling, and/or pain in the hand and fingers, are often associated with repetitive motion. More than one-third reported numbness, tingling, and/or pain in the left-hand fingers, usually used for the fine-focus control knob. Almost one-half of respondents reported such symptoms for the right hand and fingers, normally used to manipulate the mechanical stage controls. Only 9% of the respondents were left-handed. Most (91%) were right handed. Although just over one-third (34.4%) of respondents worked for an employer with an ergonomics program, ergonomic assessments had been performed for only about one-half (17.6%) of these. In addition, approximately 10% of respondents indicated that ergonomics assessments had been performed on their workstations, even though the employer did not have an ergonomics program. Because of the high prevalence of reported symptoms, we recommend that all cytologists be trained in basic ergonomic principles and the proper use of ergonomic aids. These interventions should reduce the prevalence of musculoskeletal discomfort in medical microscopists.

Cytodiagnosis↗