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PubMed2002

Motor evoked responses from the thigh muscles to the stimulation of the upper limb nerves in patients with late poliomyelitis.

OBJECTIVES: To demonstrate a clear-cut M response recorded from the severely affected thigh muscles to the stimulation of the upper limb nerves in a serial of patients with late poliomyelitis. METHODS: Fifteen patients with late poliomyelitis, 7 patients with spinal cord disorders and 11 control subjects were included. Evoked muscle responses were investigated in quadriceps femoris and/or thigh adductor muscles to the stimulation of the brachial plexus, median and ulnar nerves. RESULTS: Evoked muscle responses were obtained from the thigh muscles in all 12 late polio patients with proximal lower extremity involvement. The response could not be recorded from the thigh muscles neither in the 3 polio patients with upper extremity involvement nor in the healthy control subjects and in patients with other spinal cord disorders of anterior horn cell. CONCLUSIONS: It is proposed that the electrical stimulation of the arm nerves produce interlimb descending muscle responses in the severely affected atrophic thigh muscles of the patients with late polio. This finding suggests that there might be a focal and/or specific loss of inhibitory interneurons between injured and normal motor neurons and increased facilitatory synaptic action at the end of long propriospinal descending fibers in the case of late poliomyelitis.

Adult↗

PubMed2003

Larger thigh and hip circumferences are associated with better glucose tolerance: the Hoorn study.

OBJECTIVE: A higher waist-to-hip ratio, which can be due to a higher waist circumference, a lower hip circumference, or both, is associated with higher glucose levels and incident diabetes. A lower hip circumference could reflect either lower fat mass or lower muscle mass. Muscle mass might be better reflected by thigh circumference. The aim of this study was to investigate the contributions of thigh and hip circumferences, independent of waist circumference, to measures of glucose metabolism. RESEARCH METHODS AND PROCEDURES: For this cross-sectional study we used baseline data from the Hoorn Study, a population-based cohort study of glucose tolerance among 2484 men and women aged 50 to 75. Glucose tolerance was assessed by a 75-g oral glucose tolerance test; hemoglobin A(1c) and fasting insulin were also measured. Anthropometric measurements included body mass index (BMI) and waist, hip, and thigh circumferences. RESULTS: Stratified analyses and multiple linear regression showed that after adjustment for age, BMI, and waist circumference, thigh circumference was negatively associated with markers of glucose metabolism in women, but not in men. Standardized beta values in women were -0.164 for fasting, -0.206 for post-load glucose, -0.190 for hemoglobin A(1c) (all p < 0.001), and -0.065 for natural log insulin levels (p = 0.061). Hip circumference was negatively associated with markers of glucose metabolism in both sexes (standardized betas ranging from -0.093 to -0.296, p < 0.05) except for insulin in men. Waist circumference was positively associated with glucose metabolism. DISCUSSION: Thigh circumference in women and hip circumference in both sexes are negatively associated with markers of glucose metabolism independently of the waist circumference, BMI, and age. Both fat and muscle tissues may contribute to these associations.

Aged↗

PubMed2002

Comparative immunogenicity of hepatitis B vaccine administered into the ventrogluteal area and anterolateral thigh in infants.

OBJECTIVE: To compare the immunological response of hepatitis B vaccine given by intramuscular injection into the anterolateral thigh and ventrogluteal site of infants up to 10 months old at initiation of vaccination. METHODS: An open, randomized study of 200 healthy infants recruited from a single practice in a small regional town in New South Wales was carried out. Infants were vaccinated with hepatitis B vaccine (Engerix-B 10 microg) using a 0 months, 1 month, 6 months regimen, with venous blood being collected from children 4-6 weeks after the last dose of vaccine for quantitative determination of hepatitis B surface antibody (anti-HBs) titre. Infants with anti-HBs titre > or = 100 m IU/mL were considered to be 'good' responders and were unlikely to acquire clinically significant hepatitis B infection. Infants with anti-HBs titre < 100 m IU/mL were considered to be 'poor' responders and were given a booster dose of Engerix-B 20 micro g; serology was repeated for anti-HBs titre 2-3 months after this injection. RESULTS: Quantitative anti-HBs titre was obtained from 177 infants: 171 4-6 weeks after the last dose of vaccine; 87 at the ventrogluteal site (46 boys, 41 girls); and 84 at the anterolateral thigh site (38 boys, 46 girls). Good antibody response (anti-HBs titre > or = 100 m IU/mL) was not significantly different for the two sites (ventrogluteal 96.6%, anterolateral thigh 93.2%), and antibody geometric mean titres (GMT) for anti-HBs were comparable for the two sites (ventrogluteal 2071.2 +/- 5.8m IU/mL, anterolateral thigh 2073.2 +/- 5.2m IU/mL). CONCLUSION: The ventrogluteal and anterolateral thigh vaccination sites in infants are immunologically comparable for hepatitis B vaccine. Presumably the variance of this study with studies of adults reflected the uniform injection of vaccine antigen into muscle tissue in infants.

Analysis of Variance↗

PubMedDate not supplied

[The importance of roentgenological and scintigraphic studies in patients with and without thigh pain following cementless PCA hip endoprosthesis].

Persisting postoperative thigh pain is a common problem in cementless total hip prostheses occurring in a rate of about 15-20% of the patients. The reason for that phenomenon has not become clear so far. In a clinical, radiological and scintigraphic study 70 patients with 81 PCA cementless total hips were randomized in groups with (n = 34) and without significant thigh pain (n = 36). All patients underwent clinical examination including a standardized questionnaire, x-ray and 3-phase bone scintigraphy. Quantitative assessment of Tc-99m-MDP uptake was made. In the group of patients with persisting thigh pain the scintigraphic analysis showed an significantly increased uptake at the tip and the medial and lateral femur. These findings could not be correlated with clinical loosening of the prosthesis. Slight or moderate uptake in the area of the greater and lesser trochanter as well as the tip was a common finding in PCA prosthesis in all patients. In the radiological analysis no difference between both groups was evident. The study showed that patients with thigh pain after cementless PCA total hip prosthesis have specific regions of significantly increased uptake in scintigraphic examination (tip, medial and lateral femur), which cannot be correllated with clinically or radiologically signs of loosening. The morphologic reasons for the thigh pain remain unclear.

Adult↗

PubMed1993

Preferential concentration of azithromycin in an infected mouse thigh model.

The possibility of augmentation of azithromycin delivery to infection loci was evaluated by the use of Staphylococcus aureus thigh infection models with CD-1 mice. The intramuscular infections that developed were characterized by rapid growth of bacteria and induction of a localized oedema that was assessed gravimetrically. Microscopic examination of infected thighs showed massive infiltration of polymorphonuclear leucocytes (viable and degranulated), when compared to saline-injected thighs, from 24 to > or = 72 h after infection. Azithromycin concentrations were enhanced significantly (P < or = 0.02) in infected thigh tissues compared with contralateral non-infected tissues, and correlated with oedema from 24-72 h after challenge and dosing. The azithromycin levels in infected tissue after a 5 mg/kg dose were sufficient to cause a significant reduction in the number of cfu. If azithromycin administration was delayed until inflammation was more severe, the result was an even greater preferential concentration of azithromycin into the infected thigh. Preferential concentration of azithromycin was not observed when extensive oedema was produced by injection of histamine. However, this oedema was not associated with a significant influx of polymorphonuclear leucocytes. In comparative studies, macrolide antibiotics known to be concentrated in phagocytes, such as erythromycin, roxithromycin, and clarithromycin, were not concentrated preferentially in infected tissues under the experimental conditions used; tissue levels were above or at the in-vitro MIC level for < or = 24 h. The data indicate that delivery of biologically available azithromycin to infected tissues is enhanced by cellular inflammatory processes.

Animals↗

PubMed1994

Extended anterior thigh flaps for repair of massive cervical defects involving pharyngoesophagus and skin: an introduction to the "mosaic" flap principle.

"Mosaic" flaps, i.e., connected anteromedial thigh-groin flaps, and connected anterolateral thigh-medial thigh flaps, the pedicles of which are the perforators of the lateral circumflex femoral system, the superficial circumflex iliac vessels, and the perforators from the femoral vessels are used to repair cervical skin defects involving the pharyngoesophagus. Although they appear to be similar to "siamese" flaps, these mosaic flaps are a new concept because they consist of two adjacent flaps that are simultaneously elevated with double pedicles including the lateral circumflex femoral system. The pedicles of the groin or the medial thigh flaps are anastomosed to the muscle branch or the descending branch of the lateral circumflex femoral system, which is the pedicle of the anterior thigh flaps, and the system is joined to a single recipient vessel as a "bridge" flap. The main advantages of these mosaic flaps are (1) they offer single recipient vessels, (2) they offer a larger extension of the vascular territory of a skin flap, and (3) they offer the possibility of creating custom-made composite flaps such as musculocutaneous and osteocutaneous flaps, and (4) the elevation of the flaps simultaneous with head and neck tumor resection is possible. Based on cited cases, it is suggested that mosaic flaps are suitable to use for reconstruction of massive cervical defects involving the cervical skin and the pharyngoesophagus due to recurrent laryngeal carcinomas.

Aged↗

PubMed2004

Clinical spectrum of acute compartment syndrome of the thigh and its relation to associated injuries.

The reason for the described clinical variability of acute compartment syndrome of the thigh, with high morbidity and mortality in some patients and an uncomplicated clinical course in others, is not known. To better define the clinical spectrum and factors determining the clinical course of this rare clinical entity, we did a retrospective multicenter study of 28 patients with 29 thigh compartment syndromes. The leading cause of acute thigh compartment syndrome was blunt trauma from motor vehicle accidents (46%) or contusion (39%). Pain with passive motion was present in all patients who were conscious, followed by paresthesia (60%), and paralysis (42%). The anterior compartment was involved most frequently with mean compartment pressure of 58 +/- 3 mm Hg. Myonecrosis, sepsis, and need for skin grafting were observed more frequently in patients with ipsilateral femur fracture. Only 7% of patients with isolated thigh compartment syndromes had short-term complications compared with 57% of patients with ipsilateral femur fractures. The incidence of complications correlated with the time to fasciotomy. Mortality was limited to patients with high injury severity scores. The clinical spectrum of thigh compartment syndrome is comparable with that of other compartment syndromes and its clinical course is determined by its associated injuries.

Acute Disease↗

PubMed1996

Validity of an anthropometric estimate of thigh muscle cross-sectional area.

This study examined the validity of an anthropometric estimate of thigh muscle cross-sectional area using magnetic resonance imaging (MRI). The anthropometric model assumed that a cross section of the thigh could be represented as a circle with concentric circular layers of fat-plus-skin, muscle, and bone tissue. On 18 healthy, active men and women (mean +/- SD age = 23 +/- 5 yr), total thigh circumference (CT) was measured with a fiberglass tape, fat-plus-skin thickness was measured over the quadriceps (SQ) using calipers, and the distance across the medial and lateral femoral epicondyle (dE) was measured with calipers. Direct measurements of each tissue were obtained by planimetry of an MRI image taken at the same site as the circumference and skinfolds. Thigh muscle cross-sectional area (AM) was estimated as follows: [equation: see text] Mean +/- SD AM from MRI and anthropometry were 121.9 +/- 35.1 cm2 and 149.1 +/- 34.1 cm2 (r = 0.96, SEE = 10.1 cm2), respectively. Errors in the anthropometric approximations of AM were due to an overestimate of the total thigh cross-sectional area and an underestimate of fat-plus-skin compartment. Because of the close relationship between MRI and anthropometric estimates of AM, zero-intercept regression was used to produce the following final equation, applicable for use in populations studies of young, healthy, active men and women: [equation: see text]

Adult↗

PubMed2001

The adductor flap: a new method for transferring posterior and medial thigh skin.

Skin flaps from the medial aspect of the thigh have traditionally been based on the gracilis musculocutaneous unit. This article presents anatomic studies and clinical experience with a new flap from the medial and posterior aspects of the thigh based on the proximal musculocutaneous perforator of the adductor magnus muscle and its venae comitantes. This cutaneous artery represents the termination of the first medial branch of the profunda femoris artery and is consistently large enough in caliber to support much larger skin flaps than the gracilis musculocutaneous flap. In all 20 cadaver dissections, the proximal cutaneous perforator of the adductor magnus muscle was present and measured between 0.8 and 1.1 mm in diameter, making it one of the largest skin perforators in the entire body. Based on this anatomic observation, skin flaps as large as 30 x 23 cm from the medial and posterior aspects of the thigh were successfully transferred. Adductor flaps were used in 25 patients. On one patient the flap was lost, in one the flap demonstrated partial survival, and in 23 patients the flaps survived completely. The flap was designed as a pedicle island flap in 14 patients and as a free flap in 11. When isolating the vascular pedicle for free tissue transfer, the cutaneous artery is dissected from the surrounding adductor magnus muscle and no muscle is included in the flap. Using this maneuver, a pedicle length of approximately 8 cm is isolated. In addition to ample length, the artery has a diameter of approximately 2 mm at its origin from the profunda femoris artery. The adductor flap provides an alternative method for flap design in the posteromedial thigh. Because of the large pedicle and the vast cutaneous territory that it reliably supplies, the authors believe that the adductor flap is the most versatile and dependable method for transferring flaps from the posteromedial thigh region.

Female↗

PubMed2004

Use of the anterolateral thigh flap for reconstruction of the head and neck.

PURPOSE OF REVIEW: The anterolateral thigh free flap has achieved recent popularity in North America for the reconstruction of head and neck defects after ablative surgery. The flap is most often based on either the septocutaneous or musculocutaneous perforators of the descending branch of the lateral circumflex femoral artery. Its versatility allows for a subcutaneous, fasciocutaneous, myocutaneous, or adipofascial flap to be obtained. RECENT FINDINGS: Recent publications have described the utility of the anterolateral thigh flap for reconstruction of head and neck defects. It has been used successfully in the reconstruction of the laryngopharynx, oral cavity, oropharynx, external skin, and maxilla. Furthermore, when a thinner flap is needed, a suprafascial anterolateral thigh flap may be raised or the flap may be thinned after it is obtained. SUMMARY: The anterolateral thigh flap is a highly versatile and reliable flap for use in the reconstruction of various soft tissue defects of the head and neck. This flap has gained great popularity in mainland China, Taiwan, and Japan given its versatility, ability for a two-team approach, and minimal donor site morbidity. However, it has not met the same enthusiasm in Europe and North America because of the relative difficulty in perforator dissection, reported variations of the vascular anatomy, and the presumed increased thickness of the anterolateral thigh tissue in the Western population in comparison with the patient population of the Far East. These obstacles may be overcome by increased surgical experience and by the ability to create a thinner suprafascial flap or thinning the flap after it has been obtained.

Head↗

PubMed2003

Soft-tissue reconstruction using a free anterolateral thigh flap: experience with 28 patients.

The authors present their experience using the free anterolateral thigh fasciocutaneous flap for head and neck and extremity reconstruction. From January 2000 through March 2002, 28 free anterolateral thigh flaps were transferred to reconstruct various soft-tissue defects. All patients were operated by two teams. All flaps were elevated based on one perforator only. The sizes of the flaps ranged from 9 x 11 to 20 x 26 cm. The success rate was 96.5% (27 of 28), with one partial failure. The cutaneous perforators were always found. Septocutaneous perforators were found in 3 of 28 patients (10.7%). Musculocutaneous perforators (89.3%) were found in the remaining patients, and the number of perforators ranged from two to five (average, three perforators). In 4 patients, flaps were used for sensate reconstruction. The authors used the anterolateral thigh flap as a thin flap in 10 patients. Mean follow-up was 13.5 months (range, 2-25 months). Soft-tissue reconstruction with the free anterolateral thigh flap in various regions of the body provides an excellent functional and cosmetic result with minimal donor site morbidity. The anterolateral thigh flap has many advantages over other conventional free flaps and it seems to be an ideal choice for the reconstruction of soft-tissue defects.

Adolescent↗

PubMed1985

Thigh muscle mass and function in patients treated with glucocorticoids.

Treatment with glucocorticoids causes wasting of proximal skeletal muscles. There is evidence that physical training improves muscle mass and strength in glucocorticoid-treated rats. Whether this is also true in humans is unknown. The present investigation was designed to establish in what respect moderate physical training may alter muscle mass and function as assessed quantitatively by computed tomography (CT) and with an isokinetic dynamometer (Cybex II). Compared with matched controls, both female (n = 17) and male (n = 22) patients treated with prednisone (15.4 +/- 6.6 mg die-1) had a lower mid-thigh muscle area of 20 and 45% and an increased mid-thigh fat/muscle ratio of 25 and 100%, respectively. The mean peak torque and the total work output of the thigh muscle were lower by 20-30% (n = 14). Fifty days of isokinetic training in six patients increased the thigh muscle area, decreased the thigh fat area and normalized the mean peak torque and total work output. Thus, glucocorticoid-induced muscle wasting can be reversed by increasing physical activity.

Adult↗

PubMed1992

Thigh composition in young and elderly men determined by computed tomography.

Computed tomography (CT) was used to quantify components of the thigh in young (n = 13) and elderly (n = 11) men. Cross-sectional areas (CSA) of the total limb, total muscle plus bone, quadriceps compartment, hamstring compartment and bone were measured at each of five scan sites along the length of the thigh. Non-muscle tissue (NMT) areas within the muscle compartments were measured using changes in density based on Hounsfield units. Skin plus subcutaneous fat areas and quadriceps and hamstring lean muscle areas were calculated by subtraction. Geometric formulae were used to calculate related volumes for each thigh component. Volumes were also predicted from regression equations employing thigh length and component CSA from single mid-limb CT scans. The results showed that while total thigh CSA was not different in elderly men, they had significantly smaller total muscle plus bone (13.0%), and quadriceps (26.4%), and hamstring (17.9%) muscle areas. The elderly men also had significantly greater CSA for skin plus subcutaneous fat (37.6%), and for NMT in the quadriceps (59.4%) and hamstring (127.3%) muscle compartments. These results suggest that comparisons of relative leg muscle strength between young and elderly men may be misleading due to the decrease in actual muscle tissue associated with ageing. Appropriate quantification of muscle size and CSA must be carried out before such comparisons can be meaningful.

Aging↗

PubMed1996

Comparative effects of high- and low-intensity resistance training on thigh muscle strength, fiber area, and tissue composition in elderly women.

The effects of 52 weeks resistance training at one of two exercise intensities on thigh muscle strength, fiber cross-sectional area (CSA), and tissue composition were studied in healthy 65-79-year-old women. Subjects were assigned to either a control (CO), high-intensity (HI) or low-intensity (LO) training group. Exercise regimens consisted of three sets of leg press, knee extension, and knee flexion exercises, 3 days/week, at either 80% of one-repetition maximum (1-RM) for seven repetitions (HI) or 40% of 1-RM for 14 repetitions (LO). Dynamic muscle strength was evaluated by 1-RM, thigh lean tissue mass (LTM), fat mass, and bone mineral density (BMD, g/cm2) by dual energy X-ray absorptiometry, and fiber CSA of vastus lateralis m. by histomorphometry. Muscle strength increased, on average (+/- SEM), by 59.4 +/- 7.9% and 41.5 +/- 7.9% for HI and LO, respectively, compared to 1.3 +/- 4.8% in CO (P = 0.0001). Type I fiber CSA increased over time (P < 0.05) in both exercise groups, with a trend for increased type II area (HI, P = 0.06; LO, P = 0.11). There was no significant effect of either exercise program on thigh tissue composition, except for BMD at the 1/3 site (middle third of the femur), where LO and CO groups experienced a decline (P < 0.05) of -2.2 +/- 0.5% and -1.8 +/- 0.6%, respectively, while HI maintained BMD (+1.0 +/- 1.0%). Both training programs produced significant gains in thigh muscle strength, which were associated with fiber hypertrophy, although these did not translate into appreciable alterations in thigh tissue composition.

Absorptiometry, Photon↗

PubMed1999

Influences of thigh cuffs on the cardiovascular system during 7-day head-down bed rest.

Thigh cuffs, presently named "bracelets," consist of two straps fixed to the upper part of each thigh, applying a pressure of 30 mmHg. The objective was to evaluate the cardiac, arterial, and venous changes in a group of subjects in head-down tilt (HDT) for 7 days by using thigh cuffs during the daytime, and in a control group not using cuffs. The cardiovascular parameters were measured by echography and Doppler. Seven days in HDT reduced stroke volume in both groups (-10%; P < 0.05). Lower limb vascular resistance decreased more in the cuff group than in the control group (-29 vs. -4%; P < 0.05). Cerebral resistance increased in the control group only (+6%; P < 0.05). The jugular vein increased (+45%; P < 0.05) and femoral and popliteal veins decreased in cross-sectional area in both groups (-45 and -8%, respectively; P < 0.05). Carotid diameter tended to decrease (-5%; not significant) in both groups. Heart rate, blood pressure, cardiac output, and total resistance did not change significantly. After 8 h with thigh cuffs, the cardiac and arterial parameters had recovered their pre-HDT level except for blood pressure (+6%; P < 0.05). Jugular vein size decreased from the pre-HDT level (-21%; P < 0.05), and femoral and popliteal vein size increased (+110 and +136%, respectively; P < 0.05). The thigh cuffs had no effect on the development of orthostatic intolerance during the 7 days in HDT.

Adaptation, Physiological↗

PubMed2005

Comparison of the autoregulatory mechanisms between middle cerebral artery and ophthalmic artery after thigh cuff deflation in healthy subjects.

PURPOSE: To compare dynamic autoregulation in the middle cerebral artery (MCA) and the ophthalmic artery (OA) after a step decrease in systemic blood pressure. METHODS: Eighteen healthy male young subjects were studied. Ultrasound parameters and systemic blood pressures were recorded in each subject before, during, and after a step decrease in blood pressure. Continuous blood pressure recordings were made with a finger plethysmograph system, and flow velocities in the MCA and the OA were continuously measured with Doppler ultrasound. Large bilateral thigh cuffs were inflated and a pressure approximately 20 mm Hg above peak systolic blood pressure was maintained for 3 minutes. A decrease in blood pressure was induced by rapid deflation of bilateral thigh cuffs. Experiments were performed separately for the OA and the MCA. RESULTS: Systemic blood pressure showed a step decrease immediately after thigh cuff release (9%-15%) and returned to baseline 7 to 10 pulse cycles later. Flow velocities in the MCA returned to baseline earlier than systemic blood pressure, indicating peripheral vasodilatation, with a maximum of five to six pulse cycles after the blood pressure decrease. By contrast, flow velocities in the OA returned to baseline later than systemic blood pressure, reflecting peripheral vasoconstriction with a maximum 10 to 15 pulse cycles after cuff release. There was a statistically significant difference in the time course of the resistance changes in the two selected arteries after thigh cuff release (P < 0.001). CONCLUSIONS: The results of the present study suggest substantial differences in the autoregulatory behavior of the vascular beds peripheral to the MCA and the OA. Results in the MCA would be compatible with either metabolic or myogenic vasodilatation, whereas the results in the OA could reflect sympathetic vasoconstriction. Further studies are needed to support this hypothesis. The thigh cuff technique may represent an interesting approach to the study of autoregulation in patients with ocular vascular disease.

Adult↗

PubMed2006

Thigh intermuscular fat is inversely associated with spontaneous GH release in post-menopausal women with abdominal obesity.

CONTEXT: The metabolic syndrome is characterized by an increased accumulation of visceral adipose tissue (VAT) and blunted GH secretion. There are, however, no data on the association between GH secretion and other fat depots (in liver and muscle). OBJECTIVE/DESIGN: The aim of this cross-sectional study, which included 20 post-menopausal women with abdominal obesity, was to determine the association between GH secretion and regional adipose tissue (AT) distribution. Twelve-hour GH profiles (2000-0800 h) were performed by blood sampling every 20 min. GH was analyzed using an ultra-sensitive assay followed by approximate entropy (ApEn) and deconvolution analysis. RESULTS: In simple regression analyses, both basal and pulsatile GH secretions correlated negatively with VAT and thigh intermuscular adipose tissue (IMAT), but not with hepatic fat content. There was no correlation between ApEn and the AT depots studied. In multiple regression analysis, pulsatile GH secretion correlated inversely with thigh IMAT (B-coefficient=-0.67; P<0.01), whereas the correlation with VAT became non-significant. Furthermore, in multiple regression analysis, basal GH secretion correlated negatively with VAT (B-coefficient=-0.77; P=0.001), but not significantly with thigh IMAT. CONCLUSION: In post-menopausal women with abdominal obesity, pulsatile GH secretion demonstrated an independent, negative association with thigh IMAT, whereas basal GH secretion showed an independent, negative association with VAT. These findings suggest that the neuroendocrine association between fat mass and somatotropic axis is depot-dependent. We have identified thigh IMAT to be important in this interplay.

Abdominal Fat↗

PubMed2001

Adductor insertion avulsion syndrome (thigh splints): spectrum of MR imaging features.

OBJECTIVE: "Thigh splints," also known as the adductor insertion avulsion syndrome, is a painful condition affecting the proximal to mid femur at the insertion of the adductor muscles of the thigh. Scintigraphic findings in this syndrome have been described; we report a spectrum of MR imaging abnormalities involving this portion of the femur in a group of patients presenting with hip, groin, or thigh pain. CONCLUSION: Symptoms of vague hip, groin, or thigh pain may be associated with stress-related changes in the proximal to mid femoral shaft (thigh splints). When interpreting MR imaging studies of the pelvis in patients presenting with these symptoms, careful attention should be directed to this portion of the femur. This is especially important because the findings may be subtle, and this region is often at the distal edge of most MR imaging studies of the pelvis and hip.

Accidents, Occupational↗