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At least 775 records · Page 43Linked to original sources
PubMed2005

Spinal CT-guided interventional procedures for management of chronic back pain.

PURPOSE: Image-guided interventional procedures have arisen as an alternative for management of back pain, with controversial indications and efficacy. This study describes the technique, clinical impact, and complications of computed tomography (CT)-guided infiltrations for the management of chronic back pain. MATERIALS AND METHODS: One hundred eleven patients with chronic back pain treated with CT-guided infiltrations were studied prospectively. Procedures performed included nerve root, facet joint, epidural, and sacroiliac joint blocks. Pain intensity was evaluated with use of a visual analog scale. RESULTS: Two hundred twenty-two infiltrations were performed in 111 consecutive patients. After 18 months of follow-up, pain improvement lasted for a mean duration of 9 months and the complication rate was less than 1%. Moderate to good pain response was seen in 95% of followed patients and 4% of patients required surgery. CONCLUSION: Spinal CT-guided infiltration constitutes an effective therapy for chronic back pain. This series confirms a low complication rate, good response, and high therapeutic value.

Back Pain↗
PubMed2004

Biomechanics of back pain.

This paper offers a mechanistic account of back pain which attempts to incorporate all of the most important recent advances in spinal research. Anatomical and pain-provocation studies show that severe and chronic back pain most often originates in the lumbar intervertebral discs, the apophyseal joints, and the sacroiliac joints. Psychosocial factors influence many aspects of back pain behaviour but they are not important determinants of who will experience back pain in the first place. Back pain is closely (but not invariably) associated with structural pathology such as intervertebral disc prolapse and endplate fractures, although age-related biochemical changes such as those revealed by a 'dark disc' on MRI have little clinical relevance. All features of structural pathology (including disc prolapse) can be re-created in cadaveric specimens by severe or repetitive mechanical loading, with a combination of bending and compression being particularly harmful to the spine. Structural disruption alters the mechanical environment of disc cells in a manner that leads to cell-mediated degenerative changes, and animal experiments confirm that surgical disruption of a disc is followed by widespread disc degeneration. Some people are more vulnerable to spinal degeneration than others, largely because of their genetic inheritance. Age-related biochemical changes and loading history can also affect tissue vulnerability. Finally the concept of 'functional pathology' is introduced, according to which, back pain can arise because postural habits generate painful stress concentrations within innervated tissues, even though the stresses are not high enough to cause physical disruption.

Biomechanical Phenomena↗
PubMed2002

Musculoskeletal involvement of brucellosis in different age groups: a study of 195 cases.

OBJECTIVE: The aim of the present study was to determine the distribution and characteristics of arthritis in 195 patients with musculoskeletal involvement due to brucellosis in different age groups in the southeastern region of Turkey. PATIENTS AND METHODS: We carried out a retrospective analysis of 283 patients with brucellosis records and identified 195 with musculoskeletal involvement. Patients were classified into acutesubacute (<12 months) and chronic (>12 months) brucellosis. Patients were also classified into three age groups: <15 years old (group A), 15-45 years (group B), and over 45 years (group C). In addition, patients were classified into five subgroups according to type of arthritis: peripheral arthritis, polyarthritis, spondylitis, sacroiliitis, and spondylitis/sacroiliitis. RESULTS: 195 (69%) of the 283 patients [138 female (49%), 145 male (51%)] had musculoskeletal involvement. Of the patients with musculoskeletal involvement 113 (58%) were female and 82 (42%) were male, ranging in age from 3 to 71 years (mean age 33.14 +/- 15.03). Of 195 patients studied, 39 (14%) were <15 years old (group A), 122 (43%) were aged 15-45 (group B), and 34 (12%) were over 45 (group C). The most commonly affected joints were the sacroiliac joint in 108 patients (55%), peripheral joints in 106 (54%), and spondylitis in 60 (31%). Of 108 patients with sacroiliitis, 19 were in group A, 76 in group B, and 13 in group C. Bilateral sacroiliitis was less common in group B (23 patients) than in groups A (3) and C (3) (p <0.05). Spondylitis was more common in group B (18%). Sacroiliitis and polyarthritis were more common than other types of musculoskeletal involvement in females, whereas in males the distribution of all types was similar. In patients aged under 15 and 15-45, sacroiliitis and polyarthritis were common compared with other types of arthritis, but the distribution was similar in patients over 45. CONCLUSION: In southeastern Anatolia musculoskeletal involvement in brucellosis is frequent. The series presented suggests that musculoskeletal involvement in group A is higher than groups A and C. The prevalence of musculoskeletal involvement appears to differ according to age, sex and clinical type.

Adolescent↗
PubMed2001

Outbreak of polyarthritis with pyrexia in Western Rajasthan.

AIM: To establish the etiology of recent out break of polyarthritis which occurred in Kanvari village of Churu district of Rajasthan in August, 1999. METHODOLOGY: Forty eight patients of polyarthritis were studied by Hb, TDLC, ESR, CRP, throat swab Gram's stain and culture, blood culture, ASO titer, rheumatoid factor, Rose Bengal plate agglutination test, standard tube agglutination test for brucellosis, widal test, urine examination, X-ray chest, ECG and X-ray of the affected joint. RESULTS: Forty eight patients presented with acute polyarthritis with low grade fever of 1-2 week duration. Most common joint involved was sacroiliac joint (52.08%). Most of patients had multiple joint involvement (93.75%). The Rose Bengal plate agglutination test and standard tube agglutination test for brucella were positive in high titres in 44 (91.60%) patients. All the patients were treated with therapy for brucellosis and followed up for 12 weeks and responded well without complications. CONCLUSION: In case of polyarthritis possibility of brucellosis should always be kept in mind.

Acute Disease↗
PubMed1983

Radionuclide joint imaging.

Radionuclide joint imaging with the technetium-99m-labeled phosphates is a sensitive technique for the detection of inflammatory articular disease, although it is nonspecific as to the cause of the increased uptake and offers poor resolution in comparison to conventional radiography. There does not appear to be any place for the routine use of joint imaging of the peripheral joints, as there is little evidence that it benefits patient management. Scintigraphy is of benefit in the detection of osteomyelitis, Legg-Perthes' disease, and osteonecrosis, where changes may antedate roentgenologic abnormalities. Technetium-99m-phosphates may have an increasing role in the evaluation of knee and hip prosthetic joint loosening and infection, especially regarding the femoral components. Scintigraphy may be useful in excluding synovitis and allaying concern in selected patients with chronic articular pain in whom a conventional diagnostic evaluation is unrewarding. Attempts have been made to use radionuclide joint imaging to quantitate the degree of synovitis present in individual joints, particularly the sacroiliac joints. To date, reliable methods that distinguish normal from abnormal joints have not been established, although this remains an area of potential usefulness and active research. Scintigraphy with 99mTc-phosphates is useful in the detection of spinal fracture and pseudoarthrosis in individuals with ankylosing spondylitis.

Adult↗
PubMed1984

[Psoriasis arthropathica and seronegative rheumatoid arthritis--differential diagnostic considerations].

For differential-diagnostic considerations concerning seronegative arthritides two groups of patients with 25 patients each of the disease groups psoriasis arthropathica and serologically negative rheumatoid arthritis were selected. The differentiation of the two diseases was performed by clinical, paraclinical and radiological findings. When there are no typical psoriatic changes of skin and/or nails and there is an empty family anamnesis concerning this dermatosis, respectively, the coordination of seronegative arthritides is considerably rendered more difficult. Here the radiomorphological investigations particularly of the sacroiliacal joint and/or of the spine essentially contribute, since the arthritis of the sacroiliacal joint is to seen in high incidence in psoriasis arthropathica. Out of the number of the paraclinical values the determination of the complement factor C 4 and of immunoglobulin M gets the importance of a sign of differentiation, in which case C 4 in the psoriasis arthropathica and the immunoglobulin M in the seronegative rheumatoid arthritis are statistically significantly increased. The problems of the often difficult differential diagnosis between the two groups of disease can be clarified only by complex clinical examinations, paraclinical parameters and subtile radiodiagnosis. A close interdisciplinary cooperation between experienced dermatologists, rheumatologists and radiologists seems reasonable.

Adult↗
PubMed1979

[Case report of a patient with coexistent rheumatoid arthritis and ankylosing spondylitis].

In simultaneous conditions of inflammatory changes in peripheral joints and in sacroiliac joints, a differential diagnosis, amongst others, of rheumatoid arthritis with involvement of the sacro-iliac joints and also ankylosing spondylitis with peripheral joint involvement should be considered. It seems that in rare cases both diseases occur together. We describe one female patient with coexistence of rheumatoid arthritis and ankylosing spondylitis. The X-rays showed sacro-iliitis, syndesmophytes and inflammatory changes of the finger and toes, which are typical for rheumatoid arthritis. Rheumatoid factor was detected in serum and in synovial fluid. HLA B27 was negative. The results of 13 patients with coexistence of rheumatoid arthritis and ankylosing spondylitis reported in the literature since 1975, are compared with the above described patient.

Alpha-Globulins↗
PubMedDate not supplied

Bone-graft harvesting from iliac and fibular donor sites: techniques and complications.

The ilium and the fibula are the most common sites for bone-graft harvesting. The different methods for harvesting iliac bone graft include curettage, trapdoor or splitting techniques for cancellous bone, and the subcrestal-window technique for bicortical graft. A tricortical graft from the anterior ilium should be taken at least 3 cm posterior to the anterior superior iliac spine (ASIS). Iliac donor-site complications include pain, neurovascular injury, avulsion fractures of the ASIS, hematoma, infection, herniation of abdominal contents, gait disturbance, cosmetic deformity, violation of the sacroiliac joint, and ureteral injury. The neurovascular structures at risk for injury during iliac bone-graft harvesting include the lateral femoral cutaneous, iliohypogastric, and ilioinguinal nerves anteriorly and the superior cluneal nerves and superior gluteal neurovascular bundle posteriorly. Violation of the sacroiliac joint can be avoided by limiting the harvested area to 4 cm from the posterior superior iliac spine (PSIS) and by not penetrating the inner cortex. The caudal limit for bone harvesting should be the inferior margin of the roughened area anterior to the PSIS on the outer table to keep from injuring the superior gluteal artery. Potential complications of fibular graft harvesting include neurovascular injury, compartment syndrome, extensor hallucis longus weakness, and ankle instability. The neurovascular structures at risk for injury during fibular bone-graft harvesting include the peroneal nerves and their muscular branches in the proximal third of the fibular shaft and the peroneal vessels in the middle third.

Bone Transplantation↗
PubMed2000

Imaging of the seronegative spondyloarthropathies.

The group of seronegative spondyloarthropathies consists of ankylosing spondylitis, psoriatic arthritis, Reiter's disease, enteropathic spondylitis, and a fifth entity known as undifferentiated spondyloarthropathy. All of these diseases share common clinical and radiographic features with characteristic involvement of the sacroiliac joints, spine, and to various degrees, the peripheral joints. Although plain radiographs are the first line of imaging investigation, they are often insensitive for demonstrating the early changes of sacroiliitis, an important feature for establishing the early diagnosis of seronegative spondyloarthropathy. Other imaging modalities, including conventional tomography, bone scintigraphy, and computed tomography, have improved visualization of inflammatory changes at the sacroiliac joints. This article will review these modalities and emphasize the role of magnetic resonance imaging. By directly imaging changes in the synovium, articular cartilage, and subchondral bone, findings on magnetic resonance imaging are the most sensitive and specific for sacroiliitis and other changes in the axial skeleton. Its role and that of ultrasound in the assessment of the peripheral joints will also be highlighted.

Adult↗
PubMed1997

Intraosseous pneumatocyst of the ilium: CT findings in two cases and literature review.

Intraosseous pneumatocyst of the ilium is a rare lesion of uncertain origin. It predilects male subjects and may be associated or not with sacroiliac joint degenerative disease, intra-articular gas, sacral pneumatocyst, and communication with the articular space. To our knowledge, only 16 observations have been reported in the literature. We have evaluated with plain radiographs and CT two additional cases. Plain films frequently identify these lesions, but CT is the method of choice in demonstrating their air density and assessing the possible abnormalities of the surrounding bone and sacroiliac joints.

Adult↗
PubMed2003

The gross and radiographic appearance of sacroiliac ankylosis capsularis ossea in the dog.

This study was carried out to determine the incidence and to describe the radiographic appearance of ankylosis capsularis ossea at the canine sacroiliac joint, as well as to determine factors, which might cause radiographic misinterpretation of this finding. Bone specimens of 646 pelves of pure-bred dogs were assessed for morphological evidence of ankylosis capsularis ossea. The lesion was most commonly present at the cranioventral aspects of the sacroiliac joint. More than 50% of adult dogs had signs of being at least mildly affected. Among these, large and giant breeds were most commonly involved. Unlike moderate and severe degrees of this disease, smaller osteophytes had not been visualised on radiographs. For radiographic diagnosis, angled views of the sacrum are recommended. In central views of the sacrum, the presence of increased sacral concavity consistent with increased ilial convexity of the caudal aspect of the sacroiliac contact area might simulate the presence of ankylosis capsularis ossea. The clinical importance of the present findings is discussed in context with human literature.

Animals↗
PubMed2002

[Osteomyelitis in children: sometimes hard to recognize].

In a 15-year-old girl with pain in the right lower abdomen and a 9-year-old boy with pain in the left thigh, an elevated sedimentation rate and C-reactive protein were reason to suspect osteomyelitis. Although no abnormalities could be seen on X-rays, skeletal scintigraphy revealed pathology in Liv-v and the sacroiliac joint, respectively. In the girl, Staphylococcus aureus was cultivated from material obtained by puncture and biopsy. After treatment with antibiotics, rest and gradual mobilisation, the girl retained a scoliosis; the boy was cured without residual complaints or abnormalities. Osteomyelitis of the spine and sacroiliac joint are rare disorders in children. The subtle and non-specific symptoms sometimes make the diagnosis difficult. Conventional X-ray is the primary radiological investigation. Bone scintigraphy (99mTc-oxidronate) is useful in the initial evaluation of children with suspected osteomyelitis. It is sensitive, relatively inexpensive, often does not require sedation and can detect multiple foci of disease. MRI is also highly sensitive and more specific than bone scintigraphy, but it cannot be used as a screening technique when the site of pathology is unclear. MRI is useful when the bone scintigram is inconclusive and in complicated cases for better anatomic details.

Abdominal Pain↗
PubMed1992

Functional construction of the sacroiliac ligamentous apparatus.

The sacroiliac ligamentous apparatus was examined as a part of a biomechanical pelvis-lower extremities system. The ligamentous apparatus of two pelves was freed, and the findings concerning the ligaments and their direction were drawn by a modular constructed, three-dimensional calculator model of the pelvic region. The ligamentous apparatus of the sacroiliac joint belongs to a functional system. Its task is to minimize every movement in this amphiarthrosis. The ligamentous apparatus shows an adaptation to strong or long-time-acting stresses. The junction between the os sacrum, pelvis and the ligamentous apparatus of the sacroiliac joint can be described as self-tightening. Local stresses are also reduced by the ligaments. A loosening in this system, which has to fix the os sacrum to the pelvic girdle, leads to a static insufficiency. The consequence is pain due to an irritation of the lumbosacral trunk. The exact description of the structure allows a representation according to the laws of similarity mechanics. With such a representation one can build up a computer-aided biomechanical model of the pelvis-lower extremities region. Examples for such a model are biomechanical finite-element models. By observing the laws of similarity mechanics (an exact description of geometric, physical and functional conditions) an efficient biomechanical model can be constructed that also takes into consideration the complex functional circumstances, in contrast to previous models. In order to construct such a model, one has to feed the findings of the examination into a data bank, which has to be demanded.

Biomechanical Phenomena↗
PubMed2003

S1 pediculoiliac screw fixation in instabilities of the sacroiliac complex: biomechanical study and report of two cases.

OBJECTIVE: A new technique for posterior sacroiliac fixation is described and compared with conventional techniques. PATIENTS/MATERIAL AND METHODS: A patient with sacral alar fracture (zone 1) and another one with sacroiliac joint instability due to tuberculous infection underwent fixation using screws placed in the S1 pedicle and the iliac bone. Vertical stability of the new technique also was investigated using polyurethane pelvic bone analogs and compared with anterior double plating (group P) and iliosacral screw fixation (group ISS) techniques. RESULTS: Healing was obtained and reduction was maintained in both patients on the final follow-up examination at 2 years postoperatively. Vertical loading tests revealed that failure loads within the first 10 mm of displacement of the new pediculoiliac screw fixation technique (group PIS) was higher than plating (P = 0.03) and lower than ISS techniques (P = 0.002). Ultimate failure load of the PIS technique was slightly higher than plating (P = 0.277) and lower than ISS techniques (P = 0.003). With the addition of an iliosacral screw to the pediculoiliac screw construction (PIS+ISS), the PIS technique became more stable in early (P = 0.110) and ultimate failure loads (P = 0.003). CONCLUSIONS: Pediculoiliac screw fixation for sacroiliac joint disruptions and zone I sacrum fractures using iliac and S1 pedicle screws is a new and effective alternative for obtaining and maintaining anatomic reduction.

Adult↗
PubMed1999

[Imaging diagnosis in suspected inflammatory rheumatoid axial skeleton diseases (sacroilitis)].

Involvement of the sacroiliac joints is a hallmark of the spondyloarthropathies, especially in ankylosing spondylitis. The conventional diagnostic imaging of sacroiliitis in early stages might cause problems, because sensitivity of conventional radiographic methods is known to be too low in early stages of the disease. Magnetic resonance imaging of the sacroiliac joints certainly enables one to detect acute as well as chronic inflammatory changes in all stages of the disease. The potential disadvantages of this method are the dependency on the examiner, the lack of standardization, and the relatively high costs. Therefore, the "Workgroup of Diagnostic Imaging in Rheumatology of the Regional Center of Rheumatology of Berlin" including experienced rheumatologists, skeletal radiologists, and orthopedists acquired an imaging graduation for detection of sacroiliitis in consideration of the clinical background, the technical details of the methods, questions of ionizing radiation exposure, and cost effectiveness.

Cost-Benefit Analysis↗
PubMed1999

Effect of pin location on stability of pelvic external fixation.

Pelvic external fixators allow two locations of pin purchase: anterosuperior (into the iliac crest) and anteroinferior (into the supraacetabular dense bone, between the anterior superior and anterior inferior iliac spine). The purpose of this study was to compare the stability of these two methods of fixation on Tile Type B1 (open book) and C (unstable) pelvic injuries. Five unembalmed cadaveric pelves (mean age, 68 years; four males and one female) were loaded vertically in a servohydraulic testing machine in a standing posture. The AO tubular system and Orthofix were used. On each pelvis, a Type B1 injury was simulated. Each external fixator was applied in each location in random order. Cyclic loads were applied through the sacral body to a maximum of approximately 200 N while force and displacement of the pelvic ring were recorded digitally. Sacroiliac joint motion was quantified tridimensionally with displacement transducers, mounted on the sacrum and contacting a target fixed to the posterior superior iliac spine. A Type C injury was created and augmented with two iliosacral lag screws, and the tests were repeated. For the Type B1 injuries with anteroinferior pin purchase, the mean stiffness was 201.2 N/mm for the AO frame and 203.2 N/mm for the Orthofix. For the anterosuperior frames the mean stiffness was 143.9 N/mm for the AO frame and 163.3 N/mm for the Orthofix. For Type B1 and Type C injuries, the anteroinferior location of pin purchase resulted in significantly reduced sacroiliac joint separation. There were no significant differences between the frame types. Dissection of the preinserted anatomic specimen revealed no evidence of injury to the lateral femoral cutaneous nerve after blunt dissection and drilling with protective drill sleeves. It is concluded that the anteroinferior location of external fixation pins is a safe technique with the potential for increased stability of fixation.

Acetabulum↗
PubMed1990

[Computed tomography in the diagnosis of the spondylarthritic syndrome].

45 patients, mean age 22.7 +/- 6.3 years, with spondylarthritic syndrome of mean duration of 3.0 +/- 3.4 years, were examined by computed tomography and ordinary roentgenography of the sacroiliac joints. The roentgenograms of 4 patients fulfilled the Rome diagnostic criteria for ankylosing spondylarthritis against 9 patients examined by computed tomography. The data for a probable form were 9 and 10 respectively. Sacroiliitis [correction of Sacroileitis] not fulfilling these criteria for spondylarthritis was found in 13 patients by ordinary roentgenography and in 12 patients by computed tomography. Concerning the sacroiliac joints the computed tomography seems a more sensitive method than the ordinary roentgenography. The computed tomography discovers a greater number of changes and gives a better image.

Adolescent↗
PubMed1995

Septic sacroiliitis.

The authors treated 31 patients with septic arthritis of the sacroiliac joint (14 patients with tuberculosis, 7 acute staphylococcal, 6 gonococcal, and 4 typhoid). The clinical presentation was vague and nonspecific, but most patients reported buttock pain, low back pain and difficulty walking. In 28 patients, the diagnosis was established after clinical examination, bone scans, hematologic investigations, and blood cultures. The diagnosis was established through arthrocentesis of the sacroiliac joint in 9 patients. In 3 patients, there was a delay in diagnosis. Twenty-nine patients improved on a conservative regimen of bed rest and antibiotics. Two patients required open drainage because of a large buttock abscess that was secondary to tuberculosis sarcoiliitis.

Adolescent↗