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PubMed1984

Investigation of sacroiliac disease: comparative evaluation of radiological and radionuclide techniques.

An attempt has been made to improve diagnostic precision in a group of diseases associated with inflammation of the sacroiliac joints by using a 99mtechnetium stannous pyrophosphate bone scan. Inflammation of these joints is associated with osteoblastic activity and is reflected by an increase in the uptake of radionuclide, which can be precisely quantitated. The uptake was markedly above the range of normal in patients with active ankylosing spondylitis (AS), and also in a number of patients with possible AS, psoriasis, and Reiter's syndrome. However, patients with Grade 4 radiological changes of the sacroiliac joints frequently had normal scans. This technique may be useful in the early diagnosis of sacroiliitis, and the nosological implications of the changes in patients with Reiter's syndrome and psoriasis are of interest.

Humans↗
PubMed1996

Assessment of the efficacy of sacroiliac corticosteroid injections in spondylarthropathies: a double-blind study.

Despite previously carrying out a first open study of sacroiliac injection of long-acting corticosteroid, it was not possible to evaluate the role of a placebo effect. We therefore performed a double-blind study in 10 patients/13 articulations, suffering painful sacroiliitis. At 1 month, 5/6 sacroiliac joints injected with corticosteroid described a relief of > 70%, in comparison to 0/7 of the placebo group (P < 0.05). Dolometry showed a marked decrease in the corticosteroid group from (mean +/- S.E.M.) 6.8 +/- 0.6 to 1.3 +/- 0.3, and decreases were mild in the placebo group: 7.0 +/- 0.6 to 5.2 +/- 0.5 (P < 0.005). Six of the seven sacroiliac joints of the placebo group and two patients with failure and relapse of the corticosteroid group were reinjected with corticosteroid. At 1 month, 12/14 (85.7%) were assessed as having a good result. Results were still significant at 3 months (62%) and 6 months (58%). Tolerance was good or very good in 86% of the cases, and we did not report any notable complication. This technique is safe and very efficient, and it has to be considered more widely in patients with contraindications or complications with NSAID, or if the medical treatment is unable to control sufficiently the active sacroiliitis.

Adrenal Cortex Hormones↗
PubMed2005

Tc-99m polyclonal human immunoglobulin scintigraphy in brucellosis.

The aim of this study was to evaluate the accuracy of Tc-99m polyclonal human immunoglobulin (HIG) scintigraphy for the diagnosis of brucellosis, and to compare its effectiveness in the diagnosis of osteoarticular involvement in comparison with bone scanning. Of 30 patients with brucellosis, Tc-99m HIG detected osteoarticular involvement in 18 (60%) patients, in whom the sacroiliac joints were affected most commonly (n = 13; 72.2%), with statistically predominant bilateral involvement (p < 0.05). By bone scanning, the rate of osteoarticular involvement was 70% (21 of 30 patients), and the joints affected most commonly were sacroiliac (15 of 21 patients; 71.4%). Although bilateral involvement was observed mostly by bone scanning, there was no significant difference between the rate of bilateral and unilateral involvement. The anatomical distribution of osteoarticular complications, as detected by Tc-99m HIG and bone scintigraphy, did not differ significantly. With Tc-99m HIG, orchitis was detected in two patients and paravertebral abscess in one patient. Since bone scanning did not detect these soft tissue complications, Tc-99m HIG scintigraphy might be useful for the detection of both osteoarticular and soft tissue complications resulting from brucellosis.

Abscess↗
PubMed1994

Reactive sacroiliitis as late sequela after severe pelvic inflammatory disease verified by laparoscopy or laparotomy.

OBJECTIVE: To investigate the frequency of lumbosacral pains and sacroiliitis as late sequela of severe pelvic inflammatory disease (PID) confirmed by laparoscopy or laparotomy. DESIGN: The sacroiliac joints were examined radiographically and scintigraphically to search for signs of reactive sacroiliitis. SETTING: Department of Obstetrics and Gynecology, Hospital General Virgen de las Nieves, Granada, Spain. PATIENTS: Thirty-five out of 70 women admitted with severe clinical symptoms of PID during a five-year period. PID was confirmed by laparoscopy or laparotomy. MEASUREMENTS: The sacroiliac joints were examined radiographically, and bone scintigraphic studies of the pelvic girdle were performed with 99technetium labelled pyrophosphate. RESULTS: Twenty out of 35 patients reported lumbosacral pain. The bone scintigraphic findings were positive for sacroiliitis in 18 out of 33 patients (54.6%), and the radiographic findings were positive in 11 women (33.3%). CONCLUSIONS: Patients with previous severe clinical PID complaining of lumbosacral pains may be offered a bone scintigraphy, a sensitive procedure using low-dose radiation, to search for early signs of reactive sacroiliitis.

Arthritis↗
PubMedDate not supplied

Changes in walking mechanics associated with wearing an intertrochanteric support belt.

This study assesses changes in the mechanics of walking for sacroiliac joint patients when: a) wearing an intertrochanteric support belt, b) wearing an intertrochanteric support belt in a placebo position and c) not wearing a support belt at all. The mechanics of walking were assessed by measuring the ground reaction forces during the support phase of gait using a force-platform. The results obtained did not show clear differences between the walking patterns of three experimental situations; however, some tendencies were observed which led to the speculation that the intertrochanteric support belt may restrict motion in the sacroiliac joint.

Biomechanical Phenomena↗
PubMed1984

Pyogenic sacroiliitis. An absolute indication for computerized tomographic scanning.

Pyogenic sacroiliitis (PSI) resulted from direct injection of a foreign substance, pumice, in a 32-year-old woman and was complicated by iliopsoas abscess. The symptoms of PSI are unspecific, and similar complaints may accompany such conditions as herniated disc and arthritis. Results of physical examination may be misleading, especially if movements that stress the sacroiliac joint are omitted. Early roentgenograms are normal and rarely aid in the diagnosis. Scintiscanning with gallium and technetium may indicate an inflammatory pelvic focus. These methods lack specificity, however, and may underestimate the extent of disease. The computerized tomographic (CT) scan was effective in detecting interosseous gas with an associated soft tissue abscess. It also proved invaluable in precisely delineating the location and extent of the lesion in and around the sacroiliac joint, facilitating use of the most expeditious surgical approach. Through follow-up CT studies the course and end results of therapy can be objectively determined.

Abscess↗
PubMed2004

[Grading sacroiliitis with emphasis on MRT-imaging].

Cross-sectional imaging techniques play a decisive role in identification, localization, and characterization of alterations in the sacroiliac joint during the early stage of seronegative spondylarthropathy (SpA). Although several studies showed that the diagnostic capabilities of MRI and CT are superior to those of conventional radiography, they have not yet become established and accepted as methods for evaluating the grade of ankylosing spondylitis (AS) in contrast to conventional radiography. The lack of acceptance for MRI and/or CT methods for evaluating and grading changes in the sacroiliac joint makes it difficult to include the results of these procedures in classifying the grade of SpA. Moreover, grading the changes in the sacroilac joint in SpA with a method more sensitive than conventional radiography will be of prime importance in assessing treatment, e.g., the efficacy of new biological therapeutic agents directed against the tumor necrosis factor-alpha (TNF-alpha). An overview of the available grading methods is provided and MRI and CT techniques are presented.

Diagnosis, Differential↗
PubMed2005

Tuberculous sacroiliitis. A case report and review of the literature.

BACKGROUND: Infections of the musculoskeletal system are tuberculous in nature in 1-5% of cases. The sacroiliac joint is involved in 3-9.7%. We describe the case of a 32-year-old man with tuberculous sacroiliitis presented as a growing mass on the lateral aspect of his right proximal and mid-thigh. Open biopsy, histology, cultures and PCR established the diagnosis of tuberculosis. RESULTS: After surgical drainage of the abscess, the patient was administrated a triple antibiotic regimen for 12 months. Seven years postoperatively, the patient is disease-free with no functional limitation. This case report highlights the importance of continued awareness for early detection and treatment of a tuberculous sacroiliac joint infection.

Adult↗
PubMedDate not supplied

Pyogenic sacroiliitis in children: report of three cases.

We report three children who were treated for pyogenic infection of the sacroiliac joint. The disease, usually present in late childhood or adolescence, is uncommon and difficult to assess so that the diagnosis is usually delayed. The three patients were two boys and one girl, aged 14, 15 and 12 years, respectively. A detailed history and physical examination are very important for establishment of the diagnosis. All the three cases presented with typical clinical triad of fever, limping gait and buttock pain. Pelvis compression maneuver, which directly stresses the sacroiliac joint, may aggravate the joint pain and suggest this diagnosis. On physical examination, this test is positive in all our cases. Nuclear scintigraphy is useful for localization of early lesions. For detecting abscess formation, magnetic resonance imaging was performed in two cases and computed tomography in one. In one of the patients, computed tomography failed to demonstrate an iliopsoas abscess formation, which was proved by magnetic resonance imaging later. Staphylococcus aureus was isolated from blood in all three patients. Prompt antibiotic therapy reduces complication and operation is rarely needed. With rapid and appropriate medical treatment, all our patients recovered without an sequelae.

Adolescent↗
PubMed1987

Recognizing specific characteristics of nonspecific low back pain.

A retrospective review of 1293 cases of low back pain treated over a 12-year period revealed that sacroiliac joint syndrome and posterior joint syndromes were the most common referred-pain syndromes, whereas herniated nucleus pulposus and lateral spinal stenosis were the most common nerve root compression lesions. Referred pain syndromes occur nearly twice as often and frequently mimic the clinical presentation of nerve root compression syndromes. Combined lesions occurred in 33.5% of cases. Lateral spinal stenosis and herniated nucleus pulposus coexisted in 17.7%. In 30% of the cases of spondylolisthesis, the radiographic findings were incidental and the source of pain was the sacroiliac joint. Distinguishing radicular from referred pain, recognition of coexisting lesions, and correlation of diagnostic imaging with the overall clinical presentation facilities formulation of a rational plan of therapy. The above-outlined approach to managing low back pain evolved over a 12-year period. Designed to establish a specific diagnosis, it should yield excellent or good results in 84% of patients.

Back Pain↗
PubMed2005

Evaluation of joints using Tc 99m-MDP bone scintigraphy in patients with familial Mediterranean fever: should bone scans be used for diagnosis and follow-up?

Familial Mediterranean fever (FMF) is an autosomal recessively-inherited disorder typically manifested by recurrent attacks of fever and polyserositis. The articular disease occurs in 50-70% of patients. Bone scintigraphy is more sensitive in the diagnosis of arthritis than clinical examination or conventional radiological imaging, allowing earlier diagnosis through the visualization of disease in multiple sites. To assess joint involvements in FMF patients with or without joint symptoms, bone scintigraphy was performed in 36 patients with FMF and in 25 controls. There was arthritis in 72% of patients. Of these, 65% knee, 42% ankle, 50% sacroiliac, 8% elbow, 8% wrist, 4% sternoclavicular and 4% hip involvements were found. The sacroiliac joints with sacroiliac index higher than 1.34 were diagnosed as sacroiliitis, which was higher than 2 SD of normal. FMF is frequently associated with joint disease such as knee and ankle arthritis and sacroiliitis. This high incidence of sacroiliitis in our study has not been previously reported. This difference could be explained by the different methodology used for the screening of the joints. Thus, we recommend that bone scintigraphy can be used in patients with FMF to determine the presence of arthritis, especially in sacroiliac joints, even asymptomatic.

Adolescent↗
PubMed2001

Evaluation of the bony pelvis in classic bladder exstrophy by using 3D-CT: further insights.

OBJECTIVES: To provide a complete look at the bony pelvis in children with classic bladder exstrophy: dimensions, orientation, and relationships. METHODS: Three-dimensional computed tomography was used in 6 boys and 1 girl, 5 of whom underwent primary closure and 2 who underwent reclosure at 4 and 8 months. These exstrophy pelves (intrapelvic angles and osseous dimensions) were compared with 26 age and sex-matched controls. RESULTS: The iliac wing angle was 11.4 degrees larger in the classic bladder exstrophy cases. The sacroiliac joint angle was 9.9 degrees more externally rotated in the exstrophy cases. The pelvis was rotated 14.7 degrees in the superoinferior plane in the exstrophy cases. The mean pubic diastasis was 4.2 cm (0.6 cm in controls). The inter-triradiate distance in the patients with classic bladder exstrophy averaged 6.0 cm (4.2 cm in controls). CONCLUSIONS: These new findings provide a better understanding of the bony pelvis, especially its posterior portion, in patients with classic bladder exstrophy. The results of this study revealed the orientation of the sacroiliac joints to be more externally oriented than previously thought and the pelvis to be rotated inferiorly, a previously unknown observation. Both of these factors will be important in the planning of newer osteotomies and pelvic reconstruction.

Adult↗
PubMed1997

Stability of open-book pelvic fractures using a new biomechanical model of single-limb stance.

OBJECTIVE: A new biomechanical model of single-limb stance was developed to test the stability of intact, injured, and internally fixed pelves. DESIGN: Single-limb stance was simulated by applying muscle forces and body mass loading to cadaver pelves. We created a rotationally unstable "open-book" pelvic injury in nine embalmed pelves by dividing the ligaments of the pubic symphysis, pelvic floor, and anterior and interosseus sacroiliac joint. All pelves were devoid of gross structural abnormalities. INTERVENTION: Two methods of internal fixation of the pubis symphysis were compared: (a) a curved six-hole 3.5-millimeter reconstruction plate across the superior pubic symphysis, and (b) the same six-hole 3.5-millimeter reconstruction plate plus a perpendicularly oriented four-hole 3.5-millimeter reconstruction plate placed across the anterior symphysis. MAIN OUTCOME MEASUREMENTS: We measured vertical shear displacement at the public symphysis and horizontal displacement at the anterior sacroiliac joint. The results for the injured and fixed specimens were compared with each other and with the results for the intact specimens. RESULTS: The injured unfixed specimens showed marked instability that was prevented by both methods of fixation of the pubic symphysis. No significant differences could be demonstrated between single and double plating of the disrupted pubic symphysis when using this single-limb stance model. CONCLUSION: This model of single-limb stance suggests that a single symphyseal plate across the pubic symphysis can stabilize the open-book injury under short-term quasi-static loads.

Aged↗
PubMed1997

[Comparison of radiographs and magnetic resonance imaging in the detection of sacroiliitis in patients with ankylosing spondylitis].

The role of radiography and magnetic resonance (MR) imaging in the detection of sacroiliitis in patients with ankylosing spondylitis (AS) was compared in this study. Thirty-six sacroiliac joints in 18 patients with AS were examined with radiography and MR scan. MR images were performed with the sequence of the coronal T1 weighted image, T2 weighted image, and T2* weighted image. Images of all patients were graded according to the modified New York criteria. Statistical results showed that significant differences existed between MR imaging and radiography in the detection of sacroiliitis (P < 0.01). MR imaging was superior to plain film radiographs in visualising erosions (P < 0.01). Radiography cannot reveal the cartilage changes and bone marrow oedema, which can only be seen in MR images. In the absence of radiographic changes, MR imaging can provide objective and complementary findings of sacroiliitis in patients with AS. Due to the ability to image cartilage changes and bone marrow oedema directly, MR imaging may be particularly useful in early diagnosis of sacroiliitis. For patients without any changes on sacroiliac joint radiograph, further examination of MR imaging may be advisable.

Adolescent↗
PubMed1990

Brucella arthritis: a study of 96 cases in Kuwait.

Of 400 patients with brucellosis, 104 (26%) had arthritis, of whom 96 could be followed up. The systemic disease in the 96 patients was acute in 54 (56%), subacute in 24 (25%), and chronic in 18 (19%). The main presenting symptoms were joint pain, fever, sweating, and easy fatigability. The joints most commonly affected were the sacroiliac joint (26%) and knee (25%) followed by hip (18%) and spine (8%). There was no particular pattern of joint affection in relation to age. Joint effusion occurred in 32/104 (30%) of cases, predominantly (94%) in the acute group. Culture of synovial fluid was negative in all, and analysis of synovial fluid for cellular profile, glucose, and protein content was not particularly helpful in diagnosis. Plain radiographs did not show major pathological changes. Among the laboratory tests, including haematological and liver function tests, the brucella enzyme linked immunosorbent assay (ELISA) was the most reliable in the diagnosis of disease, using serum and synovial fluid specimens. Treatment with a combination of streptomycin plus tetracyclines or rifampicin resulted in an excellent cure rate and resolution of arthritis without sequelae or mortality. Thus brucellosis should be considered in the differential diagnosis of arthritis, especially in areas in which the disease is endemic.

Arthritis, Infectious↗
PubMed2001

Electromyographic reflex responses to mechanical force, manually assisted spinal manipulative therapy.

STUDY DESIGN: Surface electromyographic reflex responses associated with mechanical force, manually assisted (MFMA) spinal manipulative therapy were analyzed in this prospective clinical investigation of 20 consecutive patients with low back pain. OBJECTIVES: To characterize and determine the magnitude of electromyographic reflex responses in human paraspinal muscles during high loading rate mechanical force, manually assisted spinal manipulative therapy of the thoracolumbar spine and sacroiliac joints. SUMMARY OF BACKGROUND DATA: Spinal manipulative therapy has been investigated for its effectiveness in the treatment of patients with low back pain, but its physiologic mechanisms are not well understood. Noteworthy is the fact that spinal manipulative therapy has been demonstrated to produce consistent reflex responses in the back musculature; however, no study has examined the extent of reflex responses in patients with low back pain. METHODS: Twenty patients (10 male and 10 female, mean age 43.0 years) underwent standard physical examination on presentation to an outpatient chiropractic clinic. After repeated isometric trunk extension strength tests, short duration (<5 msec), localized posteroanterior manipulative thrusts were delivered to the sacroiliac joints, and L5, L4, L2, T12, and T8 spinous processes and transverse processes. Surface, linear-enveloped electromyographic (sEMG) recordings were obtained from electrodes located bilaterally over the L5 and L3 erector spinae musculature. Force-time and sEMG time histories were recorded simultaneously to quantify the association between spinal manipulative therapy mechanical and electromyographic response. A total of 1600 sEMG recordings were analyzed from 20 spinal manipulative therapy treatments, and comparisons were made between segmental level, segmental contact point (spinous vs. transverse processes), and magnitude of the reflex response (peak-peak [p-p] ratio and relative mean sEMG). Positive sEMG responses were defined as >2.5 p-p baseline sEMG output (>3.5% relative mean sEMG output). SEMG threshold was further assessed for correlation of patient self-reported pain and disability. RESULTS: Consistent, but relatively localized, reflex responses occurred in response to the localized, brief duration MFMA thrusts delivered to the thoracolumbar spine and SI joints. The time to peak tension (sEMG magnitude) ranged from 50 to 200 msec, and the reflex response times ranged from 2 to 4 msec, the latter consistent with intraspinal conduction times. Overall, the 20 treatments produced systematic and significantly different L5 and L3 sEMG responses, particularly for thrusts delivered to the lumbosacral spine. Thrusts applied over the transverse processes produced more positive sEMG responses (25.4%) in comparison with thrusts applied over the spinous processes (20.6%). Left side thrusts and right side thrusts over the transverse processes elicited positive contralateral L5 and L3 sEMG responses. When the data were examined across both treatment level and electrode site (L5 or L3, L or R), 95% of patients showed positive sEMG response to MFMA thrusts. Patients with frequent to constant low back pain symptoms tended to have a more marked sEMG response in comparison with patients with occasional to intermittent low back pain. CONCLUSIONS: This is the first study demonstrating neuromuscular reflex responses associated with MFMA spinal manipulative therapy in patients with low back pain. Noteworthy was the finding that such mechanical stimulation of both the paraspinal musculature (transverse processes) and spinous processes produced consistent, generally localized sEMG responses. Identification of neuromuscular characteristics, together with a comprehensive assessment of patient clinical status, may provide for clarification of the significance of spinal manipulative therapy in eliciting putative conservative therapeutic benefits in patients with pain of musculoskeletal origin.

Adolescent↗
PubMed2002

Sacral and iliac articular cartilage thickness and cellularity: relationship to subchondral bone end-plate thickness and cancellous bone density.

OBJECTIVES: To measure the thickness and cellularity of adult human sacral and iliac articular cartilages and the thickness and density of the subchondral bones. METHODS: The right sacroiliac joints of 15 adult patients were examined post-mortem. HOME (Highly Optimized Microscope Environment) microscopy was used to measure articular cartilage and subchondral bone end-plate thickness. Conventional morphometric techniques were employed to estimate cartilage cellularity and cancellous bone density. RESULTS: Sacral articular cartilage was thicker than iliac (1.81 vs 0.80 mm, P<0.001). Iliac cartilage cell density in all zones was higher than sacral. The overall mean was 31.19 x 10(-3) vs. 23.23 x 10(-3)/mm(3), P<0.001. Superficial zones contained more cells than middle and deep zones but there were large differences between the cell numbers of the middle and deep zones of both sacral and iliac cartilages. Iliac subchondral bone end-plates were thicker than sacral (0.36 vs 0.23 mm, P<0.001). The thickness of these plates was related inversely to that of the overlying articular cartilages. Iliac subchondral cancellous bone was twice as dense as sacral (22.07 vs. 12.05%, P<0.001), a ratio recognized anteriorly, centrally and posteriorly. CONCLUSIONS: Adult human sacral cartilage is thick and of low cell density. It rests upon a thin bone end-plate supported by porous, cancellous bone. Iliac cartilage and bone display the converse proportions. The identification of these variables may assist understanding of normal sacroiliac joint function and the interpretation of tissue changes in the spondylarthropathies.

Adult↗
PubMed1986

Perfluoroctylbromide as a contrast agent for computed tomographic imaging of septic and aseptic arthritis.

Perfluoroctylbromide (PFOB), a perfluorocarbon macrophage-labeling contrast agent, was applied to computed tomographic imaging of septic and aseptic arthritis models in rabbits. Marked enhancement of induced pyarthrosis was observed in both the knee and the sacroiliac joint. Moderate enhancement was noted in tetracycline-induced synovitis of the knee. Sterile synovitis of the sacroiliac joint and simple knee joint effusion showed no enhancement. These results suggest that PFOB is a useful contrast medium for the diagnosis of and distinction between septic and sterile arthritis.

Animals↗