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Degenerative joint abnormalities in patients with paraplegia of duration greater than 20 years.

Radiographs and medical and surgical records of 51 patients following spinal injury have been reviewed. All the patients had been paraplegic for 20 years or more at the time of the survey. The reason for the survey was to assess the incidence of degenerative change of the hips, sacroiliac and shoulder joints in patients following spinal injury. Our review indicates that the number of paraplegic patients who develop degeneration of hip and sacroiliac joint changes is less significant than has been previously reported. Analysis of our figures has revealed certain important associations which predispose these patients to joint degeneration. The associations (anatomical level of injury, urinary tract infections, and the level of the patients' activity) with joint degeneration are described.

Female↗

Ventral sacroiliac ligament. Anatomic and pathologic considerations.

RATIONALE AND OBJECTIVES: The ventral sacroiliac ligament (VSL), which bridges the sacroiliac (SI) joint anteriorly, has been described as an important stabilizing structure of the joint, but no data exist regarding its assessment with routine and advanced imaging methods. The authors determine the imaging appearance of the normal and abnormal VSL using close anatomic-histologic-imaging correlation. METHODS: Eight and 10 cadaveric SI joints were examined with magnetic resonance imaging in axial and coronal planes, respectively; and in four computed tomography scanning in both planes was obtained. Anatomic sectioning with histologic correlation at levels corresponding to those of imaging planes was performed. Representative examples of diseases that produce abnormalities of the VSL and connective tissue about the SI joint were reviewed. RESULTS: Magnetic resonance images showed the VSL-anterior capsular complex as a hypointense, linear, or minimally curved structure of approximately 2 mm thickness traversing the SI joint anteriorly. The VSL could not be separated from the anterior joint capsule by imaging studies, but such differentiation by histology could be determined based upon the orientation of its collagen fibers. Any disease process that affects the ligament or the site of ligamentous attachment to bone produces characteristic imaging alterations.

Aged↗