Abstract
After an injury to the right ring finger, a 44-year-old woman experienced pain in the distal interphalangeal joint. A subcutaneous mucoid cyst was noted near the joint. The x-ray films revealed no fracture but a narrowing of the joint space and a well-defined radiolucent area in the ulnar condyle of the middle phalanx. The biopsy specimen of this area excluded infection or tumor and revealed active osteogenic remodelling. These elements permitted a diagnosis of distal interphalangeal osteoarthritis that was associated with highly localized Sudeck's dystrophy (also called " parcellar algodystrophy"). This unusual case suggests the possibility that this dystrophy might be favored by an "osteoarthritic terrain" and might also play a role in the evolution of the osteoarthritis.
Published Version
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