Reason: eval lunate History: potential Kienböck's? Eval cartilage n proximal capitate Multiple sequences are limited by patient motion artifact.LIGAMENTS: Although this examination is not protocoled for evaluation of the intrinsic ligaments of the wrist, there is heterogeneity and intermediate signal in intensity within the scapholunate and lunotriquetral ligaments which likely represent degeneration and perhaps degenerative tearing, however, no full-thickness tear is evident. TRIANGULAR FIBROCARTILAGE COMPLEX: There is a focal disruption of the volar aspect of the triangle fibrocartilage disc at the level of its insertion on the radius.TENDONS: The flexor and extensor tendons appear intact. There is a small amount of fluid within the tendon sheath of the extensor carpi radialis brevis and extensor carpi ulnaris which may reflect a very mild tenosynovitis. BONES: There is fragmentation of the lunate and decreased signal abnormality on T1 and T2-weighted images consistent with the patient's known history of avascular necrosis. There is increased bone marrow signal abnormality on fluid sensitive sequences within the scaphoid which may represent degenerative change. There is also increased bone marrow signal abnormality within the triquetrum with associated subchondral cyst formation likely degenerative in etiology. Note is made of increased bone marrow signal abnormality within the ulnar styloid which may be degenerative in etiology. There is a small amount of fluid within the distal radioulnar joint. There is a subchondral cyst within the capitate indicating degenerative changes. There is fraying of the articular cartilage about the lunocapitate articulation with partial thickness articular cartilage degeneration. There is subchondral cyst formation within the distal radius.ADDITIONAL
1. Fragmentation of the lunate and bone marrow signal abnormality consistent with the patient's history of avascular necrosis.2. Focal perforation of the triangular fibrocartilage at the level of its insertion on the radius. 3. Bone marrow signal abnormality within the scaphoid, lunate, triquetrum, ulnar styloid, distal radius, and capitate may be degenerative in etiology. There is partial-thickness articular cartilage degeneration affecting the lunocapitate articulation. Other findings as described above.