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Intercarpal Joints

articulationes intercarpales

The intercarpal joints are the small articulations between adjacent carpal bones, linked by interosseous, dorsal, and palmar intercarpal ligaments. The midcarpal joint between the proximal and distal carpal rows is the largest intercarpal articulation and contributes substantially to total wrist motion. The scapholunate and lunotriquetral joints within the proximal row are the most clinically significant because their ligament disruptions produce carpal instability and progressive wrist arthritis.

Region: Hand & Wrist

Clinical Relevance

Clinical Notes

Midcarpal instability produces a painful clunk during ulnar deviation of the wrist as the proximal row snaps from a flexed to an extended position through the midcarpal joint — the catch-up clunk sign. It occurs from laxity of the palmar midcarpal ligaments and is managed with physiotherapy, splinting, or dorsal capsulodesis for severe cases.

Pathology

Common Injuries & Conditions

Midcarpal Instability

Lax palmar intercarpal ligaments producing the painful catch-up clunk during ulnar wrist deviation, managed with proprioceptive training, splinting, or surgical capsulodesis.