Ulnocarpal abutment syndrome
Alerts and Notices
Synopsis
Causes / typical injury mechanism: Ulnocarpal abutment syndrome, also known as ulnar impaction syndrome and ulnar abutment syndrome, is a chronic degenerative process secondary to compressive overload and shear forces at the articular surface of the ulnocarpal joint.Classic history and presentation: Patients typically present with ulnar-sided wrist pain. Pain occurs with active and passive ulnar deviation of the wrist as well as with axial loading of the wrist.
Risk factors:
- History of trauma
- Distal radius fracture
- Radial head fracture with resulting shortening of radius
- Scapholunate dislocation
- Triangular fibrocartilage complex (TFCC) tears
- Lunotriquetral (LT) ligament tears
Codes
ICD10CM:M24.839 – Other specific joint derangements of unspecified wrist, not elsewhere classified
SNOMEDCT:
472328003 – Ulnar impaction syndrome
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Extensor carpi ulnaris (ECU) tendonitis
- Lunotriquetral tears
- TFCC tears
- Distal radioulnar joint (DRUJ) arthritis
- Pisotriquetral arthritis
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Management Pearls
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Therapy
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References
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Last Reviewed:11/14/2021
Last Updated:11/21/2021
Last Updated:11/21/2021