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[Dynamic palmar instability of the ulnar head]
C U Schulz1, C Pellengahr, H Anetzberger
1Orthopädische Klinik der Ludwig-Maximilians-Universität München, Germany. christoph.schulz@helios.med.uni-muenchen.de
Handchirurgie, Mikrochirurgie, Plastische Chirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Handchirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Mikrochirurgie Der Peripheren Nerven Und Gefasse : Organ Der V
|September 10, 2003
Summary
Chronic palmar instability of the distal ulnar head, often linked to triangular fibrocartilage complex tears, presents diagnostic and treatment challenges. Early diagnosis is crucial to prevent advanced joint degeneration and potentially avoid complex salvage procedures.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Hand and Wrist Surgery
Background:
- Dynamic palmar instability of the distal ulnar head is a persistent clinical challenge.
- The triangular fibrocartilage complex (TFCC) tear is a common cause of such instability.
- Predisposing factors may include prior radius fractures and general capsulo-ligamentous laxity.
Observation:
- A case study details chronic palmar instability of the ulnar head following a TFCC tear.
- The patient had a history of childhood radius fracture with dorsal angulation and generalized laxity.
- Secondary arthrosis developed, necessitating a salvage procedure.
Findings:
- The chosen treatment involved arthrodesis of the distal radioulnar joint and TFCC stabilization.
- The patient achieved pain relief and mobility post-surgery.
- A significant drawback was the reported loss of power in supination.
Implications:
- This case highlights the diagnostic difficulties in managing distal ulnar head instability.
- Delayed diagnosis can lead to secondary arthrosis and the need for complex, potentially function-limiting, salvage procedures.
- Emphasizes the importance of timely and accurate diagnosis for optimal patient outcomes in TFCC-related instability.