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Tendon entrapment in distal radius fractures
M Okazaki1, K Tazaki, T Nakamura
1Department of Orthopedic Surgery, School of Medicine, Keio University and Department of Orthopedic Surgery, Ogikubo Hospital, Tokyo, Japan. oka-masa@xb3.so-net.ne.jp
Tendon entrapment occurs in 1.3% of distal radius fractures. Extensor tendon entrapment is more common in palmarly displaced fractures, while flexor tendon entrapment is seen in dorsally angulated fractures.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Anatomy
Background:
- Distal radius fractures are common orthopedic injuries.
- Tendon entrapment is a potential complication, but its incidence and specific patterns are not well-defined.
Purpose of the Study:
- To determine the rate and clinical features of tendon entrapment in patients with distal radius fractures.
Main Methods:
- Retrospective review of 701 consecutive distal radius fractures treated at a single institution.
- Analysis of fracture type, displacement, and associated tendon entrapment.
Main Results:
- Tendon entrapment was identified in 1.3% of cases (9 out of 701).
- Eight extensor tendons and one flexor tendon were entrapped.
- Extensor tendon entrapment was associated with palmarly displaced (Smith type) or epiphyseal fractures.
- Flexor tendon entrapment occurred in dorsally angulated (Colles type) epiphyseal fractures.
Conclusions:
- Tendon entrapment is an uncommon but significant complication of distal radius fractures.
- The pattern of tendon entrapment (extensor vs. flexor) correlates with the fracture displacement and type.
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