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BILATERAL SCAPHOID NON-UNION.

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

Introduction: About 5–12 percent of scaphoid fractures are associated with other fractures, and approximately 1 percent of scaphoid fractures are bilateral.

Materials and Methods: Three hundred fifty patients sought treatment for established scaphoid non-union at the author’s department. All patients routinely underwent plain radiographs, taken with both hands in neutral position for preoperative measurement of scapholunate angle and scaphoid length. Unexpectedly however, radiological examination revealed a bilateral scaphoid Herbert type D2 pseudoarthrosis (24 waist) in 12 patients (5 females, 7 males with mean age 25 years, range 14 to 48). No patient was aware of the mechanism of controlateral injury or had previously complained of controlateral wrist pain. All patients received treatment for both sides. The scaphoid was exposed through a volar approach. The fracture was anatomically reduced and fixed with a Herbert screw. Iliac bone graft was used. Mean follow-up was 43 months (range, 25 to 68) using the modified Mayo wrist score.

Results: Fracture union was confirmed both clinically and radiographically and union rates were 96 percent. Mean union time was 7 months (range 4 to 12 months). Non-union occurred in 1 patient. According to the Mayo wrist score, excellent results were achieved in 17 cases, good in 6 and poor in 1.

Conclusion: Bilateral scaphoid pseudoarthrosis has a very rare incidence, and experience showed us that patients do not always complain of both sides. Routine pre-operative evaluation at our institution includes a set of comparative plain radiographs of the wrists and we strongly recommend this policy to avoid missing bilateral injuries.

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.