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Journal of Hand Surgery (European Volume)
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Collapsed Scaphoid Non-Union with Dorsal Intercalated Segment Instability and Avascular Necrosis Treated by Vascularised Wedge-Shaped Bone Graft and Fixation

M. HENRY

From the Hand and Wrist Center of Houston, Department of Orthopaedic Surgery, University of Texas, Houston, TX, USA

Correspondence: Mark Henry, MD, 1200 Binz #1200, Houston, TX 77004, USA. Tel.: +1 713 333 4477; fax: +1713 333 4478. E-mail:mhenry{at}houstonhand.com

Patients with the specific problem of a collapsed Nakamura volar type, scaphoid synovial pseudarthrosis with avascular necrosis on both magnetic resonance imaging and intraoperative inspection were studied to determine the ability of a trapezoidal wedge-shaped structural bone graft vascularised by the 1,2 intercompartmental supraretinacular artery to simultaneously achieve correction of the scaphoid dimension and a high union rate. Fifteen patients with this specific problem were followed for a mean of 32.1 months and achieved union in all cases at a mean of 11.5 weeks. Improvements were seen postoperatively in wrist flexion and extension, grip strength, degree of dorsal intercalated segment instability and degree of scaphoid collapse. Two complications relating to the fixation technique occurred. Although technically difficult, it is possible to achieve a high rate of union for scaphoid pseudarthrosis while correcting substantial collapse deformity by the use of a structural, wedge-shaped, vascularised bone graft.

Key Words: scaphoid • non-union • vascularised • bone graft • pseudarthrosis

Journal of Hand Surgery (European Volume), Vol. 32, No. 2, 148-154 (2007)
DOI: 10.1016/J.JHSB.2006.11.018
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