J Wrist Surg 2016; 05(03): 233-235
DOI: 10.1055/s-0036-1579548
Case Report
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Bilateral Complete Osseous Coalition of the Capitate and Trapezoid

Alexander B. Christ
1  Hospital for Special Surgery, New York, New York
Andrew S. Maertens
2  School of Medicine, University of Washington, Seattle, Washington
Andrew J. Weiland
1  Hospital for Special Surgery, New York, New York
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20. November 2015

20. Januar 2016

23. Februar 2016 (online)


Background Isolated capitate–trapezoid coalition is a rare form of carpal coalition with few cases described in the literature and a little insight as to how it should be addressed clinically.

Case Description We present a case of bilateral, a complete osseous carpal coalition between capitate and trapezoid discovered in the setting of atraumatic, symptomatic scapholunate dissociation in a 59-year-old, right-handed mechanic.

Literature Review Published reports of capitate–trapezoid coalition are rare, and there is no consensus as to whether this abnormality is a symptomatic pathology or incidental finding. Most reports describe the finding, but do not recommend a course of treatment; several recommend surgery, but the patient declined or it was not mentioned whether it was performed.

Clinical Relevance Capitate–trapezoid coalition is a rare condition that may present symptomatically or may be found incidentally. Reports are scant, and there are no guidelines for how to address these clinically. We present the first bilateral case report of capitate–trapezoid coalition confirmed with cross-sectional imaging and present a treatment algorithm.


All the work related to this study was performed at the Hospital for Special Surgery, New York, NY.