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Case Reports
. 2021 Dec 13;11(6):546-549.
doi: 10.1055/s-0041-1740137. eCollection 2022 Dec.

Bilateral STT Arthrodesis in a Young Patient with Occult Proximal Row Coalition

Rupert M H Wharton  1   2 , David Ahearne  2
Affiliations
Case Reports

Bilateral STT Arthrodesis in a Young Patient with Occult Proximal Row Coalition

Rupert M H Wharton et al. J Wrist Surg. .

Abstract

Background Carpal coalitions have an incidence of 0.1 to 1% in Caucasians and up to 8 to 9% in African populations. They rarely cause clinical problems requiring investigation or treatment, but are commonly identified on imaging obtained for other indications. Case Description We report a case of a 35-year-old male with progressive degenerative change of incomplete coalitions of the scaphotrapeziotrapezoid joint (STT) in the presence of bilateral complete osseous lunate-triquetral coalitions (Minnaar type 4). He was successfully treated with staged bilateral arthrodesis with excellent symptom resolution and preservation of function. Literature Review In patients with isolated STT coalition six reports of surgery exist, two of which were for arthrodesis. This is the first described case of STT arthrodesis in a patient with coexistent lunate-triquetral coalition. Clinical Relevance The STT arthrodesis remains a safe and effective treatment for STT pain even in cases of occult carpal coalition. Functional range of movement was well preserved. Level of evidence This is a Level V study.

Keywords: arthritis; arthrodesis; coalition; lunate–triquetral; scaphotrapeziotrapezoid joint.

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Conflict of interest statement

Conflict of Interest None declared.

Figures

Fig. 1
Fig. 1
( A ) Anteroposterior and oblique radiographs of the right wrist from the time of presentation. ( B ) Oblique radiograph of right wrist 3 years later. ( C , D ) Preoperative magnetic resonance imaging of left wrist and right wrist.
Fig. 2
Fig. 2
( A , B ) Postoperative radiographs of right wrist and left wrist.
See this image and copyright information in PMC

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