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Case Reports
. 2017 Jul;51(4):352-354.
doi: 10.1016/j.aott.2017.03.014. Epub 2017 Apr 27.

Volar dislocation of the metacarpophalangeal joint of the thumb: A case report

Serdar Yüksel  1 , Oktay Adanır  2 , Ozan Beytemur  2 , Mehmet Akif Gülec  2
Affiliations
Case Reports

Volar dislocation of the metacarpophalangeal joint of the thumb: A case report

Serdar Yüksel et al. Acta Orthop Traumatol Turc. 2017 Jul.

Abstract

We present an 18 year-old patient with a volar dislocation of the metacarpophalangeal joint of the thumb. Open reduction was performed through a dorsal incision. Because of the soft tissue interposition such as dorsal capsule, volar plate, dislocated extensor pollicis longus and brevis tendons, ruptured ulnar collateral ligament; open reduction, soft tissue and ligament repair are recommended for this type of thumb dislocations.

Keywords: Metacarpophalangeal joint; Open reduction; Thumb; Ulnar collateral ligament; Volar dislocation.

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Figures

Fig. 1
Fig. 1
X-ray demonstrating a rare volar metacarpophalangeal joint dislocation.
Fig. 2
Fig. 2
The intraoperative photograph of complex volar dislocation of the metacarpophalangeal joint of the thumb. The metacarpal head herniated through a tear in the dorsal capsule. The extensor pollicis longus and extensor pollicis brevis tendons cannot be seen, they subluxed volar and ulnarly. The ruptured stump of the ulnar collateral ligament is seen.
Fig. 3
Fig. 3
The repaired dorsal capsule, ulnar collateral ligament and adductor aponeurosis are seen before skin closure.
Fig. 4
Fig. 4
X-ray demonstrating reduction of the metacarpophalangeal joint of the thumb and immobilization with thumb spica cast after open reduction.
See this image and copyright information in PMC

References

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