J Korean Fract Soc.  2009 Apr;22(2):110-113. 10.12671/jkfs.2009.22.2.110.

Irreducible Dislocation of the Interphalangeal Joint of the Great Toe with Lateral Collateral Ligament Entrapment: A Case Report

• Chung DW
• Jeong BO

• KMID: 1470024
• DOI: http://doi.org/10.12671/jkfs.2009.22.2.110

Abstract

Dislocations of the interphalangeal joint of the great toe that are irreducible are very rare. Invagination of the plantar plate or the sesamoid bone into the IP joint, which prevents reduction. To our knowledge, however, dislocations of the IP joint of the great toe that were irreducible because of lateral collateral ligament entrapment, not invagination of the plantar plate or the sesamoid bone, have not been reported by any English literature. We report a 29-year-old ballet dancer who sustained an irreducible dislocation of the interphalangeal joint of the great toe owing to lateral collateral ligament entrapment.

Keyword

Great toe; Interphalangeal joint dislocation; Lateral collateral ligament entrapment

MeSH Terms

Adult
Collateral Ligaments
Dislocations
Humans
Joints
Sesamoid Bones
Toes

Figure

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  Fig. 1 An anteriorposterior and a lateral roentgenogram showing the markedly widened interphalangeal joint space and a mediodorsal dislocation of the distal phalanx. But the sesamoid bone of the plantar side was in its normal position.

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  Fig. 2 Magnetic resonance (MR) images. (A) T1-weighted (TR/TE, 503/20), and (B) T2-weighted (TR/TE, 2573/100) axial images showing a complete discontinuity of the lateral collateral ligament and entrapment of the distal part of the ruptured ligament into the interphalageal joint of the great toe (white arrow).

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  Fig. 3 Satisfactory open reduction of the dislocated interphalageal joint. The k-wire was used for fixation of the interphalageal joint of the great toe.

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  Fig. 4 An anteriorposterior and a lateral roentgenogram showing congruous joint and anatomic reduction 6 months after surgery.

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