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Acute isolated dorsal midtarsal (Chopart's) dislocation: a case report
Kishore Puthezhath1, Ravikumar Veluthedath, Chathoth M Kumaran
1Department of Orthopaedics, Government Medical College, Calicut, India. drkmenon@gmail.com
Summary
Isolated dorsal midtarsal (Chopart's) joint dislocation is a rare injury. This case highlights an unusual mechanism and discusses treatment outcomes, suggesting primary arthrodesis may be beneficial.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Foot and Ankle Surgery
Background:
- Isolated midtarsal (Chopart's) joint dislocations are infrequent injuries.
- These injuries are often linked to osteochondral fractures.
Observation:
- A rare case of isolated dorsal midtarsal dislocation is presented.
- The injury mechanism involved forefoot plantarflexion with a neutral or dorsiflexed ankle.
Findings:
- The patient underwent open reduction, ligamentous repair, and Kirschner wire fixation.
- At 96 weeks post-treatment, the patient ambulated independently but developed post-traumatic degenerative changes.
- Primary arthrodesis of the calcaneocuboid joint might have yielded better long-term results.
Implications:
- Understanding the unusual mechanism of dorsal midtarsal dislocation is crucial for diagnosis and treatment.
- This case suggests considering primary arthrodesis for calcaneocuboid joint involvement in similar injuries.
- Further research into optimal surgical management for isolated Chopart's dislocations is warranted.