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Metacarpophalangeal Joint Dislocations Two Cases, Two Stories
1Department of Orthopaedics, TATA Main Hospital, Dhanbad, Jharkhand, India.
Journal of Orthopaedic Case Reports
|December 13, 2024
Summary
This study differentiates simple from complex metacarpophalangeal (MCP) joint dislocations, including Kaplan dislocations. It highlights distinct clinical presentations, radiographic findings, and management strategies for these hand injuries.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Traumatology
Background:
- Metacarpophalangeal (MCP) joint dislocations were first detailed by Kaplan et al. in 1957.
- Distinguishing between simple (closed reduction feasible) and complex (irreducible) MCP joint dislocations is crucial for appropriate management.
Observation:
- Two cases of MCP joint dislocations are presented to illustrate differences.
- Case 1: A young cricketer with a simple MCP dislocation treated successfully with closed reduction.
- Case 2: An elderly patient with a complex MCP dislocation (Kaplan dislocation) requiring open reduction, resulting in some residual stiffness.
Findings:
- Complex MCP dislocations, often termed Kaplan dislocations, present unique challenges compared to simple dislocations.
- Clinical appearance, radiographic evaluation, and treatment protocols differ significantly between simple and complex MCP joint injuries.
Implications:
- Understanding the distinct clinico-pathological patterns of MCP joint dislocations is essential for orthopedic surgeons.
- Open reduction techniques should be considered for appropriately indicated complex MCP joint dislocations to optimize outcomes.
