Kaplan Lesion in a 10-Year-Old Boy: A Case Report

Area of Science:

• Orthopedic Surgery
• Pediatric Orthopedics
• Hand Surgery

Background:

• Kaplan's lesion is a rare, complex metacarpophalangeal (MCP) joint dislocation in children.
• This condition often necessitates surgical intervention for successful treatment.
• Potential complications include joint stiffness and growth arrest if not managed properly.

Purpose of the Study:

• To report a case of pediatric Kaplan's lesion treated with a dorsal approach.
• To highlight the effectiveness and safety of the dorsal approach in managing complex MCP joint dislocations in children.
• To emphasize the importance of timely surgical intervention for optimal outcomes.

Main Methods:

• A 10-year-old boy with a left index finger MCP dislocation after trauma underwent surgical treatment.
• Open reduction via a dorsal approach was performed after failed closed reduction.
• Intraoperative findings included volar plate interposition and cartilage fracture.

Main Results:

• Postoperative immobilization and physiotherapy led to the restoration of full joint motion at six months.
• The dorsal approach provided effective visualization and minimized neurovascular risk.
• Successful management avoided complications such as stiffness or growth arrest.

Conclusions:

• Kaplan's lesion in children requires careful management, with surgical intervention often being necessary.
• The dorsal approach is a safe and effective method for open reduction in complex pediatric MCP dislocations.
• Timely and appropriate surgical treatment is crucial for achieving successful functional outcomes.