Microsurgical Reconstruction After Unplanned Resection of the Low-grade Fibromyxoid Sarcoma at the Thumb Base: A Case Report
Microsurgical Reconstruction After Unplanned Resection of the Low-grade Fibromyxoid Sarcoma at the Thumb Base: A Case Report

Microsurgical Reconstruction After Unplanned Resection of the Low-grade Fibromyxoid Sarcoma at the Thumb Base: A Case Report

JBJS Case Connect. 2025 Jul 10;15(3). doi: 10.2106/JBJS.CC.25.00140. eCollection 2025 Jul 1.

ABSTRACT

CASE: A 6-year-old boy presented with a low-grade fibromyxoid sarcoma located at the base of the thumb following an unplanned resection. A wide resection was performed, including removal of the proximal first metacarpal, trapezium, thenar muscles, and thumb tendons. Reconstruction was performed using a parascapular osteocutaneous flap to achieve stable thumb opposition position, combined with free tendon grafts to restore thumb interphalangeal and metacarpophalangeal joint motion. At 3 years postoperatively, the patient remains disease-free and can use his thumb without difficulty.

CONCLUSION: This 1-stage microsurgical functional reconstruction demonstrates satisfactory outcomes in cases of sarcoma involving the thumb base.

PMID:40638761 | DOI:10.2106/JBJS.CC.25.00140