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[An 8-finger hand with ulnar duplication (mirror image deformity)]
Handchirurgie, Mikrochirurgie, Plastische Chirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Handchirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Mikrochirurgie Der Peripheren Nerven Und Gefasse : Organ Der V
|November 1, 1985
Summary
This study details a rare congenital "mirror deformity" in a young boy, involving complex hand and arm malformations. Surgical interventions successfully reconstructed the hand and improved function, as confirmed by electromyography (EMG) studies.
Area of Science:
- Congenital Hand Surgery
- Pediatric Orthopedics
- Medical Imaging and Electrophysiology
Background:
- Congenital limb malformations present significant challenges in pediatric orthopedic care.
- Early and accurate diagnosis is crucial for effective surgical planning and intervention.
Observation:
- A four-year-old boy presented with a severe congenital "mirror deformity" of the upper extremity.
- This included radial aplasia, duplicated carpus and metacarpus, polydactyly (eight fingers), thumb aplasia, brachysyndactyly, and contractures at the elbow and wrist.
- Preoperative electromyography (EMG) revealed unusual nerve configurations, including dual ulnar nerves with median nerve cross-innervation.
Findings:
- Surgical reconstruction involved pollicisation, resection of hypoplastic digits, thenar muscle reconstruction, and correction of joint contractures.
- Postoperative EMG studies were conducted to assess the functional recovery and nerve reinnervation.
- The surgical approach aimed to improve hand function and address the complex anatomical abnormalities.
Implications:
- This case highlights the importance of tailored surgical strategies for complex congenital hand deformities.
- Understanding aberrant nerve pathways through EMG is vital for successful reconstructive surgery.
- Effective management can lead to improved functional outcomes in children with severe limb malformations.