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Extensor tendon dislocation in cerebral palsy.

B C Nossaman1, G M Rayan

  • 1Orthopaedic Surgery Department, University of Oklahoma Health Sciences Center and Baptist Medical Center, Oklahoma City, USA.

Journal of Hand Surgery (Edinburgh, Scotland)
|June 18, 1999
PubMed
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Cerebral palsy can cause extensor tendon instability in the hand. Surgical release and tightening of sagittal bands corrected middle finger deformities in an 18-year-old patient.

Area of Science:

  • Orthopedic surgery
  • Hand surgery
  • Pediatric orthopedics

Background:

  • Cerebral palsy (CP) often presents with complex musculoskeletal deformities.
  • Extensor tendon instability is a challenging complication affecting hand function.

Observation:

  • An 18-year-old male with cerebral palsy exhibited middle finger deformities.
  • Specific issues included metacarpophalangeal joint flexion and ulnar extensor tendon dislocation.

Findings:

  • Surgical intervention involved releasing the ulnar sagittal band and tightening the radial sagittal band.
  • This procedure successfully centralized the extensor tendon.
  • Additional procedures included intrinsic release and extrinsic flexor muscle lengthening for complete correction.

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Implications:

  • This case highlights the biomechanical factors contributing to extensor tendon instability in cerebral palsy.
  • Effective surgical management can restore extensor mechanism function and improve hand dexterity.
  • Understanding the interplay of extrinsic and intrinsic muscles is crucial for treating these complex deformities.