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Thumb Hypoplasia 755.28

 

synonyms:

Thumb Hypoplasia ICD-9

  • 755.28 longitudinal deficiency, hand
  • 759.9 other and unspecified congenital anomalies

Thumb Hypoplasia Etiology / Epidemiology / Natural History

  • Often bilateral
  • Male = female

Thumb Hypoplasia Anatomy

Thumb Hypoplasia Clinical Evaluation

Thumb Hypoplasia Xray / Diagnositc Tests

Thumb Hypoplasia Classification / Treatment

  • Modified Blauth Classification
  • Type I: thumbs slightly smaller than normal, no functional limitation. Treatment: observation.
  • Type II: Absence of thenar muscles. Treatment = web space deepening, MCP joint stabilization, opponensplasty.
  • Type III: lack both intrinsic and extrnisci motor function and the thumb metacaarpal is underdeveloped
    -IIIA= stable carpometacarpal joint. Treatment = web space deepening, MCP joint stabilization, opponensplasty.
    -IIIB= unstable/absent carpometacarpal joint. Treatment = thumb ablation and index pollicization.
  • Type IV: floating thumb. Treatment = thumb ablation and index pollicization.
  • Type V: absent thumb. Treatment = thumb ablation and index pollicization.

Thumb Hypoplasia Associated Injuries / Differential Diagnosis

  • Holt-Oram syndrome
  • Fanconi's anemia
  • Thrombocytopenia-absent radius
  • VACTERRL

Thumb Hypoplasia Complications

Thumb Hypoplasia Follow-up Care

Thumb Hypoplasia Review References

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