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[Triphalangeal thumb].

Juan Manuel Fernández-Vázquez1, Josef Schenk-Palao, Justino Fernández-Palomo

  • 1Cirujano Ortopedista del American British Cowdray Medical Center, IAP, México DF, México. fernandezvazquez@yahoo.com

Cirugia Y Cirujanos
|February 27, 2004
PubMed
Summary

Triphalangeal thumb, a congenital abnormality, affects 1 in 25,000 births. Surgical treatment yielded excellent outcomes in 97% of patients, indicating effective management for this rare condition.

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Area of Science:

  • Orthopedics
  • Congenital Abnormalities
  • Pediatric Surgery

Background:

  • Triphalangeal thumb is a congenital hand anomaly.
  • Its incidence is reported as 1 in 25,000 births.
  • This condition involves an extra phalanx in the thumb.

Purpose of the Study:

  • To review surgical outcomes for triphalangeal thumb.
  • To evaluate the effectiveness of surgical interventions.
  • To analyze patient data based on classification systems.

Main Methods:

  • Retrospective review of 49 triphalangeal thumbs in 28 patients.
  • Data collected from multiple hospitals between 1971 and 1998.
  • Classification using the Dieter Buck-Gramcko system and Müller teratologic line.

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  • Surgical treatment and evaluation using the Cheng graduation scale.

    • Main Results:

    • A total of 21 patients (75%) presented with bilateral deformities.
    • Excellent surgical results were achieved in 48 patients (97%).
    • One patient (3%) had fair results, with no poor outcomes reported.

    Conclusions:

    • Surgical treatment for triphalangeal thumb demonstrates high success rates.
    • The Cheng graduation scale is effective for evaluating outcomes.
    • Effective management strategies exist for this congenital abnormality.