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Lower limb lengthening by a modified Wagner technique.

J M Paterson1, C S Waller, A Catterall

  • 1Leg Equalisation Clinic, Royal National Orthopaedic Hospital, London, England.

Journal of Pediatric Orthopedics
|March 1, 1989
PubMed
Summary
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Wagner apparatus enabled satisfactory leg length gains in 50 patients undergoing femoral and tibial lengthening. Modifying the osteotomy and distraction timing improved bone healing, addressing congenital limb shortening challenges.

Area of Science:

  • Orthopedic Surgery
  • Limb Reconstruction

Background:

  • Limb length discrepancies pose significant challenges in pediatric and adult orthopedics.
  • The Wagner apparatus is a recognized external fixation device for limb lengthening procedures.

Purpose of the Study:

  • To review outcomes of femoral and tibial lengthening using the Wagner apparatus.
  • To identify factors influencing bone healing and complication rates.
  • To discuss specific considerations for congenital short femur and tibia lengthening.

Main Methods:

  • Retrospective review of 50 patients undergoing femoral and/or tibial lengthening with the Wagner apparatus.
  • Analysis of leg length gain, complication rates, and radiographic evidence of bone healing.
  • Comparison of outcomes based on surgical technique variations (osteotomy type, distraction timing).

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Main Results:

  • Satisfactory increases in leg length were achieved across the patient cohort.
  • The overall complication rate was acceptably low.
  • Substitution of cortical osteotomy for complete osteotomy and delayed distraction positively influenced callus formation.

Conclusions:

  • The Wagner apparatus is effective for femoral and tibial lengthening, yielding good functional outcomes.
  • Surgical technique modifications, specifically osteotomy type and distraction timing, can enhance bone consolidation.
  • Addressing congenital limb shortening requires tailored approaches within the framework of lengthening procedures.