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Corrective osteotomy for humerus varus.

Obi F C Ugwonali1, Donald S Bae, Peter M Waters

  • 1Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA, USA.

Journal of Pediatric Orthopedics
|June 23, 2007
PubMed
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Proximal humeral valgus osteotomy effectively treats humerus varus in skeletally immature patients, improving shoulder motion and the humeral neck-shaft angle. This surgical technique offers significant functional and radiographic benefits for young patients.

Area of Science:

  • Orthopedic surgery
  • Pediatric orthopedics
  • Skeletal deformities

Background:

  • Humerus varus, resulting from medial proximal humeral physis growth arrest, can cause limb length discrepancy and limited shoulder mobility.
  • This condition requires effective treatment in skeletally immature individuals to prevent long-term functional deficits.

Purpose of the Study:

  • To evaluate the outcomes of proximal humeral valgus osteotomy in skeletally immature patients diagnosed with humerus varus.
  • To assess the surgical technique's efficacy in correcting the deformity and improving shoulder function.

Main Methods:

  • A cohort of six skeletally immature patients (ages 9-17) with humerus varus underwent proximal humeral valgus osteotomy with tension-band fixation.
  • Causes of humerus varus included post-traumatic physeal arrest, infection, bone cysts, and idiopathic factors.

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  • Follow-up averaged 21 months, encompassing clinical and radiographic assessments.

    • Main Results:

    • All patients achieved successful bony union post-surgery.
    • Significant improvements were observed in shoulder range of motion, including forward flexion (76° to 148°) and abduction (63° to 116°).
    • Radiographic analysis showed a marked improvement in the mean humeral neck-shaft angle (95° to 130°).

    Conclusions:

    • Proximal humeral valgus osteotomy, augmented with tension-band fixation, is a highly effective treatment for humerus varus in skeletally immature patients.
    • The procedure successfully enhances shoulder function and corrects the humeral neck-shaft angle, leading to positive clinical outcomes.