Leg-length discrepancy after transtrochanteric curved varus osteotomy for osteonecrosis of the femoral head

S. Ikemura, Taku Yamamoto, S. Jingushi, Y. Nakashima, T. Mawatari, Y. Iwamoto

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Transtrochanteric curved varus osteotomy was designed to avoid some of the disadvantages of varus wedge osteotomy, such as post-operative leg-length discrepancy. In this retrospective study we investigated the leg-length discrepancy and clinical outcome after transtrochanteric curved varus osteotomy undertaken in patients with osteonecrosis of the femoral head. Between January 1993 and March 2004, this osteotomy was performed in 42 hips of 36 patients with osteonecrosis of the femoral head. There were 15 males and 21 females with a mean age at surgery of 34 years (15 to 68). The mean follow-up was 5.9 years (2.0 to 12.5). The mean pre-operative Harris hip score was 64.0 (43 to 85) points, which improved to a mean of 88.7 (58 to 100) points at final follow-up. The mean varus angulation post-operatively was 25° (12° to 38°) and the post-operative mean leg-length discrepancy was 13 mm (4 to 25). The post-operative leg-length discrepancy showed a strong correlation with varus angulation (Pearson's correlation coefficient; r = 0.9530, p < 0.0001), which may be useful for predicting the leg-length discrepancy which can occur even after transtrochanteric curved varus osteotomy.

Original languageEnglish
Pages (from-to)725-729
Number of pages5
JournalJournal of Bone and Joint Surgery - Series B
Volume89
Issue number6
DOIs
Publication statusPublished - Jun 2007

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

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