Asymmetry of the leg alignment affects trunk bending in the coronal plane after unilateral total knee arthroplasty

Kengo Harato, Hiroki Yoshida, Toshiro Otani

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Unilateral total knee arthroplasty (TKA) would produce asymmetric changes of lower extremity in patients with bilateral varus deformity. Our purpose was to investigate whether asymmetry of the leg alignment would affect trunk bending in the coronal plane after unilateral TKA. Twenty patients (mean 76. years old) with bilateral end-stage knee osteoarthritis (OA) participated. Spine images during relaxed standing were obtained on pre- and postoperative day 21. As a result, the shoulder tilted more to the TKA side and the pelvis inclined more to the contralateral OA side. These results suggested that the trunk would bend away from the contralateral OA side after unilateral TKA in patients with bilateral end-stage knee OA and varus deformity. Asymmetry of the leg alignment led to asymmetric trunk bending.

Original languageEnglish
Pages (from-to)1089-1093
Number of pages5
JournalJournal of Arthroplasty
Volume28
Issue number7
DOIs
Publication statusPublished - 2013 Aug

Keywords

  • Asymmetry
  • Bilateral end-stage OA
  • Leg alignment
  • Radiograph
  • Unilateral TKA

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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