In vivo gap analysis in various knee flexion angles during navigation-assisted total knee arthroplasty

Jung Ro Yoon, Hyeon Il Jeong, Kwang Jun Oh, Jae Hyuk Yang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Achieving rectangular flexion and extension gaps is important during gap balancing technique in total knee arthroplasty (TKA). However, assessment of gaps throughout the range of knee motion is obscure. One hundred knees operated by TKA using a navigation-assisted gap balancing technique were evaluated. Intraoperatively, after achieving rectangular flexion and extension gaps, mediolateral gaps in each flexion angle (0°, 45°, 90°, 120°) were recorded. Patients were divided into 4 groups; Group I: no gap difference (n = 64), Group II: lax in midflexion (n = 20), Group III: lax in deep flexion (n = 8) and Group IV: lax in both midflexion and deep flexion (n = 8). This study demonstrated that significant proportion (36%) of TKA cases had laxity in midflexion (45°) even when rectangular extension (0°)-flexion (90°) gap was achieved.

Original languageEnglish
Pages (from-to)1796-1800
Number of pages5
JournalJournal of Arthroplasty
Volume28
Issue number10
DOIs
StatePublished - 2013 Dec 1

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Knee Replacement Arthroplasties
Knee
Articular Range of Motion

Keywords

  • Deep flexion
  • Gap technique
  • Midflexion
  • Navigation
  • Total knee arthroplasty

Cite this

Yoon, Jung Ro ; Jeong, Hyeon Il ; Oh, Kwang Jun ; Yang, Jae Hyuk. / In vivo gap analysis in various knee flexion angles during navigation-assisted total knee arthroplasty. In: Journal of Arthroplasty. 2013 ; Vol. 28, No. 10. pp. 1796-1800.
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In vivo gap analysis in various knee flexion angles during navigation-assisted total knee arthroplasty. / Yoon, Jung Ro; Jeong, Hyeon Il; Oh, Kwang Jun; Yang, Jae Hyuk.

In: Journal of Arthroplasty, Vol. 28, No. 10, 01.12.2013, p. 1796-1800.

Research output: Contribution to journalArticle

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