Femoral component sizing in total knee arthroplasty: Size matched resection versus flexion space balancing

Stephen J. Incavo, Kathryn M. Coughlin, Bruce D. Beynnon

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Generally, 2 different methods are used to select femoral size. These can be termed "size-matched resection" and "flexion-space balancing." The purpose of this paper is to compare these 2 methods during 50 sequential total knee arthroplasty surgeries. The flexion-space-balancing method led to a smaller size selection than the size-matched-resection method in 28 (56%) knees. In the remaining 22 knees, the measurement methods led to the selection of the same size femoral component. The difference in measurement methods was significant (P<.05). The preoperative varus knees were more sensitive to the differences in measurement methods than the valgus knees (P<.05). A flexion space that is too small may adversely affect the clinical outcome of knee arthroplasty.

Original languageEnglish (US)
Pages (from-to)493-497
Number of pages5
JournalJournal of Arthroplasty
Volume19
Issue number4
DOIs
StatePublished - Jun 2004

Keywords

  • balancing
  • extension gap
  • flexion gap
  • knee arthroplasty
  • measured resection

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

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