Patient-specific versus conventional instrumentation for total knee arthroplasty: Peri-operative and cost differences

Alexander M. DeHaan, Jacob R. Adams, Matthew L. DeHart, Thomas W. Huff

Research output: Contribution to journalArticle

36 Scopus citations


The role of patient-specific instrumentation in total knee arthroplasty (TKA) is yet to be clearly defined. Current evidence evaluating peri-operative and cost differences against conventional TKA is unclear. We reviewed 356 TKAs between July 2008 and April 2013; 306 TKAs used patient-specific instrumentation while 50 had conventional instrumentation. The patient-specific instrumentation cohort averaged 20.4 min less surgical time (. P < 0.01) and had a 42% decrease in operating room turnover time (. P = 0.022). At our institution, the money saved through increased operating room efficiency offset the cost of the custom cutting blocks and pre-operative advanced imaging. Routine use of patient-specific TKA can be performed with less surgical time, no increase in peri-operative morbidity, and at no increased cost when compared to conventional TKA.

Original languageEnglish (US)
Pages (from-to)2065-2069
Number of pages5
JournalJournal of Arthroplasty
Issue number11
StatePublished - Nov 1 2014



  • Cost-effectiveness
  • Custom cutting blocks
  • Patient-specific instrumentation
  • Patient-specific total knee arthroplasty
  • Total knee arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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