Is the pie-crusting technique safe for MCL release in varus deformity correction in total knee arthroplasty?

R. Michael Meneghini, Andrew T. Daluga, Lindsey A. Sturgis, Jay R. Lieberman

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Established for lateral release in TKA, the pie-crusting technique has not been studied for the medial collateral ligament (MCL). In cadaveric knees the MCL was release with a pie-crusting technique in one and traditional technique in the contralateral knee. Along with a control group, each MCL was subjected to mechanical testing. The stiffness, force and stress required to cause ligament elongation were less in the pie-crusting group (p < 0.05) compared to the control group, but were not statistically different than the traditional group. The pie-crusting group demonstrated a characteristic "stair-step" failure mode at the joint line, whereas the traditional group failed elastically at the tibial insertion. MCL pie-crusting is likely technique dependent since failure occurs within the ligament itself and further study is warranted.

Original languageEnglish (US)
Pages (from-to)1306-1309
Number of pages4
JournalJournal of Arthroplasty
Volume28
Issue number8
DOIs
StatePublished - Sep 1 2013

Keywords

  • Medial collateral ligament
  • Pie-crusting
  • Release
  • Total knee arthroplasty
  • Total knee replacement

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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