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

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

Research output: Contribution to journalArticle

21 Citations (Scopus)

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

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Collateral Ligaments
Knee Replacement Arthroplasties
Ligaments
Knee Medial Collateral Ligament
Control Groups
Knee
Joints

Keywords

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

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Is the pie-crusting technique safe for MCL release in varus deformity correction in total knee arthroplasty? / Meneghini, R.; Daluga, Andrew T.; Sturgis, Lindsey A.; Lieberman, Jay R.

In: Journal of Arthroplasty, Vol. 28, No. 8, 09.2013, p. 1306-1309.

Research output: Contribution to journalArticle

Meneghini, R. ; Daluga, Andrew T. ; Sturgis, Lindsey A. ; Lieberman, Jay R. / Is the pie-crusting technique safe for MCL release in varus deformity correction in total knee arthroplasty?. In: Journal of Arthroplasty. 2013 ; Vol. 28, No. 8. pp. 1306-1309.
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