Challenge of the Week / Knee / 05.01.20

When compared with posterior-stabilized total knee arthroplasty, which of the following is an advantage of cruciate-retaining total knee arthroplasty?
  • Improved range of motion
  • There is no evidence to support improved range of motion of cruciate-retaining versus cruciate-sacrificing total knee arthroplasty.

  • More required bone resection when using a measured resection technique
  • Gap balancing and measured resection techniques can be used with either cruciate-retaining or cruciate-sacrificing total knee arthroplasty.

  • Enhanced proprioception as evidenced by improved functional outcome scores
  • Some authors do suggest that there is increased proprioception with cruciate ligament retention; however, there is no evidence to support improved functional outcome scores.

  • Maintenance of the anatomic joint line
  • Over-resection of the distal aspect of the femur and use of a gap-balancing technique risks joint line elevation in posterior stabilized knee implants.

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