Patient-Specific Total Knees Demonstrate a Higher Manipulation Rate Compared to "Off-the-Shelf Implants". Academic Article uri icon

Overview

abstract

  • Patient-specific total knee replacements have been designed in hopes of providing better functional outcomes compared to "off-the-shelf" implants in primary total knee arthroplasty (TKA). We prospectively evaluated manipulation rates and clinical outcomes of 21 patient-specific TKAs matched with 42 posterior-stabilized and 11 cruciate-retaining "off-the-shelf" TKAs. Postoperatively, the patient-specific group had a range of motion significantly less than both control groups (P<0.01). Six of the 21 (28.6%) patient-specific TKAs required manipulation to improve range of motion. No manipulations were reported in either control groups. At minimum two-year follow-up the patient-specific TKAs had similar motion, but worse satisfaction and KSS pain scores. Radiographic analysis provided no insight to the cause of stiffness. Early manipulation is recommended for stiffness with patient-specific TKA.

publication date

  • August 1, 2015

Research

keywords

  • Arthroplasty, Replacement, Knee
  • Knee Prosthesis
  • Prosthesis Design
  • Range of Motion, Articular

Identity

Scopus Document Identifier

  • 84953838025

Digital Object Identifier (DOI)

  • 10.1016/j.arth.2015.07.041

PubMed ID

  • 26318082

Additional Document Info

volume

  • 31

issue

  • 1