Document Detail

Functional outcomes used to compare single radius and multiradius of curvature designs in total knee arthroplasty.
MedLine Citation:
PMID:  23057145     Owner:  NLM     Status:  In-Process    
A recent development to better recreate joint kinematics has been a change from a multiradius (MR) design to a single radius (SR) design. We analyzed 559 primary total knee arthroplasty (TKA) procedures which used either a SR (n = 426 Triathlon; Stryker Orthopaedics, Mahwah, NJ) or MR of curvature knee system (n = 133 Duracon; Stryker Orthopaedics, Mahwah, NJ) (79.3% follow-up; 705 total TKA procedures identified). Patients were administered a modification of the Knee Society score (KSS) (3.9 years average follow-up). The SR design showed improvements over the MR design in pain (p = 0.021), stability (p = 0.002), flexion (p = 0.006), ability to completely straighten the knee (p = 0.025), stair climbing (p = 0.0001), walking (p = 0.0001), use of assistive devices (p = 0.0005), postoperative knee score (p = 0.0005), and postoperative function (p < 0.0001). Analysis of the change in KSS knee (p = 0.002) and function scores (p = 0.002) from preoperative visit to postoperative follow-up favored the SR design as well. These data support the use of SR implants and provide evidence of improved outcomes in terms of function, stability, and pain.
Laurence E Cook; Alison K Klika; Caleb R Szubski; James Rosneck; Robert Molloy; Wael K Barsoum
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The journal of knee surgery     Volume:  25     ISSN:  1538-8506     ISO Abbreviation:  J Knee Surg     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137599     Medline TA:  J Knee Surg     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  249-53     Citation Subset:  IM    
School of Medicine, Case Western Reserve University, Cleveland, Ohio 44195, USA.
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