The effect of varus and valgus deformity on results of cementless mobile bearing TKA

被引:30
作者
Sorrells, R. Barry
Murphy, Jeffrey A.
Sheridan, Kate C.
Wasielewski, Ray C.
机构
[1] Joint Replacement Clin, Little Rock, AR 72223 USA
[2] DePuy Orthopaed, Warsaw, IN 46582 USA
[3] Grant Med Ctr, Columbus, OH 43215 USA
关键词
total knee arthroplasty; mobile bearing total knee arthroplasty; low contact stress (LCS) rotating platform; alignment; varus or valgus deformity;
D O I
10.1016/j.knee.2007.04.004
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
We aimed to determine whether preoperative angular deformity affects survivorsbip or postoperative alignment after cementless mobile bearing total knee arthroplasty. Nine hundred seventeen knees were grouped according to preoperative mechanical alignment: normal, 0-5 degrees; abnormal, 6-10 degrees; severely abnormal, > 10 degrees. Ten-year survival estimates were 89.7% for the severely abnormal alignment group, 95.5% for the abnormal alignment group, and 94.9% for the normal alignment group. Postoperatively, normal alignment was restored in 95.6% of knees in the severely abnormal group and 94.5% of knees in the abnormal group. For the normal alignment group, 99.2% of knees remained normally aligned after TKA. These differences in postoperative alignment may explain the severely abnormal alignment group's inferior survivorship outcome. This study shows that cementless mobile bearing implants can be successfully used in a wide range of angulated deformed knees, although preoperatively deformed knees did not do as well as preoperatively undeformed knees. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:284 / 288
页数:5
相关论文
共 29 条
[1]
Aglietti P, 1996, Am J Knee Surg, V9, P8
[2]
Lateral femoral sliding osteotomy - Lateral release in total knee arthroplasty for a fixed valgus deformity [J].
Brilhault, J ;
Lautman, S ;
Favard, L ;
Burdin, P .
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, 2002, 84B (08) :1131-1137
[3]
Long-term followup after mobile-bearing total knee replacement [J].
Buechel, FF .
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH, 2002, (404) :40-50
[4]
Evaluation of knee and hindfoot alignment before and after total knee arthroplasty - A prospective analysis [J].
Chandler, JT ;
Moskal, JT .
JOURNAL OF ARTHROPLASTY, 2004, 19 (02) :211-216
[5]
The correction of severe varus deformity in total knee arthroplasty by tibial component downsizing and resection of uncapped proximal medial bone [J].
Dixon, MC ;
Parsch, D ;
Brown, RR ;
Scott, RD .
JOURNAL OF ARTHROPLASTY, 2004, 19 (01) :19-22
[6]
Total knee arthroplasty for severe valgus deformity - Five to fourteen-year follow-up [J].
Elkus, M ;
Ranawat, CS ;
Rasquinha, VJ ;
Babhulkar, S ;
Rossi, R ;
Ranawat, AS .
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 2004, 86A (12) :2671-2676
[7]
Engh GA, 1999, CLIN ORTHOP RELAT R, P141
[8]
The difficult knee - Severe varus and valgus [J].
Engh, GA .
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH, 2003, (416) :58-63
[9]
Ritter M A, 1992, J Arthroplasty, V7 Suppl, P365
[10]
Healy WL, 1998, CLIN ORTHOP RELAT R, P161