The accuracy of free-hand cup positioning -: a CT based measurement of cup placement in 105 total hip arthroplasties

被引：137

作者：

Saxler, G

Marx, A

Vandevelde, D

Langlotz, U

Tannast, M

Wiese, M

Michaelis, U

Kemper, G

Grützner, PA

Steffen, R

von Knoch, M

Holland-Letz, T

Bernsmann, K

机构：

[1] Univ Duisburg Essen, Dept Orthopaed Surg, D-45122 Essen, Germany

[2] Eeuwfeestklin Antwerpen, Dept Orthopaed Surg, B-2100 Deurne, Belgium

[3] Medivision, CH-4436 Oberdorf, Switzerland

[4] Univ Bern, Dept Orthopaed Surg, CH-3010 Bern, Switzerland

[5] Ruhr Univ Bochum, Dept Orthopaed Surg, D-44791 Bochum, Germany

[6] Alfried Krupp Krankenhaus Essen, Dept Orthopaed Surg, D-45117 Essen, Germany

[7] Dept Surg, D-42109 Wuppertal, Germany

[8] Heidelberg Univ, BG Unfallklin Ludwigshafen, Dept Traumatol, D-67071 Ludwigshafen, Germany

[9] Marienkrankenhaus Kaiserswerth, Dept Orthopaed Surg, D-40348 Dusseldorf, Germany

[10] Ruhr Univ Bochum, Dept Med Informat Biometr & Epidemiol, D-44801 Bochum, Germany

[11] Girardet Klin Essen, Dept Orthopaed Surg, D-45131 Essen, Germany

来源：

INTERNATIONAL ORTHOPAEDICS | 2004年 / 28卷 / 04期

关键词：

D O I：

10.1007/s00264-004-0542-5

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 studied 105 patients who received a total hip arthroplasty between June 1985 and August 2001 using freehand positioning of the acetabular cup. Using pelvic CT scan and the hip-plan module of SurgiGATE-System (Medivision, Oberdorf, Switzerland), we measured the angles of inclination and anteversion of the cup. Mean inclination angle was 45.8degrees+/-10.1degrees (range: 23.0-71.5degrees) and mean anteversion angle was 27.3degrees+/-15.0degrees (range: -23.5degrees to 59.0degrees). We compared the results to the "safe" position as defined by Lewinnek et al. and found that only 27/105 cups were implanted within the limits of the safe position. We conclude that a safe position as defined by Lewinnek et al. [13] was only achieved in a minority of the cups that were implanted freehand.

引用

页码：198 / 201

页数：4