Accuracy of the modified Hardinge approach in acetabular positioning

被引:11
作者
Goyal, Prateek [1 ]
Lau, Adrian [1 ]
McCalden, Richard [1 ]
Teeter, Matthew G. [1 ,2 ,3 ]
Howard, James L. [1 ]
Lanting, Brent A. [1 ]
机构
[1] Western Univ, Div Orthopaed Surg, Dept Surg, Schulich Sch Med & Dent, London, ON, Canada
[2] Western Univ, Dept Med Biophys, Schulich Sch Med & Dent, London, ON, Canada
[3] Lawson Hlth Res Inst, Surg Innovat Program, London, ON, Canada
关键词
TOTAL HIP-ARTHROPLASTY; COMPONENT POSITION; SURGICAL APPROACH; DISLOCATION; MOTION; WEAR; IMPINGEMENT; REPLACEMENT; ORIENTATION; RANGE;
D O I
10.1503/cjs.011415
中图分类号
R61 [外科手术学];
学科分类号
100210 [外科学];
摘要
Background The surgical approach chosen for total hip arthroplasty (THA) may affect the positioning of the acetabular component. The purpose of this study was to examine the accuracy in orienting the acetabular component using the modified Hardinge approach. Methods We used our institutional arthroplasty database to identify patients with primary, press-fit, hemispherical acetabular components of a metal-on-polyethylene THA performed between 2003 and 2011. Patients with radiographs obtained 1-3 years after the index procedure were included for measurement of anteversion and inclination angles. Acceptable values of anteversion and abduction angles were defined as 15 degrees 10 degrees and 40 degrees 10 degrees, respectively. Results We identified 1241 patients from the database, and the modified Hardinge approach was used in 1010 of the patients included in our analysis. The acetabular component was anteverted in the acceptable zone in 54.1% of patients. The abduction angle was within the defined range in 79.2% of patients. Combined anteversion and abduction angles within the defined zone were present in 43.6% of patients. Conclusion Consistent with studies examining accuracy from other approaches, our study reveals that the modified Hardinge approach was only moderately accurate in positioning the acetabular component in the acceptable zone. Contexte La voie d'abord choisie pour une arthroplastie totale de la hanche (ATH) pourrait influer sur le positionnement du composant cotyloidien. La presente etude portait sur la precision de l'orientation du composant dans les interventions empruntant la voie de Hardinge modifiee. Methodes partir de la base de donnees sur les arthroplasties de notre etablissement, nous avons cherche puis retenu les patients ayant subi une ATH entre 2003 et 2011 et ayant alors recu une premiere prothese metal sur polyethylene avec composant cotyloidien hemispherique ajuste a la presse. Nous avons inclus les patients ayant subi des radiographies de 1 a 3 ans apres l'intervention afin de mesurer les angles d'anteversion et d'abduction. Les valeurs jugees acceptables etaient respectivement de 15 degrees +/- 10 degrees et de 40 degrees +/- 10 degrees. Resultats Nous avons retenu 1241 patients selectionnes a partir de la base de donnees; la voie employee pour 1010 d'entre eux etait la voie de Hardinge modifiee. L'angle d'anteversion du cotyle etait dans les limites acceptables chez 54,1 % des patients, l'angle d'abduction se trouvait dans les limites definies dans 79,2 % des cas, et les valeurs cibles etaient respectees pour les 2 parametres chez 43,6 % des patients. Conclusion Nous avons conclu que la precision du positionnement du composant cotyloidien par la voie de Hardinge modifiee est tout au plus moderee, ce qui concorde avec d'autres etudes visant a evaluer la precision d'autres techniques.
引用
收藏
页码:247 / 253
页数:7
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