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[Risk factors for dislocation of a cementless total hip endoprosthesis--a statistical analysis].
- Source :
-
Zeitschrift fur Orthopadie und ihre Grenzgebiete [Z Orthop Ihre Grenzgeb] 2001 May-Jun; Vol. 139 (3), pp. 194-9. - Publication Year :
- 2001
-
Abstract
- Aim: This retrospective study aimed at the statistical identification of risk factors for dislocation for a certain cementless hip endoprothesis.<br />Material and Method: At our department 2605 primary total hip arthroplasties were performed between 1987 and 1997. In 40 patients (1.5%) a dislocation occurred. These patients were compared with a control group matched in number.<br />Results: No difference was found in both groups with respect to age, height, weight, body-mass index, and diagnosis. A tendency was found that more males were involved in the dislocation group. There were more previous operations found in this group (p = 0.005). Also significant was the fact, that patients in the dislocation group more often had epidural anaesthesia (p = 0.02), more often the implantation of the smaller 28-mm head (vs. 32 mm) (p = 0.02), and a higher inclination angle of the acetabular component (p = 0.02). No difference was found in terms of the surgeons experience, the postoperative leg length, femoral offset, medialisation, cranialisation and antetorsion of the acetabular component.<br />Conclusion: Dislocation after total hip arthroplasty is a multifactorial complication. With the use of the Alloclassic/Zweymüller total hip endoprothesis, a higher risk for dislocation was found for patients with previous hip surgery, the use of the smaller endoprosthesis head, a high acetabular inclination angle, and in the use of epidural anaesthesia.
Details
- Language :
- German
- ISSN :
- 0044-3220
- Volume :
- 139
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Zeitschrift fur Orthopadie und ihre Grenzgebiete
- Publication Type :
- Academic Journal
- Accession number :
- 11486620
- Full Text :
- https://doi.org/10.1055/s-2001-16320