[Durom hip resurfacing arthroplasty: first clinical experiences with a lateral approach].
BACKGROUND
We present the first clinical and radiographic results of the Durom Hip Resurfacing prosthesis with a lateral approach.


METHODS
52 patients (n = 59 protheses) with a mean follow-up of 25.4 +/- 10 month were evaluated. Clinical evaluation was done using the Harris hip score (HHS), a modified University of California at Los Angeles (UCLA) Activity Level Scale and the Merle d'Aubigné Score pre- and postoperatively. Radiographic evaluation included the preoperative femoral neck-shaft angle, the pre- and postoperative femoral offset, the postoperative stem-shaft angle as well as postoperative periprosthetic radiolucencies.


RESULTS
Within the clinical follow-up the postoperative mean HHS (93 +/- 4.3 vs. 41.2 +/- 7.1 points), the modified UCLA (8.8 +/- 2.8 vs. 4.8 +/- 1.9) as well as the Merle d'Aubigné Score (17.1 +/- 1.7 vs. 7.5 +/- 2.1) indicated a significant improvement (p <or= 0.05) compared to the preoperative evaluation. In 98.2 % a firm bony ingrown of the components without any radiolucency was observed. The average deviation of the preoperative physiological femoral neck-shaft angle (135.5 +/- 3.4 degrees) compared to the postoperative stem-shaft angle (141.3 +/- 4.8 degrees) was 5.8 +/- 2.6 degrees. The mean postoperative femoral offset was reduced by 2.5 mm. At follow-up 2 hips (3.5 %) were revised due to femoral neck fracture (n = 1) and to heterotopic ossifications (Brooker III) (n = 1).


CONCLUSIONS
The Durom Hip Resurfacing prosthesis is a promising alternative for the young and active patient. The real medical and economical benefit has to be evaluated in further examinations.
Gravius
S
S
Universitätsklinik für Orthopädie und Unfallchirurgie, Rheinische Friedrich-Wilhelms-Universität Bonn. sascha.gravius@web.de
Wirtz
D
D
Maus
U
U
Andereya
S
S
Müller-Rath
R
R
Mumme
T
T
D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D019544:Equipment Failure Analysis; D005260:Female; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011859:Radiography; D013812:Therapeutics