Influence of patient-, design-, and surgery-related factors on rate of dislocation after primary cementless total hip arthroplasty.
We performed clinical, radiographic, and computed tomography examinations on a consecutive series of 1268 patients (1648 hips) to determine the prevalence of and factors contributing to dislocation after using a primary cementless total hip system. The prevalence of posterior dislocation was 3.6% (60 hips). Significant risk factors (Fisher exact test or chi(2) test, P < .05) were female sex, advanced age, high American Society of Anesthesiologists score (3 or 4), fracture of the femoral neck, nonrepair of the posterior soft-tissue sleeve, low or high cup anteversion, low or high stem anteversion, and low height of hip rotation center.
Kim
Young-Hoo
YH
Joint Replacement Center of Korea, Ewha Womans University School of Medicine, MokDong Hospital, Seoul, South Korea.
Choi
Yoowang
Y
Kim
Jun-Shik
JS
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D006621:Hip Joint; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D004204:Joint Dislocations / Q000453:epidemiology / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012307:Risk Factors; D055815:Young Adult