Background The high hip center technique used for a deficient acetabulum is reconstruction of the hip at a high center of rotation. In the literature, there is no consensus regarding the value of this technique. Questions/purposes We investigated whether the newgeneration biconical threaded Zweymüller 1 cup fixed in a high nonanatomic position in patients with arthritis secondary to congenital hip disease experienced different rates of polyethylene wear and long-term survivorship when compared with anatomically positioned cups. Patients and Methods We studied the polyethylene wear rate and Kaplan-Meier survivorship of 104 titanium threaded Zweymüller 1 cups in 88 patients (81 females), placed in 70 hips at near-normal hip center and in 34 hips at a high hip center position at a distance of 31.1 to 60 mm (mean, 39.7 mm) from the interteardrop line. Minimum followup was 2 years (mean ± SD, 8.6 ± 3.5 years; range, 2-15 years).
ResultsThe mean linear polyethylene wear rates in the near-normal and high hip center groups were not different (0.110 ± 0.050 mm and 0.113 ± 0.057 mm, respectively
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.