High Survival of Cemented Acetabular Component in Total Hip Arthroplasty Using a Novel Cementing Technique With Hydroxyapatite Granules at Bone-Cement Interface

PurposeThe purpose of this study is to compare using a novel cementing technique with hydroxyapatite granules at bone-cement interface with using the 3rd cementing technique on the acetabular component.Patients and MethodsBetween 2005 and 2007, we performed 54 primary cemented THAs using the 3rd generation cementing technique with hydroxyapatite granules at bone-cement interface (Group A: 21 hips) or without them (Group B: 33 hips) in 49 patients with dysplastic hip (6 males, 43 female; mean age at operation, 67 years; age range, 48–84 years). Mean follow up was 5.3 years (range, 2.3–7.1 years), with none of the patients lost to follow up. According to Crowe's classification, subluxation was Group I in 31 hips, group II in 11 hips, group III in 8 hips, and group IV in 4 hips. We used Exeter flanged cup, Exeter stem with a 22-mm diameter metal head (Stryker, Benoist Girard, France) and Simplex-P bone cement (Stryker, Limerick, Ireland) in all hips. A posterolateral approach was performed for all patients. ...