Vahdet Uçan1, Volkan Ezici1, Orkhan Aliyev1, Gökçer Uzer1, İbrahim Tuncay1, Fatih Yıldız2. 1. Department of Orthopaedics and Traumatology, Bezmialem Vakif University, İskender Paşa Mh Adnan Menderes Bulvarı, Adnan Menderes Blv., 34093, Fatih, İstanbul, Turkey. 2. Department of Orthopaedics and Traumatology, Bezmialem Vakif University, İskender Paşa Mh Adnan Menderes Bulvarı, Adnan Menderes Blv., 34093, Fatih, İstanbul, Turkey. yildizfatih@hotmail.com.
Abstract
PURPOSE: This study was performed to compare short and standard-length tapered-wedge-type femoral stems in single-stage bilateral total hip arthroplasty (THA) through a direct anterior approach (DAA). MATERIALS AND METHODS: The patients were divided into two groups according to their femoral stem types as short tapered-wedge stem and standard-length tapered-wedge stem groups. Outcome parameters were the surgical time, estimated blood loss (EBL), length of stay (LOS), thigh pain, Harris Hip Score (HHS), and visual analog scale (VAS) score clinically, and canal fill ratio (CFR), coronal plan alignment of the stems, subsidence, and postoperative leg length difference (LLD), radiologically. RESULTS: The short-stem group and standard-length-stem group consisted of 20 patients (40 hips, mean age 52.0 ± 14.1) and 22 patients (44 hips, mean age 49.4 ± 11.9), respectively. There were no significant differences between the groups in terms of mean surgical times (p = 0.6), EBL (p = 0.2), LOS (p = 0.2), the rate of thigh pain (p = 0.4), improvements in HHS (p = 0.4) and VAS scores (p = 0.6), LLD (p = 0.3), amount of subsidence (p = 0.9), and varus or valgus misalignment (p = 0.7). The CFR at the level of the lesser trochanter was significantly higher in the short-stem group (0.79 ± 0.1) than the standard-length-stem group (0.73 ± 0.1) (p < 0.01). CONCLUSION: In single-stage bilateral THA through DAA, short, tapered-wedge femoral stems provide similar radiographic and functional results to standard stems at short-term follow-up.
PURPOSE: This study was performed to compare short and standard-length tapered-wedge-type femoral stems in single-stage bilateral total hip arthroplasty (THA) through a direct anterior approach (DAA). MATERIALS AND METHODS: The patients were divided into two groups according to their femoral stem types as short tapered-wedge stem and standard-length tapered-wedge stem groups. Outcome parameters were the surgical time, estimated blood loss (EBL), length of stay (LOS), thigh pain, Harris Hip Score (HHS), and visual analog scale (VAS) score clinically, and canal fill ratio (CFR), coronal plan alignment of the stems, subsidence, and postoperative leg length difference (LLD), radiologically. RESULTS: The short-stem group and standard-length-stem group consisted of 20 patients (40 hips, mean age 52.0 ± 14.1) and 22 patients (44 hips, mean age 49.4 ± 11.9), respectively. There were no significant differences between the groups in terms of mean surgical times (p = 0.6), EBL (p = 0.2), LOS (p = 0.2), the rate of thigh pain (p = 0.4), improvements in HHS (p = 0.4) and VAS scores (p = 0.6), LLD (p = 0.3), amount of subsidence (p = 0.9), and varus or valgus misalignment (p = 0.7). The CFR at the level of the lesser trochanter was significantly higher in the short-stem group (0.79 ± 0.1) than the standard-length-stem group (0.73 ± 0.1) (p < 0.01). CONCLUSION: In single-stage bilateral THA through DAA, short, tapered-wedge femoral stems provide similar radiographic and functional results to standard stems at short-term follow-up.
Authors: Ryan G Molli; Adolph V Lombardi; Keith R Berend; Joanne B Adams; Michael A Sneller Journal: Clin Orthop Relat Res Date: 2012-02 Impact factor: 4.176