Comparison of tapered-wedge short and standard-length femoral stems in single-stage bilateral direct anterior total hip arthroplasty

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 type...

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Bibliographic Details
Published in:International orthopaedics 2021-12, Vol.45 (12), p.3119-3127
Main Authors: Uçan, Vahdet, Ezici, Volkan, Aliyev, Orkhan, Uzer, Gökçer, Tuncay, İbrahim, Yıldız, Fatih
Format: Article
Language:English
Subjects:
Adult
Aged
Antiviral Agents
Arthroplasty, Replacement, Hip - adverse effects
Femur - diagnostic imaging
Femur - surgery
Hip Prosthesis
Humans
Medicine
Medicine & Public Health
Middle Aged
Original Paper
Orthopedics
Prosthesis Design
Retrospective Studies
Treatment Outcome
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Summary: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  
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-021-05152-9