Volume 7, 2021
|Number of page(s)||5|
|Published online||12 January 2021|
The bikini incision anterior cemented total hip arthroplasty: Assessment of radiological and clinical outcomes
A mid-term review
Ozorthopaedics – Centre for Adult Joint Arthroplasty, 1356 High Street, Malvern VIC 3144, Australia
2 AOA Accredited Fellow-Hip, Knee and Sports Surgery, Mulgrave Private Hospital, Blanton Drive, Melbourne VIC 3170, Australia
3 Monash University Surgical Interest Group, Scenic Blvd & Wellington Road, Clayton VIC 3800, Australia
* Corresponding author: email@example.com
Accepted: 14 December 2020
Introduction: There has been an increased interest in minimally invasive direct anterior approach total hip arthroplasty (THA) to provide greater patient satisfaction, improve pain relief, and reduce the duration of hospitalisation. A direct anterior approach hybrid cemented THA, utilising a bikini line incision, can be technically challenging. We aimed to undertake radiological analysis of femoral stem cementation, clinical outcomes, and component survivorship. Methods: Over a 5-year period, 215 primary elective bikini anterior THA conducted by a single surgeon were included. All procedures were performed using a cemented collarless polished stem. The operation was performed on a standard operating table. Patients undergoing posterior approach, revision procedures, and fractured neck of femurs were excluded. Post-operative radiographs were analysed for femoral cementation quality using the Barrack grading system. Harris hip scores (HHS) were determined at 6 weeks, 12 weeks, annually thereafter and the difference in HHS was noted. Results: In total, 215 anterior bikini THA (R = 101, L = 114) were performed in 199 patients (M = 89, F = 110) with a mean age of 77 and mean follow up of 2.9 years (range = 0.5–5). Radiographic analysis of femoral cementation showed 189 femoral stems (88%) were either Barrack A or B cementation grade, suggesting optimal cementation. Lucency in the cement-bone interface occurred mainly in Gruen Zone 1 (43%) and Zone 13(46.9%). At the most recent follow-up (mean 2.9 years), component survivorship was at 99.54% (stem). Significant improvement was noted in Harris hip scores at final follow-up (from 54 preoperatively to 92.7 at 2.9 years postoperatively). Conclusion: Our results suggest that a bikini incision direct anterior approach for total hip arthroplasty can be safely employed to perform cemented femoral stems on a standard operating table.
Key words: Bikini incision / Bikini hip replacement / Direct anterior approach / Hip arthroplasty / Femoral cementation
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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