Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study

Background: Little evidence exists regarding the clinical outcomes of cemented trochanteric fixation for abductor mechanism reconstruction in proximal or total femoral replacements. Clinical outcomes were assessed for a novel cemented technique for trochanteric fixation in femoral megaprostheses. Me...

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Autores principales: Brian T. Muffly, MD, Kyle T. Boden, MD, Cale A. Jacobs, PhD, Patrick W. O’Donnell, MD, PhD, Stephen T. Duncan, MD
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Publicado: Elsevier 2021
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spelling oai:doaj.org-article:be3113b3573648a3a458f72564f0853f2021-11-14T04:33:43ZNovel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study2352-344110.1016/j.artd.2021.06.009https://doaj.org/article/be3113b3573648a3a458f72564f0853f2021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352344121001060https://doaj.org/toc/2352-3441Background: Little evidence exists regarding the clinical outcomes of cemented trochanteric fixation for abductor mechanism reconstruction in proximal or total femoral replacements. Clinical outcomes were assessed for a novel cemented technique for trochanteric fixation in femoral megaprostheses. Methods: A descriptive series of 13 patients who underwent proximal or total femoral arthroplasty from 2016 to 2019 were reviewed. Radiographic trochanteric displacement >1 cm defined construct failure. A Kaplan-Meier survival analysis was performed to determine survival rates for these cemented constructs. Demographic information was obtained to better characterize the patient population in whom this technique was used. Results: Eleven patients were included (age = 63.6 years; 45.4% females; body mass index = 31.7). Mean time to final radiographic follow-up was 73.8 weeks. Three of 11 (27.2%) patients had construct failure. Overall, survival at 1 year was 81.8%. At 2 years, survival of cemented constructs was 65.5%. More construct failures occurred in patients who sustained a postoperative dislocation than in those who did not (P = .05). Conclusions: This novel cemented trochanteric fixation technique for reconstruction of the abductor mechanism in femoral megaprostheses had 81.8% survival at 1 year postoperatively. While longitudinal comparative studies with larger samples are needed, the cemented technique may provide a viable alternative to traditional cementless methods of trochanteric fixation. Increased construct failure rates after postoperative dislocation highlight the importance of robust abductor reconstruction in these implants.Brian T. Muffly, MDKyle T. Boden, MDCale A. Jacobs, PhDPatrick W. O’Donnell, MD, PhDStephen T. Duncan, MDElsevierarticleAbductor reconstructionFemoral endoprosthesisMegaprosthesisGreater trochanterReconstructionOrthopedic surgeryRD701-811ENArthroplasty Today, Vol 11, Iss , Pp 10-14 (2021)
institution DOAJ
collection DOAJ
language EN
topic Abductor reconstruction
Femoral endoprosthesis
Megaprosthesis
Greater trochanter
Reconstruction
Orthopedic surgery
RD701-811
spellingShingle Abductor reconstruction
Femoral endoprosthesis
Megaprosthesis
Greater trochanter
Reconstruction
Orthopedic surgery
RD701-811
Brian T. Muffly, MD
Kyle T. Boden, MD
Cale A. Jacobs, PhD
Patrick W. O’Donnell, MD, PhD
Stephen T. Duncan, MD
Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
description Background: Little evidence exists regarding the clinical outcomes of cemented trochanteric fixation for abductor mechanism reconstruction in proximal or total femoral replacements. Clinical outcomes were assessed for a novel cemented technique for trochanteric fixation in femoral megaprostheses. Methods: A descriptive series of 13 patients who underwent proximal or total femoral arthroplasty from 2016 to 2019 were reviewed. Radiographic trochanteric displacement >1 cm defined construct failure. A Kaplan-Meier survival analysis was performed to determine survival rates for these cemented constructs. Demographic information was obtained to better characterize the patient population in whom this technique was used. Results: Eleven patients were included (age = 63.6 years; 45.4% females; body mass index = 31.7). Mean time to final radiographic follow-up was 73.8 weeks. Three of 11 (27.2%) patients had construct failure. Overall, survival at 1 year was 81.8%. At 2 years, survival of cemented constructs was 65.5%. More construct failures occurred in patients who sustained a postoperative dislocation than in those who did not (P = .05). Conclusions: This novel cemented trochanteric fixation technique for reconstruction of the abductor mechanism in femoral megaprostheses had 81.8% survival at 1 year postoperatively. While longitudinal comparative studies with larger samples are needed, the cemented technique may provide a viable alternative to traditional cementless methods of trochanteric fixation. Increased construct failure rates after postoperative dislocation highlight the importance of robust abductor reconstruction in these implants.
format article
author Brian T. Muffly, MD
Kyle T. Boden, MD
Cale A. Jacobs, PhD
Patrick W. O’Donnell, MD, PhD
Stephen T. Duncan, MD
author_facet Brian T. Muffly, MD
Kyle T. Boden, MD
Cale A. Jacobs, PhD
Patrick W. O’Donnell, MD, PhD
Stephen T. Duncan, MD
author_sort Brian T. Muffly, MD
title Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
title_short Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
title_full Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
title_fullStr Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
title_full_unstemmed Novel Cemented Technique for Trochanteric Fixation and Reconstruction of the Abductor Mechanism in Proximal and Total Femoral Arthroplasty: An Observational Study
title_sort novel cemented technique for trochanteric fixation and reconstruction of the abductor mechanism in proximal and total femoral arthroplasty: an observational study
publisher Elsevier
publishDate 2021
url https://doaj.org/article/be3113b3573648a3a458f72564f0853f
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