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Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair

BACKGROUND: The effect of the double-incision technique on the supinator muscle is unclear. PURPOSE: The aim of this study was to quantify fatty atrophy of the supinator muscle and map the area of muscle damage. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 19 male patients (m...

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Autores principales: Blonna, Davide, Olivero, Alberto, Galletta, Claudia, Greco, Valentina, Castoldi, Filippo, Fracassi, Matteo, Davico, Marco, Rossi, Roberto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2020
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7734523/
https://www.ncbi.nlm.nih.gov/pubmed/33354582
http://dx.doi.org/10.1177/2325967120967776
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author Blonna, Davide
Olivero, Alberto
Galletta, Claudia
Greco, Valentina
Castoldi, Filippo
Fracassi, Matteo
Davico, Marco
Rossi, Roberto
author_facet Blonna, Davide
Olivero, Alberto
Galletta, Claudia
Greco, Valentina
Castoldi, Filippo
Fracassi, Matteo
Davico, Marco
Rossi, Roberto
author_sort Blonna, Davide
collection PubMed
description BACKGROUND: The effect of the double-incision technique on the supinator muscle is unclear. PURPOSE: The aim of this study was to quantify fatty atrophy of the supinator muscle and map the area of muscle damage. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 19 male patients (median age, 43 years) who underwent distal biceps tendon repair were included in the analysis. Patients with a minimum of 12 months of follow-up were included. The following variables were analyzed: range of motion; shortened version of Disabilities of the Arm, Shoulder and Hand (QuickDASH) score; Summary Outcome Determination (SOD) score; and isokinetic peak force and endurance in supination. Quantitative analysis and mapping of fatty infiltration of the supinator muscle were based on the calculation of proton density fat fraction on magnetic resonance imaging scans of both elbows using the IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) sequence. RESULTS: At an average follow-up of 24 months (range, 12-64 months), the median SOD score was 9.0 (95% CI, 7.8-9.4), and the mean QuickDASH score was 6.7 (95% CI, 0.0-14.1). A difference of 17% in peak torque was measured between repaired and nonrepaired elbows (repaired elbow: 9.7 N·m; nonrepaired elbow: 11.7 N·m; P = .11). Endurance was better in the repaired elbow than the nonrepaired elbow (8.4% vs 14.9% work fatigue, respectively; P = .02). The average fat fraction of the supinator muscle was 19% (95% CI, 16%-21%) in repaired elbows and 14% (95% CI, 13%-16%) in contralateral elbows (P = .04). The increase in fat fraction was located in a limited area between the radius and ulna at the level of the bicipital tuberosity. CONCLUSION: The assessment of the supinator muscle showed a limited increase in fat fraction between the radius and ulna at the level of the bicipital tuberosity. No significant effect on supination strength was highlighted.
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spelling pubmed-77345232020-12-21 Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair Blonna, Davide Olivero, Alberto Galletta, Claudia Greco, Valentina Castoldi, Filippo Fracassi, Matteo Davico, Marco Rossi, Roberto Orthop J Sports Med Article BACKGROUND: The effect of the double-incision technique on the supinator muscle is unclear. PURPOSE: The aim of this study was to quantify fatty atrophy of the supinator muscle and map the area of muscle damage. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 19 male patients (median age, 43 years) who underwent distal biceps tendon repair were included in the analysis. Patients with a minimum of 12 months of follow-up were included. The following variables were analyzed: range of motion; shortened version of Disabilities of the Arm, Shoulder and Hand (QuickDASH) score; Summary Outcome Determination (SOD) score; and isokinetic peak force and endurance in supination. Quantitative analysis and mapping of fatty infiltration of the supinator muscle were based on the calculation of proton density fat fraction on magnetic resonance imaging scans of both elbows using the IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) sequence. RESULTS: At an average follow-up of 24 months (range, 12-64 months), the median SOD score was 9.0 (95% CI, 7.8-9.4), and the mean QuickDASH score was 6.7 (95% CI, 0.0-14.1). A difference of 17% in peak torque was measured between repaired and nonrepaired elbows (repaired elbow: 9.7 N·m; nonrepaired elbow: 11.7 N·m; P = .11). Endurance was better in the repaired elbow than the nonrepaired elbow (8.4% vs 14.9% work fatigue, respectively; P = .02). The average fat fraction of the supinator muscle was 19% (95% CI, 16%-21%) in repaired elbows and 14% (95% CI, 13%-16%) in contralateral elbows (P = .04). The increase in fat fraction was located in a limited area between the radius and ulna at the level of the bicipital tuberosity. CONCLUSION: The assessment of the supinator muscle showed a limited increase in fat fraction between the radius and ulna at the level of the bicipital tuberosity. No significant effect on supination strength was highlighted. SAGE Publications 2020-12-10 /pmc/articles/PMC7734523/ /pubmed/33354582 http://dx.doi.org/10.1177/2325967120967776 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by-nc-nd/4.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Article
Blonna, Davide
Olivero, Alberto
Galletta, Claudia
Greco, Valentina
Castoldi, Filippo
Fracassi, Matteo
Davico, Marco
Rossi, Roberto
Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title_full Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title_fullStr Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title_full_unstemmed Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title_short Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair
title_sort minimal damage to the supinator muscle after the double-incision technique for distal biceps tendon repair
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7734523/
https://www.ncbi.nlm.nih.gov/pubmed/33354582
http://dx.doi.org/10.1177/2325967120967776
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