Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair

Abstract Purpose Little is known about the direct influence of different technical options at the rotator cuff tendon‐bone interface (TBI) and, more specifically, at the medial bearing row (MBR), regarding local contact force, area and pressure. We evaluated the mechanical repercussions of different...

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Main Authors: Carlos Maia Dias, Sérgio B. Gonçalves, António Completo, Manuel Ribeiro daSilva, Clara deCampos Azevedo, Jorge Mineiro, Frederico Ferreira, João Folgado
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Experimental Orthopaedics
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Online Access:https://doi.org/10.1186/s40634-022-00536-1
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author Carlos Maia Dias
Sérgio B. Gonçalves
António Completo
Manuel Ribeiro daSilva
Clara deCampos Azevedo
Jorge Mineiro
Frederico Ferreira
João Folgado
author_facet Carlos Maia Dias
Sérgio B. Gonçalves
António Completo
Manuel Ribeiro daSilva
Clara deCampos Azevedo
Jorge Mineiro
Frederico Ferreira
João Folgado
author_sort Carlos Maia Dias
collection DOAJ
description Abstract Purpose Little is known about the direct influence of different technical options at the rotator cuff tendon‐bone interface (TBI) and, more specifically, at the medial bearing row (MBR), regarding local contact force, area and pressure. We evaluated the mechanical repercussions of different medial row anchor configurations for that setting using different values of tension in the lateral row anchors. Methods Knotless transosseous equivalent (TOE) rotator cuff repairs with locked versus nonlocked medial anchors and single versus double‐hole suture passage were tested in a synthetic rotator cuff mechanical model, using 2 different values of lateral row tension. Contact force, area, pressure, peak force and MBR force were compared at the simulated TBI using a pressure mapping sensor. Results When compared to locked anchors, medial row sliding configurations generate lower values for all the above‐mentioned parameters. The use of double‐hole suture passage in the medial cuff generated slightly higher values contact area regardless of lateral row tension. At higher lateral row tension values, lower values of the remaining parameters, including MBR force, were found when compared to single‐hole suture passage. Lateral row anchor tension increase induced an increase of all parameters regardless of the medial row configuration and TBI contact force and MBR force were the most susceptible parameters, regardless of the medial row pattern. Conclusion Medial row mechanism, suture configuration and lateral row tension interfere with the mechanical force, area and pressure at by TBI. Lateral row tension increase is a major influencer in those parameters. These results can help surgeons choose the right technique considering its mechanical effect at the TBI.
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spelling doaj-art-b92774a3fafc49b0858f2f4a13b95aca2025-08-20T02:05:23ZengWileyJournal of Experimental Orthopaedics2197-11532022-01-0191n/an/a10.1186/s40634-022-00536-1Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repairCarlos Maia Dias0Sérgio B. Gonçalves1António Completo2Manuel Ribeiro daSilva3Clara deCampos Azevedo4Jorge Mineiro5Frederico Ferreira6João Folgado7Department of Bioengineeringand iBB ‐ Institute for Bioengineering and BiosciencesInstituto Superior TécnicoUniversidade de LisboaLisbonPortugalIDMECInstituto Superior TécnicoUniversidade de LisboaLisbonPortugalTEMADepartment of Mechanical EngineeringUniversity of Aveiro (UA)AveiroPortugalHospital CUF PortoPortoPortugalLife and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoCampus de GualtarBragaPortugalHospital CUF DescobertasLisbonPortugalDepartment of Bioengineeringand iBB ‐ Institute for Bioengineering and BiosciencesInstituto Superior TécnicoUniversidade de LisboaLisbonPortugalIDMECInstituto Superior TécnicoUniversidade de LisboaLisbonPortugalAbstract Purpose Little is known about the direct influence of different technical options at the rotator cuff tendon‐bone interface (TBI) and, more specifically, at the medial bearing row (MBR), regarding local contact force, area and pressure. We evaluated the mechanical repercussions of different medial row anchor configurations for that setting using different values of tension in the lateral row anchors. Methods Knotless transosseous equivalent (TOE) rotator cuff repairs with locked versus nonlocked medial anchors and single versus double‐hole suture passage were tested in a synthetic rotator cuff mechanical model, using 2 different values of lateral row tension. Contact force, area, pressure, peak force and MBR force were compared at the simulated TBI using a pressure mapping sensor. Results When compared to locked anchors, medial row sliding configurations generate lower values for all the above‐mentioned parameters. The use of double‐hole suture passage in the medial cuff generated slightly higher values contact area regardless of lateral row tension. At higher lateral row tension values, lower values of the remaining parameters, including MBR force, were found when compared to single‐hole suture passage. Lateral row anchor tension increase induced an increase of all parameters regardless of the medial row configuration and TBI contact force and MBR force were the most susceptible parameters, regardless of the medial row pattern. Conclusion Medial row mechanism, suture configuration and lateral row tension interfere with the mechanical force, area and pressure at by TBI. Lateral row tension increase is a major influencer in those parameters. These results can help surgeons choose the right technique considering its mechanical effect at the TBI.https://doi.org/10.1186/s40634-022-00536-1Rotator cuffMedial rowContact forcePressureAreaLateral row tension
spellingShingle Carlos Maia Dias
Sérgio B. Gonçalves
António Completo
Manuel Ribeiro daSilva
Clara deCampos Azevedo
Jorge Mineiro
Frederico Ferreira
João Folgado
Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
Journal of Experimental Orthopaedics
Rotator cuff
Medial row
Contact force
Pressure
Area
Lateral row tension
title Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
title_full Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
title_fullStr Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
title_full_unstemmed Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
title_short Mechanical consequences at the tendon‐bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
title_sort mechanical consequences at the tendon bone interface of different medial row knotless configurations and lateral row tension in a simulated rotator cuff repair
topic Rotator cuff
Medial row
Contact force
Pressure
Area
Lateral row tension
url https://doi.org/10.1186/s40634-022-00536-1
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