Tomasz Cudejko1,2, Martin van der Esch2, Jim Schrijvers1, Rosie Richards1, Josien C van den Noort1,3, Tim Wrigley4, Marike van der Leeden1,2, Leo D Roorda2, Willem Lems5,6, Jaap Harlaar1,7, Joost Dekker1,8. 1. Department of Rehabilitation Medicine, VU University Medical Center, Amsterdam Movement Sciences, Academic Medical Center, Amsterdam, The Netherlands. 2. Amsterdam Rehabilitation Research Center, Academic Medical Center, Amsterdam, The Netherlands. 3. Department of Radiology and Nuclear Medicine, Musculoskeletal Imaging Quantification Center, Academic Medical Center, Amsterdam, The Netherlands. 4. Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, University of Melbourne, Melbourne, Victoria, Australia. 5. Jan van Breemen Research Institute, VU University Medical Center, Amsterdam. 6. Amsterdam Rheumatology & Immunology Centre, Amsterdam Medical Center, Reade, VU University Medical Center, Amsterdam. 7. Delft University of Technology, Delft, The Netherlands. 8. Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands.
Abstract
Objectives: Wearing a soft knee brace has been shown to reduce self-reported knee instability in persons with knee OA. There is a need to assess whether a soft knee brace has a beneficial effect on objectively assessed dynamic knee instability as well. The aims of the study were to evaluate the effect of a soft knee brace on objectively assessed dynamic knee instability and to assess the difference in effect between a non-tight and a tight soft knee brace in persons with knee OA. Methods: Thirty-eight persons with knee OA and self-reported knee instability participated in a laboratory study. A within-subject design was used comparing no brace vs brace and comparing a non-tight vs a tight brace. The primary outcome measure was dynamic knee instability, expressed by the perturbation response (PR). The PR reflects deviation in the mean knee varus-valgus angle during level walking after a controlled mechanical perturbation. Linear mixed-effect model analysis was used to evaluate the effect of a brace on dynamic knee instability. Results: Wearing a brace significantly reduced the PR compared with not wearing a brace (B = -0.16, P = 0.01). There was no difference between a non-tight and a tight brace (B = -0.03, P = 0.60). Conclusion: This study is the first to report that wearing a soft knee brace reduces objectively assessed dynamic knee instability in persons with knee OA. Wearing a soft brace results in an objective improvement of knee instability beyond subjectively reported improvement. Trial registration: Nederlands Trial register (trialregister.nl) NTR6363.
Objectives: Wearing a soft knee brace has been shown to reduce self-reported knee instability in persons with knee OA. There is a need to assess whether a soft knee brace has a beneficial effect on objectively assessed dynamic knee instability as well. The aims of the study were to evaluate the effect of a soft knee brace on objectively assessed dynamic knee instability and to assess the difference in effect between a non-tight and a tight soft knee brace in persons with knee OA. Methods: Thirty-eight persons with knee OA and self-reported knee instability participated in a laboratory study. A within-subject design was used comparing no brace vs brace and comparing a non-tight vs a tight brace. The primary outcome measure was dynamic knee instability, expressed by the perturbation response (PR). The PR reflects deviation in the mean knee varus-valgus angle during level walking after a controlled mechanical perturbation. Linear mixed-effect model analysis was used to evaluate the effect of a brace on dynamic knee instability. Results: Wearing a brace significantly reduced the PR compared with not wearing a brace (B = -0.16, P = 0.01). There was no difference between a non-tight and a tight brace (B = -0.03, P = 0.60). Conclusion: This study is the first to report that wearing a soft knee brace reduces objectively assessed dynamic knee instability in persons with knee OA. Wearing a soft brace results in an objective improvement of knee instability beyond subjectively reported improvement. Trial registration: Nederlands Trial register (trialregister.nl) NTR6363.
Authors: Corey W Hunter; Timothy R Deer; Mark R Jones; George C Chang Chien; Ryan S D'Souza; Timothy Davis; Erica R Eldon; Michael F Esposito; Johnathan H Goree; Lissa Hewan-Lowe; Jillian A Maloney; Anthony J Mazzola; John S Michels; Annie Layno-Moses; Shachi Patel; Jeanmarie Tari; Jacqueline S Weisbein; Krista A Goulding; Anikar Chhabra; Jeffrey Hassebrock; Chris Wie; Douglas Beall; Dawood Sayed; Natalie Strand Journal: J Pain Res Date: 2022-09-08 Impact factor: 2.832
Authors: Saulo Machado; Victor Brito; Leonardo Maciel; Lucindo J Quintans Júnior; Walderi da Silva Junior; Jader de Farias Neto; Henrique Douglas Melo Coutinho; Bonglee Kim; Valter J de Santana Filho Journal: Pain Res Manag Date: 2022-05-05 Impact factor: 2.667