학술논문
Differences in hip muscle isokinetic torque waveforms in individuals submitted to hip arthroscopy for the treatment of femoroacetabular impingement syndrome: a prospective analysis
Document Type
Academic Journal
Author
Source
Brazilian Journal of Motor Behavior. July, 2023, Vol. 17 Issue 2, p301, 2 p.
Subject
Language
English
Abstract
Guilherme Vinicius da Costa Universidade do Estado de Santa Catarina (UDESC). Centro de Ciencias da Saude e do Esporte (CEFID). Bioaqua. Marcelo Peduzzi de Castro Instituto FisioLab. Alessandro Haupenthal Universidade [...]
Background: The femoroacetabular impingement (FAI) syndrome is a hip motion-related disorder, characterized by the symptomatic premature contact between the proximal femur and the acetabulum. When conservative treatment is unsuccessful, hip arthroscopy is indicated. Individuals with FAI syndrome present impaired hip muscle strength before and after hip arthroscopy compared with injury-free individuals. However, differences in dynamic hip muscle strength between pre and post hip arthroscopy are yet to be investigated. As a motion-related disorder, exploring the dynamic pattern of hip muscle strength in people with FAI syndrome is important. The isokinetic torque waveform is barely explored and could provide detailed information of muscle strength and joint function. Aim: The primary aim was to compare abduction and adduction torque waveforms from individuals with FAI syndrome, pre and post hip arthroscopy. We also compared pre--and post-surgery quality of life. Material and methods: This study was approved by the local ethics committee with protocol number of (CAAE 96023618.0.0000.0118). Forty individuals (mean age:38.0 [+ or -] 12.1 years, 50% men) with FAI syndrome were assessed between one and four weeks before surgery, and between four and six months after surgery (individuals went through post-surgical physiotherapy). Hip abduction and adduction strength (three maximal efforts) was assessed through isokinetic dynamometry (Nm/kg). Abduction and adduction waveforms with the highest peak torque from the three maximal efforts of pre--and post-surgery assessments were extracted for analysis. Quality of life was measured through the International Hip Outcome Tool (iHot-33) at both assessments. Hip abduction and adduction torque waveforms from pre--and post-surgery assessments were compared through Statistical Parametric Mapping (SPM) paired sample t-test using open source spm1d code (www.spm1d.org). The analyses were carried out in MATLAB (R2021a, The MathWorks Inc., Natick, MA). Scores of iHot-33 from pre--and post-surgery assessments were compared through paired sample t-test using SPSS Statistics 20.0 (IBM Inc, USA). The significance level was set at alpha < 0.05. Results: Maximal hip abduction and adduction torque production did not differ between pre--and post-surgery throughout the whole range of motion (approximately 30[degrees]) (Figure 1). Quality of life increased significantly between pre--and post-surgery (preoperative: 37.2 [+ or -] 18.9; post operative: 71.8 [+ or -] 18.6; p<0.001) with large effect size (d = 0.99). Conclusions: Our findings suggest that hip abduction and adduction torque waveforms did not change following four to six months of surgery in individuals with FAI syndrome submitted to hip arthroscopy. However, a substantial increase was observed in quality of life. Future studies should investigate if changes in strength and other modifiable factors are associated with changes in quality of life.
Background: The femoroacetabular impingement (FAI) syndrome is a hip motion-related disorder, characterized by the symptomatic premature contact between the proximal femur and the acetabulum. When conservative treatment is unsuccessful, hip arthroscopy is indicated. Individuals with FAI syndrome present impaired hip muscle strength before and after hip arthroscopy compared with injury-free individuals. However, differences in dynamic hip muscle strength between pre and post hip arthroscopy are yet to be investigated. As a motion-related disorder, exploring the dynamic pattern of hip muscle strength in people with FAI syndrome is important. The isokinetic torque waveform is barely explored and could provide detailed information of muscle strength and joint function. Aim: The primary aim was to compare abduction and adduction torque waveforms from individuals with FAI syndrome, pre and post hip arthroscopy. We also compared pre--and post-surgery quality of life. Material and methods: This study was approved by the local ethics committee with protocol number of (CAAE 96023618.0.0000.0118). Forty individuals (mean age:38.0 [+ or -] 12.1 years, 50% men) with FAI syndrome were assessed between one and four weeks before surgery, and between four and six months after surgery (individuals went through post-surgical physiotherapy). Hip abduction and adduction strength (three maximal efforts) was assessed through isokinetic dynamometry (Nm/kg). Abduction and adduction waveforms with the highest peak torque from the three maximal efforts of pre--and post-surgery assessments were extracted for analysis. Quality of life was measured through the International Hip Outcome Tool (iHot-33) at both assessments. Hip abduction and adduction torque waveforms from pre--and post-surgery assessments were compared through Statistical Parametric Mapping (SPM) paired sample t-test using open source spm1d code (www.spm1d.org). The analyses were carried out in MATLAB (R2021a, The MathWorks Inc., Natick, MA). Scores of iHot-33 from pre--and post-surgery assessments were compared through paired sample t-test using SPSS Statistics 20.0 (IBM Inc, USA). The significance level was set at alpha < 0.05. Results: Maximal hip abduction and adduction torque production did not differ between pre--and post-surgery throughout the whole range of motion (approximately 30[degrees]) (Figure 1). Quality of life increased significantly between pre--and post-surgery (preoperative: 37.2 [+ or -] 18.9; post operative: 71.8 [+ or -] 18.6; p<0.001) with large effect size (d = 0.99). Conclusions: Our findings suggest that hip abduction and adduction torque waveforms did not change following four to six months of surgery in individuals with FAI syndrome submitted to hip arthroscopy. However, a substantial increase was observed in quality of life. Future studies should investigate if changes in strength and other modifiable factors are associated with changes in quality of life.