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Drigny J, Ferrandez C, Gauthier A, Guermont H, Praz C, Reboursière E, Hulet C. Knee strength symmetry at 4 months is associated with criteria and rates of return to sport after anterior cruciate ligament reconstruction. Ann Phys Rehabil Med 2022; 65:101646. [PMID: 35167984 DOI: 10.1016/j.rehab.2022.101646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 12/24/2021] [Accepted: 01/24/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Strength limb symmetry index (LSI) is a useful criterion to help in return-to-sport performance (RTP) after anterior cruciate ligament reconstruction (ACLR). OBJECTIVES We aimed to assess whether knee extensor and flexor LSI values at 4 months after ACLR are associated with those recommended at 8 months after ACLR for RTP (80%, 85% and 90%) and with successful RTP after 2 years. METHODS This was prospective cohort study of 113 participants who underwent primary ACLR. Personal factors such as demographic and sport information, injury and surgery characteristics were collected at 6 weeks after surgery. Isokinetic strength LSI (60°/s) was calculated at 4 months (LSI[4m]) and 8 months (LSI[8m]) for knee extensors (Q-LSI) and flexors (H-LSI). Participants were followed at 2 years after ACLR to determine their self-reported RTP. Multiple linear regression analysis was used to determine associations between personal factors and LSI at 4 and 8 months. Associations between passing the optimal cut-off thresholds and RTP were tested with chi-square tests and odds ratios (ORs) with effect sizes (ES). RESULTS Among the 113 participants (mean age 25.2 [SD 9.7] years; 42% females), extended tourniquet time and lower level of pre-injury sport were associated with lower Q-LSI[4m] and H-LSI[4m]. Bone-patellar tendon-bone graft was associated with lower Q-LSI[4m] and Q-LSI[8m], and older age was associated with lower Q-LSI[4m]. For knee extensors, Q-LSI[4m] >59% was associated with Q-LSI[8m] >80% (OR= 31.50, p <0.001, large ES) and increased odds of successful RTP (60% vs 31%, OR= 3.45, p= 0.003, medium ES). For knee flexors, H-LSI[4m] >72% was associated with H-LSI[8m] >90% (OR= 6.03, p <0.001, large ES) and increased odds of successful RTP (53% vs 23%, OR= 3.76, p= 0.013, small-to-medium ES). CONCLUSIONS After primary ACLR, 4-month post-operative strength symmetry was negatively associated with age, pre-injury sport and tourniquet time and bone-patellar tendon-bone graft. Four-month post-operative LSI was associated with 8-month post-operative LSI, and Q-LSI[4m] >59% or H-LSI[4m] >72% was associated with increased RTP rates after 2 years. CLINICALTRIALS.GOV: : NCT04071912.
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Affiliation(s)
- Joffrey Drigny
- Service de Médecine Physique et de Réadaptation, Service de Médecine du Sport, CHU de Caen Normandie, Normandie Univ, UNICAEN, INSERM, COMETE, GIP CYCERON, Caen 14000, France.
| | - Clémence Ferrandez
- Service de Médecine Physique et de Réadaptation, Service de Médecine du Sport, CHU de Caen Normandie, Caen 14000, France
| | - Antoine Gauthier
- Normandie Univ, UNICAEN, INSERM, COMETE, GIP CYCERON, Caen 14000, France
| | - Henri Guermont
- Service de Médecine du Sport, CHU de Caen Normandie, Caen 14000, France
| | - César Praz
- Département d'orthopédie et de traumatologie, Normandie Univ, UNICAEN, CHU de Caen Normandie, Caen 14000, France
| | | | - Christophe Hulet
- Département d'orthopédie et de traumatologie, Normandie Univ, UNICAEN, INSERM, COMETE, GIP CYCERON, Caen 14000, France
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Whittaker JL, Truong LK, Losciale JM, Silvester-Lee T, Miciak M, Pajkic A, Le CY, Hoens AM, Mosewich A, Hunt MA, Li LC, Roos EM. Efficacy of the SOAR knee health program: protocol for a two-arm stepped-wedge randomized delayed-controlled trial. BMC Musculoskelet Disord 2022; 23:85. [PMID: 35078446 PMCID: PMC8790851 DOI: 10.1186/s12891-022-05019-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/11/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Knee trauma permanently elevates one's risk for knee osteoarthritis. Despite this, people at-risk of post-traumatic knee osteoarthritis rarely seek or receive care, and accessible and efficacious interventions to promote knee health after injury are lacking. Exercise can ameliorate some mechanisms and independent risk factors for osteoarthritis and, education and action-planning improve adherence to exercise and promote healthy behaviours. METHODS To assess the efficacy of a virtually-delivered, physiotherapist-guided exercise-based program (SOAR) to improve knee health in persons discharged from care after an activity-related knee injury, 70 people (16-35 years of age, 12-48 months post-injury) in Vancouver Canada will be recruited for a two-arm step-wedged assessor-blinded delayed-control randomized trial. Participants will be randomly allocated to receive the intervention immediately or after a 10-week delay. The program consists of 1) one-time Knee Camp (group education, 1:1 individualized exercise and activity goal-setting); 2) weekly individualized home-based exercise and activity program with tracking, and; 3) weekly 1:1 physiotherapy-guided action-planning with optional group exercise class. Outcomes will be measured at baseline, 9- (primary endpoint), and 18-weeks. The primary outcome is 9-week change in knee extension strength (normalized peak concentric torque; isokinetic dynamometer). Secondary outcomes include 9-week change in moderate-to-vigorous physical activity (accelerometer) and self-reported knee-related quality-of-life (Knee injury and OA Outcome Score subscale) and self-efficacy (Knee Self Efficacy Scale). Exploratory outcomes include 18-week change in primary and secondary outcomes, and 9- and 18- week change in other components of knee extensor and flexor muscle function, hop function, and self-reported symptoms, function, physical activity, social support, perceived self-care and kinesiophobia. Secondary study objectives will assess the feasibility of a future hybrid effectiveness-implementation trial protocol, determine the optimal intervention length, and explore stakeholder experiences. DISCUSSION This study will assess the efficacy of a novel, virtually-delivered, physiotherapist-guided exercise-based program to optimize knee health in persons at increased risk of osteoarthritis due to a past knee injury. Findings will provide valuable information to inform the management of osteoarthritis risk after knee trauma and the conduct of a future effectiveness-implementation trial. TRIAL REGISTRATION Clinicaltrials.gov reference: NTC04956393. Registered August 5, 2021, https://clinicaltrials.gov/ct2/show/NCT04956393?term=SOAR&cond=osteoarthritis&cntry=CA&city=Vancouver&draw=2&rank=1.
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Affiliation(s)
- Jackie L Whittaker
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada.
- Arthritis Research Canada, Vancouver, Canada.
| | - Linda K Truong
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Arthritis Research Canada, Vancouver, Canada
| | - Justin M Losciale
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Arthritis Research Canada, Vancouver, Canada
| | | | - Maxi Miciak
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada
| | - Andrea Pajkic
- Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, Canada
| | - Christina Y Le
- Arthritis Research Canada, Vancouver, Canada
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada
| | - Alison M Hoens
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Arthritis Research Canada, Vancouver, Canada
| | - Amber Mosewich
- Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, Canada
| | - Michael A Hunt
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Arthritis Research Canada, Vancouver, Canada
| | - Linda C Li
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Arthritis Research Canada, Vancouver, Canada
| | - Ewa M Roos
- Department of Musculoskeletal Function and Physiotherapy, University of Southern Denmark, Odense, Denmark
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Ohji S, Aizawa J, Hirohata K, Ohmi T, Mitomo S, Koga H, Yagishita K. Strength normalized to muscle volume rather than body weight is more accurate for assessing knee strength following anterior cruciate ligament reconstruction. ISOKINET EXERC SCI 2022. [DOI: 10.3233/ies-210132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Knee strength weakness is a major problem frequently observed in patients during postoperative rehabilitation following anterior cruciate ligament reconstruction (ACLR). OBJECTIVE: To investigate whether knee strength normalized to muscle volume could better detect side-to-side differences than that normalized to body weight following ACLR. METHOD: This study included 17 patients who had undergone primary ACLR (11.6 ± 2.3 months). Body weight and total muscle volume were measured using a bioelectrical impedance analysis composition scale. Isokinetic knee extension and flexion moment were measured at 60∘/s and 180∘/s, respectively. Bivariate correlation analysis was used to examine correlations between body composition and knee strength. Differences in knee strength between the operated and unoperated legs were analyzed using a paired t-test, which calculated the effect size. RESULTS: There was a significant correlation between knee strength and body weight (r= 0.53–0.67); however, a stronger correlation was observed between knee strength and total muscle volume (ρ= 0.80–0.87). The effect size was larger for knee strength expressed as % total muscle volume than for knee strength expressed as % body weight. CONCLUSION: Strength expressed as % total muscle volume may be more accurate than that expressed as % body weight for detecting side-to-side differences in knee strength following ACLR.
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Affiliation(s)
- Shunsuke Ohji
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Junya Aizawa
- Department of Physical Therapy, Juntendo University, Tokyo, Japan
| | - Kenji Hirohata
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takehiro Ohmi
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sho Mitomo
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuyoshi Yagishita
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
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Crotty NMN, Daniels KAJ, McFadden C, Cafferkey N, King E. Relationship Between Isokinetic Knee Strength and Single-Leg Drop Jump Performance 9 Months After ACL Reconstruction. Orthop J Sports Med 2022; 10:23259671211063800. [PMID: 35005049 PMCID: PMC8738888 DOI: 10.1177/23259671211063800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/24/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Deficits in knee strength after anterior cruciate ligament reconstruction (ACLR) surgery are common. Deficits in the single-leg drop jump (SLDJ), a test of plyometric ability, are also found. Purpose: To examine the relationship between isokinetic knee strength, SLDJ performance, and self-reported knee function 9 months after ACLR. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Knee isokinetic peak torque, SLDJ jump height, contact time, and reactive strength index (RSI), as well as International Knee Documentation Committee (IKDC) scores were assessed in 116 male, field-sport athletes at 9.2 months after ACLR. SLDJ testing took place in a 3-dimensional biomechanics laboratory. Linear regression models were used to analyze the relationship between the variables. Results: A significant relationship was found between ACLR-limb isokinetic knee extensor strength and SLDJ jump height (P < .001, r2 = 0.29) and RSI (P < .001, r2 = 0.33), and between ACLR-limb isokinetic knee flexor strength and SLDJ jump height (P < .001, r2 = 0.12) and RSI (P < .001, r2 = 0.15). A significant positive relationship was also found between knee extensor asymmetry and SLDJ jump height asymmetry (P < .001, r2 = 0.27) and SLDJ reactive strength asymmetry (P < .001, r2 = 0.18). Combined ACLR-limb jump height and contact time best predicted IKDC scores (P < .001, r2 = 0.12). Conclusion: Isokinetic knee extension strength explained approximately 30% of SLDJ performance, with a much weaker relationship between knee flexion strength and SLDJ performance. Isokinetic strength and SLDJ performance were weak predictors of variation in IKDC scores.
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Affiliation(s)
| | - Katherine A J Daniels
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Queen's School of Engineering, University of Bristol, Bristol, UK
| | - Ciaran McFadden
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Department of Life Sciences, University of Roehampton, London, UK
| | - Niall Cafferkey
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland
| | - Enda King
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Department of Life Sciences, University of Roehampton, London, UK
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van der Horst N, Denderen R. Isokinetic hamstring and quadriceps strength interpretation guideline for football (soccer) players with ACL reconstruction: a Delphi consensus study in the Netherlands. SCI MED FOOTBALL 2022; 6:434-445. [DOI: 10.1080/24733938.2021.2024592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Nick van der Horst
- Fifa Medical Centre of Excellence, Royal Netherlands Football Association (Knvb), Zeist, The Netherlands
| | - Remy Denderen
- Fifa Medical Centre of Excellence, Royal Netherlands Football Association (Knvb), Zeist, The Netherlands
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Read PJ, Trama R, Racinais S, McAuliffe S, Klauznicer J, Alhammoud M. Angle specific analysis of hamstrings and quadriceps isokinetic torque identify residual deficits in soccer players following ACL reconstruction: a longitudinal investigation. J Sports Sci 2022; 40:871-877. [PMID: 34983321 DOI: 10.1080/02640414.2021.2022275] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Analysing the isokinetic curve is important following ACL reconstruction as there may be deficits in torque production at specific points throughout the range of motion. We examined isokinetic (60°.s-1) torque-angle characteristics in 27 male soccer players (24.5 ± 3.9 years) at 3 time-points (17 ± 5; 25 ± 6; and 34 ± 7 weeks post-surgery). Extracted data included knee flexor and extensor peak torque, conventional hamstrings: quadriceps (H/Q) ratio, and angle-specific torque using Statistical Parametric Mapping (SPM). There were significant involved limb increases in extension peak torque at each assessment (p<0.001); however, asymmetry favouring the un-involved limb was observed (p<0.01). Flexion peak torque was greater on the un-involved limb at assessments 1 and 2 only (p<0.05). The angle of peak torque was not significantly different at individual time-points or within-limbs across the 3 assessments. SPM revealed involved limb angle-specific reductions in extension torque across the full range of motion at time-points 1 and 2 (p<0.001) but only in angles [51-80°] at assessment 3 (p<0.05). Between limb H/Q angle differences [33-45°] were shown at assessments 2 and 3. The ratio ranged from 1.60-0.74 depending on the angle tested. Angle-specific moment curves are useful for monitoring patterns of strength development during rehabilitation.
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Affiliation(s)
- Paul J Read
- Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.,Institute of Sport Exercise and Health, London, UK.,Division of Surgery & Interventional Science, University College London, London, UK.,School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Robin Trama
- Univ Lyon, Ucb Lyon 1, Laboratoire Interuniversitaire de Biologie de La Motricité, Villeurbanne, France
| | | | - Sean McAuliffe
- Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.,Health Research Board, Dublin, Ireland.,College of Health Sciences, Qatar University, Doha, Qatar
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Hurley ET, Mojica ES, Haskel JD, Mannino BJ, Alaia M, Strauss EJ, Jazrawi LM, Gonzlaez-Lomas G. Return to play testing following anterior cruciate reconstruction - A systematic review & meta-analysis. Knee 2022; 34:134-140. [PMID: 34896962 DOI: 10.1016/j.knee.2021.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 10/04/2021] [Accepted: 11/19/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study is to systematically review the evidence regarding return to sport evaluation following ACL reconstruction and evaluate the relationship between testing and secondary ACL injury. METHODS A systematic review of the literature with PubMed, Ovid MEDLINE, Cochrane Reviews, was performed on June, 2020 based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies were included if they compared outcomes following passing and failing RTP testing subsequent to ACLR. Clinical outcomes were compared, with all statistical analysis performed using Review Manager Version 5.3. Correlation was calculated with Spearman testing. RESULTS Overall, 8 studies with 1224 patients were included in the analysis. Overall, 34.3% (420/1224) patients passed the RTP testing. Those who passed the RTP testing had a statistically significant 47% lower rate of ACL graft re-rupture compared to those who did not pass the RTP testing (p = 0.03). However, there was a slightly higher, albeit not statistically significant, rate of contralateral ACL rupture in those who passed the RTP testing compared to those who did not (p = 0.42). There was a strong positive correlation between a high rate of patients passing the ACL RTP testing in studies and ACL graft rupture rate in those who failed (0.80). CONCLUSION Passing RTP testing following ACLR results in a lower rate of ACL graft rupture, but not contralateral ACL injury. Further evaluation and standardization of RTP testing is necessary in order to increase reliability in identifying patients at risk for re-injury after ACLR. LEVEL OF EVIDENCE Level of Evidence III.
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Felix ECR, Alonso AC, Brech GC, Fernandes TL, Almeida AMD, Luna NMS, Soares-Junior JM, Baracat EC, Hernandez AJ, Greve JMD. Is 12 months enough to reach function after athletes' ACL reconstruction: a prospective longitudinal study. Clinics (Sao Paulo) 2022; 77:100092. [PMID: 36087569 PMCID: PMC9464878 DOI: 10.1016/j.clinsp.2022.100092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 06/11/2022] [Accepted: 07/12/2022] [Indexed: 11/28/2022] Open
Abstract
CONTEXT Anterior Cruciate Ligament (ACL) injury is disabling in several sports because it causes knee instability and functional deficit. Usually, surgical treatments produce the best functional outcomes, however, sometimes they are not always able to fully restore stability and function. OBJECTIVE The objective of this study was to evaluate postural balance, muscle strength, and functional performance of young athletes with an ACL injury before and after ACL reconstruction. DESIGN This was a longitudinal observational prospective study. METHOD 74 athletes, 60 men, and 14 women, aged between 16 and 45, divided into two groups: the Group-Lesion of ACL with 34 athletes (24.1 years) and the Group-Control with 40 athletes without ACL lesion (27.7 years old). All volunteers performed posturography, isokinetic dynamometry, and the Hop-Test. The ACL-Group was evaluated before and 12 months after the reconstruction and the control group was evaluated once. RESULTS The Postoperative ACL Group presented greater limb symmetry, 0.96 (± 0.12), than the preoperative ACL Group, 0.87 (± 0.17), p < 0.01 in the Hop-Test. In the posturography, the displacement area was smaller in the postoperative ACL Group, 19.85 (± 5.74), compared to the preoperative ACL Group, 24.20 (± 8.97), p < 0.01. In isokinetic dynamometry the torque peak was greater in the postoperative ACL Group, 0.91 (± 0.14), than in the preoperative ACL Group, 0.74 (± 0.15), p < 0.01. CONCLUSION The functional outcomes increased in ACL reconstruction athletes after 12 months, but not at the same level as in the Control Group. The result indicates an incomplete functional recovery, adaptive changes in postural control after injury, reconstruction, and return to sport.
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Affiliation(s)
- Ellen Cristina Rodrigues Felix
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil.
| | - Angelica Castilho Alonso
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil; Graduate Program in Aging Sciences from the Universidade São Judas Tadeu (USJT), Santos, SP, Brazil
| | - Guilherme Carlos Brech
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil; Graduate Program in Aging Sciences from the Universidade São Judas Tadeu (USJT), Santos, SP, Brazil
| | - Tiago Lazzaretti Fernandes
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil; Sports Medicine Division, Institute of Orthopaedics and Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo; FIFA Medical Centre of Excellence, São Paulo, SP, Brazil
| | - Adriano Marques de Almeida
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil; Sports Medicine Division, Institute of Orthopaedics and Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo; FIFA Medical Centre of Excellence, São Paulo, SP, Brazil
| | - Natália Mariana Silva Luna
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil
| | - Jose Maria Soares-Junior
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil
| | - Edmund Chada Baracat
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil
| | - Arnaldo José Hernandez
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil; Sports Medicine Division, Institute of Orthopaedics and Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo; FIFA Medical Centre of Excellence, São Paulo, SP, Brazil
| | - Júlia Maria D'Andrea Greve
- Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil
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Anterior cruciate ligament reconstruction with ultrasound-guided femoral nerve block does not adversely affect knee extensor strength beyond that seen with intravenous patient-controlled analgesia at 3 and 6 months postoperatively. Knee 2022; 34:252-258. [PMID: 35077944 DOI: 10.1016/j.knee.2022.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 10/01/2021] [Accepted: 01/06/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND This study aimed to investigate the effect of anterior cruciate ligament (ACL) reconstruction with an ultrasound-guided femoral nerve block (FNB) on knee extensor strength weakness 3 and 6 months, and graft rupture in the 1 year following ACL reconstruction. METHODS One hundred and seven patients who underwent ACL reconstruction were included in this retrospective study. The patients were divided into two groups stratified by the method of postoperative pain management. The FNB group included 66 patients, and there were 41 patients in the intravenous patient-controlled analgesia (iv-PCA) group. The isokinetic peak torque of knee flexor and extensor was measured preoperative, 3 and 6 months after ACL reconstruction. Muscle strength measurements were performed using the BIODEX dynamometer at a velocity of 60°/s and 180°/s. Peak torque of knee extensor and flexor strength, estimated pre-injury capacity (EPIC), body weight ratio (BW), and graft rupture incidence were compared between the two groups. RESULTS There were no statistically significant differences in the knee extensor and flexor strength for all items at 3 and 6 months after ACL reconstruction. There was also not a statistically significant difference in the graft rupture incidence between the two groups: FNB group was two patients, 3.0% vs. iv-PCA group was one patient, 2.4% (p = 0.86). CONCLUSION ACL reconstruction with ultrasound-guided FNB does not affect knee extensor strength at 6 months, nor graft rupture at 1 year postoperatively.
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Potts G, Reid D, Larmer P. The effectiveness of preoperative exercise programmes on quadriceps strength prior to and following anterior cruciate ligament (ACL) reconstruction: A systematic review. Phys Ther Sport 2021; 54:16-28. [PMID: 34933208 DOI: 10.1016/j.ptsp.2021.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVES to evaluate the effectiveness of preoperative exercise programmes on quadriceps strength prior to and following anterior cruciate ligament (ACL) reconstruction. DESIGN Systematic review. METHODS a systematic review was undertaken, included studies were evaluated using the Modified Downs and Black checklist which is appropriate for determining the quality of randomised and non-randomised studies. Scientific databases searched included PubMED, EBSCO Health, CINAHL, Medline, and Cochrane Library databases from inception to March 2021. RESULTS Ten studies met the inclusion criteria. There were six randomised studies and four prospective studies. The level of evidence is categorised as 'limited' due to heterogenicity and only six studies reported quadriceps strength increases. Five studies demonstrated preoperative exercise of 4-16 weeks duration can significantly increase preoperative quadriceps strength. One study demonstrated preoperative OKC exercise produced significantly stronger preoperative quadriceps compared to CKC exercise. One study showed no between group (intervention vs control) quadriceps strength difference pre or 12 weeks postoperatively. CONCLUSIONS 4-16 weeks of preoperative exercise could increase quadriceps strength preoperatively but any persistent postoperative strength benefit from undertaking a standardised preoperative intervention is unclear. There is considerable variation and methodological limitations across the included studies and the composition of optimal preoperative ACLR exercise is currently unknown.
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Affiliation(s)
- Geoff Potts
- Faculty of Health and Environmental Sciences, School of Clinical Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand; KneeCare, 5 Akoranga Drive, Northcote, 0627, Auckland, New Zealand.
| | - Duncan Reid
- Faculty of Health and Environmental Sciences, School of Clinical Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand.
| | - Peter Larmer
- Faculty of Health and Environmental Sciences, School of Clinical Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand.
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Ebert JR, Edwards P, Joss B, Annear P, Radic R, D'Alessandro P. Isokinetic torque analysis demonstrates deficits in knee flexor and extensor torque in patients at 9-12 months after anterior cruciate ligament reconstruction, despite peak torque symmetry. Knee 2021; 32:9-18. [PMID: 34364253 DOI: 10.1016/j.knee.2021.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/12/2021] [Accepted: 07/18/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Lower limb strength asymmetry is associated with re-injury after anterior cruciate ligament reconstruction (ACLR). This study investigated limb symmetry indices (LSIs) during isokinetic knee extensor and flexor assessment after ACLR. METHODS Overall, 25 patients underwent isokinetic knee extensor and flexor strength assessment, 9-12 months after ACLR with a semitendinosus autograft. While patients were included if they presented with peak knee extensor (PKET) and flexor (PKFT) torque LSIs ≥ 90%, LSIs were calculated at designated points throughout the isokinetic torque range of motion, including: 15°, 30°, 45°, 60° and 75° (from 90° of knee flexion) during PKET and 15°, 30°, 45°, 60° and 75° (from full knee extension) during PKFT. T-tests investigated limb differences for PKET and PKFT, as well as at the final 75° assessment point during knee extension and flexion, between: (1) males and females, (2) those that did, or did not, undergo meniscal surgery, and (3) those undergoing ACLR on their dominant or non-dominant limb. RESULTS Significant differences between limbs were observed for PKET at 15° (p = 0.040) and 75° (p = 0.002), and for PKFT at 60° (p = 0.001) and 75° (p < 0.0001). No comparative differences (p > 0.05) were seen based on gender, meniscal surgery or whether ACLR was on the dominant or non-dominant limb. CONCLUSION Despite 100% of patients demonstrating PKET and PKFT LSIs ≥ 90%, LSI differences existed at designated points throughout the knee extensor and flexor torque range of motion. Analysis of torques throughout full range should be considered in future studies, as comparison of isolated peak measures miss strength deficits.
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Affiliation(s)
- Jay R Ebert
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, 35 Stirling Highway, Crawley, Western 6009, Australia; HFRC, 117 Stirling Highway, Nedlands, Western Australia 6009, Australia; Perth Orthopaedic & Sports Medicine Centre & Research Institute, West Perth, Western Australia 6005, Australia; Orthopaedic Research Foundation of Western Australia, Western Australia 6010, Australia.
| | - Peter Edwards
- School of Allied Health, Curtin University, Perth, Western Australia, Australia
| | - Brendan Joss
- HFRC, 117 Stirling Highway, Nedlands, Western Australia 6009, Australia
| | - Peter Annear
- Perth Orthopaedic & Sports Medicine Centre & Research Institute, West Perth, Western Australia 6005, Australia
| | - Ross Radic
- Perth Orthopaedic & Sports Medicine Centre & Research Institute, West Perth, Western Australia 6005, Australia
| | - Peter D'Alessandro
- Orthopaedic Research Foundation of Western Australia, Western Australia 6010, Australia
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Costley JAE, Miles JJ, King E, Daniels KAJ. Vertical jump impulse deficits persist from six to nine months after ACL reconstruction. Sports Biomech 2021; 22:123-141. [PMID: 34546153 DOI: 10.1080/14763141.2021.1945137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Later-stage rehabilitation following anterior cruciate ligament (ACL) reconstruction (ACLR) provides a valuable opportunity to target performance deficits before return to sport. This study aimed to: (1) evaluate bilateral counter-movement jump (CMJ) phase-specific impulse and isokinetic strength inter-limb asymmetry progression from 6 to 9 months post-ACLR; and (2) examine the extent to which individual changes in strength asymmetry could explain changes in impulse asymmetry. Male athletes (n = 44) with a hamstring tendon or bone-patellar tendon-bone autograft were tested 6 and 9 months post-ACLR. Two-way mixed-model ANOVAs were used to identify inter-session and inter-graft differences in CMJ phase-specific impulse asymmetries and knee isokinetic flexor and extensor strength asymmetries, as well as in absolute impulse and strength values of independent (ACLR/uninvolved) limbs. Linear regression models were used to assess the relationship between changes in impulse asymmetry and strength asymmetry. Reductions in strength asymmetry arose from improved ACLR-limb performance, whereas concentric impulse asymmetry reduced consequent to decreased uninvolved-limb performance and eccentric deceleration impulses decreased bilaterally. Graft type did not modulate findings. Changes in strength asymmetry had little or no ability to explain changes in impulse asymmetry. Consideration of approaches that may influence persisting deficits observed bi-laterally throughout vertical jumping performance post-ACLR may enhance rehabilitation practice.
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Affiliation(s)
- Jill A E Costley
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland
| | - Joshua J Miles
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Department for Health, University of Bath, Bath, UK
| | - Enda King
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Department of Life Sciences, Roehampton University, London, UK
| | - Katherine A J Daniels
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Queen's School of Engineering, University of Bristol, Bristol, UK.,Department of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, UK
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Current perspectives and clinical practice of physiotherapists on assessment, rehabilitation, and return to sport criteria after anterior cruciate ligament injury and reconstruction. An online survey of 538 physiotherapists. Phys Ther Sport 2021; 52:103-114. [PMID: 34479178 DOI: 10.1016/j.ptsp.2021.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To evaluate the perspectives and clinical practice of physiotherapists regarding rehabilitation after anterior cruciate ligament reconstruction (ACLR). DESIGN Online survey. SETTING Survey platform. PARTICIPANTS Greek physiotherapists. OUTCOME MEASURES The survey consisted of 7 sections: participant demographics, importance of ACLR rehabilitation, clinical measurements, practice, criteria to progress rehabilitation, return to running and return to sport. RESULTS Significant variability in measures and criteria used for clinical decision-making were found including: limb symmetry in strength and function, knee range of motion and effusion, progression, and return to sport criteria. The majority of the practitioners (28.3%) extrapolate knee strength from hop capacity. Return to running ranged from 3 to 5 months post-operatively reflecting that this was tied to physical capacities, not time from surgery. 70.0% of the Greek physiotherapists would allow return to sport ≤9 months after ACLR. Agreement was found in using: physical measures, function, and dynamic stability in ACLR rehabilitation, but the mode and interpretation varied substantially. Less than 29.0% of the physiotherapists reported using patient-reported outcome measures in their decision-making. CONCLUSION Current ACLR rehabilitation practices in Greece are largely not aligned with the contemporary scientific evidence and guidelines.
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Ogborn D, McRae S, Larose G, Leiter J, Brown H, MacDonald P. Knee flexor strength and symmetry vary by device, body position and angle of assessment following ACL reconstruction with hamstring grafts at long-term follow-up. Knee Surg Sports Traumatol Arthrosc 2021; 31:1658-1664. [PMID: 34477895 DOI: 10.1007/s00167-021-06712-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 08/16/2021] [Indexed: 12/31/2022]
Abstract
PURPOSE Persistent deficits in knee flexor strength following harvest of semitendinosus and gracilis for anterior cruciate ligament reconstruction are inconsistent in the literature. Variation in methodology, including measuring torque at higher knee flexion angles may partially explain these discrepant findings. The objective of this study was to determine whether positioning (seated vs supine), consideration of peak or joint-angle-specific torque or device (Isokinetic Dynamometer vs NordBord Hamstring Dynamometer) impact the magnitude of knee flexor strength differences between limbs. METHODS Participants (n = 31, 44.2 ± 10.7 years,) who were at 14 ± 4.4 years follow-up for unilateral ACL reconstruction with semitendinosus/gracilis grafts completed the ACL Quality of Life outcome and an assessment including isokinetic concentric knee extensor and flexor strength in seated and supine with peak torque and torque at 60° (T60) and 75° (T75) knee flexion measured, followed by an eccentric Nordic Hamstring Curl. RESULTS Isokinetic concentric knee flexor torque was reduced in supine relative to seated, on the reconstructed limb against the unaffected, and at higher degrees of knee flexion relative to peak torque (T60 and T75 against peak torque). Limb symmetry varied by methodology (F(6,204) = 8.506, p = 0.001) with reduced symmetry in supine T75 against all measures (71.1 ± 16.5%, p < 0.05), supine T60 against seated peak torque (82.7 ± 14.2%, p < 0.05), and the NordBord was lower than seated peak torque that was not statistically significant (83.9 ± 12.8%, n.s.). Knee extensor peak (r2 = 0.167 (F(1,27) = 5.3, p = 0.03) and Nordic curl eccentric torque (r2 = 0.267, F(2,26) = 4.736, p = 0.02) were predictors of ACL-QoL score, although a combined model did not improve over Nordic torque alone. CONCLUSION Limb symmetry cannot be assumed in clinical practice across differing assessment methods for knee flexor strength as deficits are greatest in the supine position with torque measured at 75° knee flexion. Isokinetic knee extensor and eccentric knee flexor torque during the Nordic hamstring curl were predictors of ACL-QoL scoring and should be considered alongside patient-reported outcomes for patients following ACL reconstruction with hamstring grafts. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Dan Ogborn
- Pan Am Clinic Foundation, 75 Poseidon Bay, Office 307, Winnipeg, MB, R3M 3E4, Canada. .,College of Rehabilitation Sciences, Rady Faculty of Health Sciences, Winnipeg, MB, Canada.
| | - Sheila McRae
- Pan Am Clinic Foundation, 75 Poseidon Bay, Office 307, Winnipeg, MB, R3M 3E4, Canada.,College of Rehabilitation Sciences, Rady Faculty of Health Sciences, Winnipeg, MB, Canada.,Department of Surgery, Rady Faculty of Health Sciences, Winnipeg, MB, Canada
| | - Gabriel Larose
- Department of Surgery, Rady Faculty of Health Sciences, Winnipeg, MB, Canada
| | - Jeff Leiter
- Pan Am Clinic Foundation, 75 Poseidon Bay, Office 307, Winnipeg, MB, R3M 3E4, Canada
| | - Holly Brown
- Pan Am Clinic Foundation, 75 Poseidon Bay, Office 307, Winnipeg, MB, R3M 3E4, Canada
| | - Pete MacDonald
- Pan Am Clinic Foundation, 75 Poseidon Bay, Office 307, Winnipeg, MB, R3M 3E4, Canada.,Department of Surgery, Rady Faculty of Health Sciences, Winnipeg, MB, Canada
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Hunnicutt JL, Xerogeanes JW, Tsai LC, Sprague PA, Newsome M, Slone HS, Lyle MA. Terminal knee extension deficit and female sex predict poorer quadriceps strength following ACL reconstruction using all-soft tissue quadriceps tendon autografts. Knee Surg Sports Traumatol Arthrosc 2021; 29:3085-3095. [PMID: 33175281 DOI: 10.1007/s00167-020-06351-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE The all-soft tissue quadriceps tendon (QT) autograft is becoming increasingly popular for ACL reconstruction (ACLR); however, studies reporting strength recovery and early outcomes after QT autograft are limited with patient samples composed of predominantly males. The primary purpose was to characterize early, sex-specific recovery of strength, range of motion (ROM), and knee laxity in a large cohort of patients undergoing primary ACLR with standardized harvest technique of the all-soft tissue QT autograft. The secondary purpose was to examine the influence of demographic factors and clinical measures on 6-month quadriceps strength. METHODS Patients 14-25 years who underwent primary, unilateral ACLR with all-soft tissue QT autografts were prospectively followed. Knee laxity and ROM were collected at 6 weeks, 3 and 6 months; while, quadriceps normalized torques and limb symmetry indices (LSI) were collected at 3 and 6 months using isokinetic dynamometry at 60°/s. Two-way ANOVAs with repeated measures were conducted to determine recovery over time and between sexes. Stepwise linear multiple regressions were conducted to determine predictors of 6-month quadriceps strength. RESULTS Three-hundred and twenty patients were included (18 ± 3 years; 156 males:164 females; BMI = 24 ± 4 kg/m2) with no early graft failures within the study period. For strength, there were significant main effects of time (p < 0.001) and sex (p < 0.001), indicating similar improvement from 3 to 6 months with males demonstrating greater quadriceps LSI (6 months: 72.1 vs 63.3%) and normalized strength (6 months: 2.0 vs 1.6 Nm/kg). A significantly higher proportion of females had knee extension ROM deficits ≥ 5° compared to males at 6 weeks (61 vs 39%; p = 0.002). Female sex and 3-month extension ROM deficits were identified as significant predictors of 6-month quadriceps LSI (R2 = 0.083; p < 0.001). Female sex, BMI, and 6-week extension ROM deficits were identified as significant predictors of 6-month normalized quadriceps strength (R2 = 0.190; p < 0.001). CONCLUSIONS Females had decreased quadriceps strength and greater extension ROM deficits at 3 and 6 months following ACLR using all-soft tissue QT autografts. Female sex, higher BMI, and loss of extension ROM were independent predictors of poorer quadriceps strength at 6 months. There were no early graft failures, and laxity remained within normal ranges for both males and females. Surgeons and rehabilitation clinicians should be aware of the increased risk of postoperative loss of extension ROM in females and its implications on quadriceps strength recovery. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Jennifer L Hunnicutt
- Department of Orthopaedics, School of Medicine, Emory University, 1968 Hawks Lane, Atlanta, GA, 30329, USA.
| | - John W Xerogeanes
- Department of Orthopaedics, School of Medicine, Emory University, 1968 Hawks Lane, Atlanta, GA, 30329, USA.,Emory Orthopaedics and Spine Center, Emory Healthcare, Atlanta, USA
| | - Liang-Ching Tsai
- Department of Physical Therapy, College of Nursing and Health Professions, Georgia State University, Atlanta, USA
| | - Peter A Sprague
- Division of Physical Therapy, School of Medicine, Emory University, Atlanta, USA
| | - Michael Newsome
- Emory Orthopaedics and Spine Center, Emory Healthcare, Atlanta, USA
| | - Harris S Slone
- Department of Orthopaedics, College of Medicine, Medical University of South Carolina, Charleston, USA
| | - Mark A Lyle
- Division of Physical Therapy, School of Medicine, Emory University, Atlanta, USA
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Sato H, Nishimura Y, Tsuboi H, Minoshima Y, Sakata T, Umezu Y, Tajima F. Differences in fatigability of vastus medialis muscle between patients with limb symmetry index of <90% and ≥90% after chronic anterior cruciate ligament reconstruction. Knee 2021; 31:39-45. [PMID: 34111800 DOI: 10.1016/j.knee.2021.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 03/02/2021] [Accepted: 05/19/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND A limb symmetry index (LSI) of ≥90% for the quadriceps is recommended for return to sports activity after anterior cruciate ligament reconstruction (ACLR). However, there is no information on differences in muscle fatigability between patients with LSI of <90% and ≥90%. The aim of this study was to assess the difference in quadriceps muscle fatigability on the involved side between post-ACLR patients with LSI of <90% and ≥90%. We hypothesized that there were differences between the two groups in muscle fatigability on the involved side reflecting difference in muscle fiber composition in the vastus medialis (VM) muscle. METHODS The study subjects were 18 adult men who had undergone ACLR followed by rehabilitation therapy. LSI was <90% in 10 and ≥90% in 8 adult men. Surface electromyography (EMG) of the VM muscle was recorded during sustained quadriceps muscle isometric contraction. The median frequency (MF) was computed from the raw EMG signal using fast Fourier transform spectrum analysis. The MF slope was also calculated. RESULTS There were no differences in anthropometric characteristics, time since ACLR, anterior tibial translation and peak torque of knee extension on the involved side between the two groups. However, MF slope was significantly lower in the LSI ≥ 90% group than the <90% group. CONCLUSION Our results demonstrated fatigue-resistant vastus medialis in post-ACLR patients with LSI ≥90% compared to those with LSI <90%. The finding adds support to the use of ≥90% as the cutoff value for LSI for return of post-ACLR patients to sports activity.
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Affiliation(s)
- Hideyuki Sato
- Department of Rehabilitation Medicine, Wakayama Medical University, Wakayama City, Wakayama 641-8509, Japan
| | - Yukihide Nishimura
- Department of Rehabilitation Medicine, Iwate Medical University, Yahaba-cho Shiwa-gun, Iwate 028-3694, Japan
| | - Hiroyuki Tsuboi
- Department of Rehabilitation Medicine, Iwate Medical University, Yahaba-cho Shiwa-gun, Iwate 028-3694, Japan
| | - Yuta Minoshima
- Department of Rehabilitation Medicine, Wakayama Medical University, Wakayama City, Wakayama 641-8509, Japan
| | - Takeshi Sakata
- Department of Orthopaedic Surgery, Kitade Hospital, Gobo City, Wakayama 644-0011, Japan
| | - Yuichi Umezu
- Department of Rehabilitation, Kokura Rehabilitation Hospital, 1-5-1 Sinozaki Kokurakita-ku, Kitakyushu City, Fukuoka 803-0861, Japan
| | - Fumihiro Tajima
- Department of Rehabilitation Medicine, Wakayama Medical University, Wakayama City, Wakayama 641-8509, Japan.
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67
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Roman DP, Ness BM, Giampetruzzi N, Cleland JA, Weaver A. Knee strength outcomes in adolescents by age and sex during late-stage rehabilitation after anterior cruciate ligament reconstruction. Phys Ther Sport 2021; 51:102-109. [PMID: 34311174 DOI: 10.1016/j.ptsp.2021.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/16/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To determine if knee strength differences exist according to age group and sex among adolescents during late-stage anterior cruciate ligament reconstruction (ACLR) rehabilitation. DESIGN Retrospective cohort study. METHODS Consecutive patients who had undergone ACLR with a hamstring autograft completed isokinetic knee strength assessment. Patients were categorized into early (ages 11-14 years) and middle (ages 15-17 years) adolescence. A two-way MANOVA was used to examine strength differences according to age group and sex. RESULTS 144 patients were included in the analysis (56.9% females, age = 15.3 ± 1.5 years; days since surgery = 228.2 ± 41.2). Differences in quadriceps peak torque were identified between age groups on the involved (p = 0.001) and uninvolved limbs (p < 0.001), however, no differences in quadriceps peak torque were found between age groups when normalized to body mass (p = 0.16-0.49). Differences between groups according to sex were identified for each strength outcome (p < 0.01), with decreased normalized quadriceps (12-13%) and hamstring (13-16%) peak torque for females. No interactions between age group and sex were noted, F(8, 133) = 1.48, p = 0.17. CONCLUSION Early adolescents produced less quadriceps and hamstring peak torque compared to middle adolescents after ACLR. No differences were found between age groups when normalized to body mass.
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Affiliation(s)
- Dylan P Roman
- Connecticut Children's, Sports Physical Therapy, Farmington, CT, United States.
| | - Brandon M Ness
- Doctor of Physical Therapy Program, Tufts University School of Medicine, Boston, MA, United States
| | | | - Joshua A Cleland
- Doctor of Physical Therapy Program, Tufts University School of Medicine, Boston, MA, United States
| | - Adam Weaver
- Connecticut Children's, Sports Physical Therapy, Farmington, CT, United States
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Alt T, Breitenmoser T, Vonhoegen J, Horn D, Severin J, Nolte K, Knicker AJ, Jaitner T, Strüder HK. The dynamic control ratio masks bilateral asymmetries - A gender-specific analysis of 264 healthy and ACL-injured athletes. Res Sports Med 2021; 30:1-18. [PMID: 34187258 DOI: 10.1080/15438627.2021.1943389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Isokinetic strength tests are frequently applied to assess anterior cruciate ligament (ACL) rehabilitation processes. However, diverging methodologies cause misleading conclusions. This cross-sectional study evaluated the effects of gender (male vs. female), group (healthy vs. ACL-injured) and limb (dominant/healthy vs. non-dominant/ACL-injured) on thigh muscle balance of 138 female and 126 male athletes (50% ACL-injured, averagely 12.8 months after surgery). Balance was analysed between legs (bilateral asymmetry) and between concentric knee extensor (Qcon) and eccentric knee flexor strength (Hecc) (DCR = dynamic control ratio, DCRe = DCR at the equilibrium point). Females were generally 17-27% weaker than males. Independent of gender and time after surgery, ACL-injured athletes demonstrated bilateral asymmetries (7-20%) in peak (PMQcon, PMHecc) and DCRe moments (p ≤0.030; 0.018≤ηp2≤0.215). ACL-injured athletes' affected (24-28%) and unaffected (12-24%) hamstrings and quadriceps peak moments were significantly weaker compared to healthy athletes (p<0.001; 0.061≤ηp2≤0.362). The bilateral asymmetries of PMQcon significantly decreased from early to late self-reported rehabilitation phases (p<0.001; ηp2=0.158). Peak and DCRe moments detected bilateral asymmetries, whereas DCR revealed ~50% false negative attributions. This knowledge provides guidance for future design and interpretation of isokinetic tests.
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Affiliation(s)
- Tobias Alt
- Department of Biomechanics, Performance Analysis and Strength & Conditioning, Olympic Training and Testing Centre Westphalia, Dortmund, Germany.,Institute of Movement and Neuroscience, German Sport University, Cologne, Germany
| | - Thomas Breitenmoser
- Institute of Movement and Neuroscience, German Sport University, Cologne, Germany
| | - Jan Vonhoegen
- Department of Orthopaedics and Sports Traumatology, Klinik am Ring, Cologne, Germany
| | - Dennis Horn
- Institute of Movement and Neuroscience, German Sport University, Cologne, Germany
| | - Jannik Severin
- Institute of Movement and Neuroscience, German Sport University, Cologne, Germany
| | - Kevin Nolte
- Institute for Sport and Sport Science, TU Dortmund University, Dortmund, Germany
| | - Axel J Knicker
- Institute of Movement and Neuroscience, German Sport University, Cologne, Germany.,Department of Arthromuscular Performance Diagnostics, Research Centre for Elite Sports momentum, Cologne
| | - Thomas Jaitner
- Institute for Sport and Sport Science, TU Dortmund University, Dortmund, Germany
| | - Heiko K Strüder
- Institute of Movement and Neuroscience, German Sport University, Cologne, Germany.,Department of Arthromuscular Performance Diagnostics, Research Centre for Elite Sports momentum, Cologne
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Isokinetic Profile of Elite Serbian Female Judoists. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18136988. [PMID: 34210088 PMCID: PMC8297175 DOI: 10.3390/ijerph18136988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/03/2021] [Accepted: 06/22/2021] [Indexed: 11/17/2022]
Abstract
Elite judo athletes undergo vigorous training to achieve outstanding results. In pursuit of achieving competitive success, the occurrence of injuries amongst judo athletes is not rare. The study aimed to perform a knee flexors and extensors isokinetic torque analysis in elite female judo athletes. Fifty-eight elite female judo athletes of the Serbian national team (21.02 ± 3.11 years; 62.36 ± 11.91 kg, 165.04 ± 10.24 cm, training experience 12.72 ± 2.98 years) volunteered to participate in this study. The range of motion (ROM) was set at 90°. Testing was performed in a concentric-concentric mode for the testing speed of 60 °/s. Five maximal voluntary contractions of knee extensors and knee flexors muscle groups were measured for both legs. The obtained data showed a statistically significant difference in absolute torque values among different categories as heavier athletes demonstrated higher values. Post hoc analysis showed a significant difference between weight categories, as heavier athletes demonstrated higher values, while no significant differences in normalized torque values for different weight categories were observed. The implementation of new elements and training modalities may improve performance and prevent lateral asymmetry, thus reducing the risk of injury.
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70
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Horteur C, Rubens Duval B, Merlin A, Cognault J, Ollivier M, Pailhe R. Comparison of knee extensor strength after anterior cruciate ligament reconstruction using either quadriceps tendon or hamstring tendon autografts. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:857-865. [PMID: 34152474 DOI: 10.1007/s00590-021-03062-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/14/2021] [Indexed: 01/22/2023]
Abstract
PURPOSE The aim was to assess the consequences of quadriceps tendon (QT) harvest on knee extensor strength after anterior cruciate ligament reconstruction (ACL-R) compared to hamstring tendon (HT) autograft. Secondary objectives were to evaluate flexor strength recovery and search for correlation between strength status and functional outcome. METHODS This a retrospective cohort of 44 patients who underwent ACL-R using either QT (25) or HT (19). Median age was 31.1 years. We assessed thigh muscle strength thanks to concentric iso kinetic evaluation (peak torque) at 60°.s-1, 180°.s-1, 240°.s-1 and eccentric at 30°.s-1, 7 months on average after surgery. Muscle strength values were compared to the uninjured leg in order to calculate a percentage of deficit as well as unilateral hamstring/quadriceps (H/Q) ratios. KOOS score was obtained at a mean follow-up of 18 months. RESULTS Extensor strength deficit (concentric 60°.s-1) was one average 33.1% in the QT group and 28.2% in the HT group (p = 0.42). Difference of flexor strength deficit (concentric 60°.s-1) was close to be significant with 5% and 12% of deficit in the QT and HT group, respectively (p = 0.1), and statistically significant for high angular velocity (14% versus 3% at 240°.s-1, p = 0.04). H/Q ratios were comparable in both groups ranging from 0.62 to 0.78. Quadriceps muscle strength deficit was negatively correlated with the KOOS score (Pearson coefficient = -0.4; p = 0.005). CONCLUSION QT autograft harvest does not yield significant quadriceps muscle weakness after ACL-R, which appear to be a pejorative factor for functional outcome. LEVEL OF EVIDENCE IV, Retrospective study.
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Affiliation(s)
- C Horteur
- Department of Orthopaedic Surgery and Sport Traumatology, Grenoble South Teaching Hospital, 38130, Echirolles, France.
| | - B Rubens Duval
- Department of Orthopaedic Surgery and Sport Traumatology, Grenoble South Teaching Hospital, 38130, Echirolles, France
| | - A Merlin
- Sport Lab Kine - 9 bis Rue Conrad Killian, 38950, Saint-Martin-le-Vinoux, France
| | - J Cognault
- Clinique du Parc, Boulevard de Stalingrad, 69006, Lyon, France
| | - M Ollivier
- Department of Orthopedics and Traumatology, Institute for Locomotion, ISM, Aix Marseille Univ, APHM, CNRS, Sainte-Marguerite Hospital, Marseille, France
| | - R Pailhe
- Department of Orthopaedic Surgery and Sport Traumatology, Grenoble South Teaching Hospital, 38130, Echirolles, France
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Baumgart C, Kurz E, Freiwald J, Hoppe MW. Effects of Hip Flexion on Knee Extension and Flexion Isokinetic Angle-Specific Torques and HQ-Ratios. SPORTS MEDICINE-OPEN 2021; 7:41. [PMID: 34120217 PMCID: PMC8197694 DOI: 10.1186/s40798-021-00330-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 05/19/2021] [Indexed: 11/28/2022]
Abstract
Background and Methods During isokinetic knee strength testing, the knee flexion angles that correspond to the measured torque values are rarely considered. Additionally, the hip flexion angle during seated testing diverges from that in the majority of daily life and sporting activities. Limited information concerning the influence of hip angle, muscle contraction mode, and velocity on the isokinetic knee strength over the entire range of motion (ROM) is available. Twenty recreational athletes (10 females, 10 males; 23.3 ± 3.2 years; 72.1 ± 16.5 kg; 1.78 ± 0.07 m) were tested for isokinetic knee flexion and extension at 10° and 90° hip flexion with the following conditions: (i) concentric at 60°/s, (ii) concentric at 180°/s, and (iii) eccentric at 60°/s. The effects of hip angle, contraction mode, and velocity on angle-specific torques and HQ-ratios as well as conventional parameters (peak torques, angles at peak torque, and HQ-ratios) were analyzed using statistical parametric mapping and parametric ANOVAs, respectively. Results Generally, the angle-specific and conventional torques and HQ-ratios were lower in the extended hip compared to a flexed hip joint. Thereby, in comparison to the knee extension, the torque values decreased to a greater extent during knee flexion but not consistent over the entire ROM. The torque values were greater at the lower velocity and eccentric mode, but the influence of the velocity and contraction mode were lower at shorter and greater muscle lengths, respectively. Conclusions Isokinetic knee strength is influenced by the hip flexion angle. Therefore, a seated position during testing and training is questionable, because the hip joint is rarely flexed at 90° during daily life and sporting activities. Maximum knee strength is lower in supine position, which should be considered for training and testing. The angle-specific effects cannot be mirrored by the conventional parameters. Therefore, angle-specific analyses are recommended to obtain supplemental information and consequently to improve knee strength testing.
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Affiliation(s)
- Christian Baumgart
- Department of Movement and Training Science, University of Wuppertal, Fuhlrottstraße 10, 42119, Wuppertal, Germany.
| | - Eduard Kurz
- Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Str. 40, 06097, Halle (Saale), Germany
| | - Jürgen Freiwald
- Department of Movement and Training Science, University of Wuppertal, Fuhlrottstraße 10, 42119, Wuppertal, Germany
| | - Matthias Wilhelm Hoppe
- Institute of Movement and Training Science I, University of Leipzig, Jahnallee 59, 04109, Leipzig, Germany
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72
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Dauty M, Edouard P, Menu P, Mesland O, Fouasson-Chailloux A. Isokinetic quadriceps symmetry helps in the decision to return to running after anterior cruciate ligament reconstruction. Ann Phys Rehabil Med 2021; 65:101543. [PMID: 34091057 DOI: 10.1016/j.rehab.2021.101543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/05/2021] [Accepted: 04/14/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Marc Dauty
- CHU Nantes, Physical Medicine and Rehabilitation Center, University Hospital of Nantes, France; CHU Nantes, Service de Médecine du Sport, University Hospital of Nantes, France; INSERM UMR U1229/RMeS, Regenerative Medicine and Skeleton - Nantes University, France
| | - Pascal Edouard
- Inter-university Laboratory of Human Movement Science (LIBM EA 7424), University of Lyon, University Jean-Monnet, 42023 Saint Étienne, France; Department of Clinical and Exercise Physiology, Sports Medicine Unit, University Hospital of Saint-Etienne, Faculty of Medicine, Saint-Étienne, France
| | - Pierre Menu
- CHU Nantes, Physical Medicine and Rehabilitation Center, University Hospital of Nantes, France; CHU Nantes, Service de Médecine du Sport, University Hospital of Nantes, France; INSERM UMR U1229/RMeS, Regenerative Medicine and Skeleton - Nantes University, France
| | - Olivier Mesland
- CHU Nantes, Physical Medicine and Rehabilitation Center, University Hospital of Nantes, France; INSERM UMR U1229/RMeS, Regenerative Medicine and Skeleton - Nantes University, France
| | - Alban Fouasson-Chailloux
- CHU Nantes, Physical Medicine and Rehabilitation Center, University Hospital of Nantes, France; CHU Nantes, Service de Médecine du Sport, University Hospital of Nantes, France; INSERM UMR U1229/RMeS, Regenerative Medicine and Skeleton - Nantes University, France.
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73
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Ebert JR, Edwards P, Preez LD, Furzer B, Joss B. Knee extensor strength, hop performance, patient-reported outcome and inter-test correlation in patients 9-12 months after anterior cruciate ligament reconstruction. Knee 2021; 30:176-184. [PMID: 33940305 DOI: 10.1016/j.knee.2021.04.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/23/2021] [Accepted: 04/09/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Hop performance and isokinetic knee extensor strength (IKES) asymmetry are associated with re-injury after anterior cruciate ligament reconstruction (ACLR). This study investigated deficits after ACLR, and which hop tests are most correlated with IKES and patient-reported outcome measures (PROMs). METHODS 50 patients were assessed 9-12 months after ACLR using the International Knee Documentation Committee (IKDC) and ACL Return to Sport after Injury (ACL-RSI) scores. Peak IKES and eight hop tests were assessed: single (SHD), triple (THD) and triple crossover (TCHD) hop for distance, 6 m timed hop (6MTH), single medial (MHD) and single lateral (LHD) hop for distance, single countermovement jump (SLCMJ) and timed speedy hop (SHT). The percentage of patients with limb symmetry indices (LSIs) < 90% was reported. Pearson's correlations investigated the correlation between PROMs, IKES and hop LSIs. RESULTS The majority (80%) of patients had IKES LSIs < 90%. While 12-14% of patients demonstrated LSIs < 90% for the SHD, 6MTH, THD and TCHD, 52-80% demonstrated LSIs < 90% for the other hop tests. The IKES LSI was significantly different (p < 0.05) from all hop LSIs, besides the SLCMJ (p = 0.638). Large correlations were only observed between the IKES LSI and the SLCMJ (r = 0.82), MHD (r = 0.71) and LHD (r = 0.53). The SLCMJ, MHD and IKES LSIs demonstrated the largest significant correlations with the IKDC (r = 0.51-0.53) and ACL-RSI (r = 0.38-0.40). CONCLUSIONS Hop tests such as the MHD and SLCMJ may present a more practical alternative to quantifying peak IKES, especially in the absence of more sophisticated testing equipment. While not surrogates as such, these selective hop measures may better inform the clinician as to whether significant underlying quadriceps deficits are still present throughout the post-operative rehabilitation period.
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Affiliation(s)
- Jay R Ebert
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia; HFRC, 117 Stirling Highway, Nedlands, Western Australia 6009, Australia.
| | - Peter Edwards
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Luke Du Preez
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - Bonnie Furzer
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - Brendan Joss
- HFRC, 117 Stirling Highway, Nedlands, Western Australia 6009, Australia
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Jiang H, Zhang L, Zhang RY, Zheng QJ, Li MY. Comparison of hamstring and quadriceps strength after anatomical versus non-anatomical anterior cruciate ligament reconstruction: a retrospective cohort study. BMC Musculoskelet Disord 2021; 22:452. [PMID: 34006272 PMCID: PMC8132361 DOI: 10.1186/s12891-021-04350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 05/07/2021] [Indexed: 11/25/2022] Open
Abstract
Background Strength recovery of injured knee is an important parameter for patients who want to return to sport after anterior cruciate ligament reconstruction (ACLR). Comparison of muscle strength between anatomical and non-anatomical ACLR has not been reported. Purpose To evaluate the difference between anatomical and non-anatomical single-bundle ACLR in hamstring and quadriceps strength and clinical outcomes. Methods Patients received unilateral primary single-bundle hamstring ACLR between January 2017 to January 2018 were recruited in this study. Patients were divided into anatomical reconstruction group (AR group) and non-anatomical reconstruction group (NAR group) according to femoral tunnel aperture position. The hamstring and quadriceps isokinetic strength including peak extension torque, peak flexion torque and H/Q ratio were measured at an angular velocity of 180°/s and 60°/s using an isokinetic dynamometer. The isometric extension and flexion torques were also measured. Hamstring and quadriceps strength were measured preoperatively and at 3, 6, and 12 months after surgery. Knee stability including Lachman test, pivot-shift test, and KT-1000 measurement and subjective knee function including International Knee Documentation Committee (IKDC) and Lysholm scores were evaluated during the follow-up. Results Seventy-two patients with an average follow-up of 30.4 months (range, 24–35 months) were included in this study. Thirty-three were in AR group and 39 in NAR group. The peak knee flexion torque was significant higher in AR group at 180°/s and 60°/s (P < 0.05 for both velocity) at 6 months postoperatively and showed no difference between the two groups at 12 months postoperatively. The isometric knee extension torque was significant higher in AR group at 6 months postoperatively (P < 0.05) and showed no difference between the two groups at 12 months postoperatively. No significant differences between AR group and NAR group were found regarding knee stability and subjective knee function evaluations at follow-up. Conclusions Compared with non-anatomical ACLR, anatomical ACLR showed a better recovery of hamstring and quadriceps strength at 6 months postoperatively. However, the discrepancy on hamstring and quadriceps strength between the two groups vanished at 1 year postoperatively.
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Affiliation(s)
- Hai Jiang
- Department of Orthopedic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, NO. 106, Zhongshan 2nd Road, 510000, Guangzhou, China
| | - Lei Zhang
- Department of Rehabilitation, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, NO. 106, Zhongshan 2nd Road, 510000, Guangzhou, China
| | - Rui-Ying Zhang
- Department of Orthopedic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, NO. 106, Zhongshan 2nd Road, 510000, Guangzhou, China
| | - Qiu-Jian Zheng
- Department of Orthopedic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, NO. 106, Zhongshan 2nd Road, 510000, Guangzhou, China.
| | - Meng-Yuan Li
- Department of Orthopedic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, NO. 106, Zhongshan 2nd Road, 510000, Guangzhou, China.
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Roe C, Jacobs C, Hoch J, Johnson DL, Noehren B. Test Batteries After Primary Anterior Cruciate Ligament Reconstruction: A Systematic Review. Sports Health 2021; 14:205-215. [PMID: 33896240 DOI: 10.1177/19417381211009473] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
CONTEXT There is a lack of consensus regarding test batteries for return to sport (RTS) after anterior cruciate ligament reconstruction (ACLR). OBJECTIVE To report the RTS test batteries for individuals after ACLR and to examine alignment with the American Academy of Orthopaedic Surgeons (AAOS) Appropriate Use Criteria (AUC). Finally, to examine how published RTS batteries prior to the AAOS AUC (2010-2015) compared with those after publication of the AUC (2016-2020). DATA SOURCE A systematic search of PubMed (2010-2020). STUDY SELECTION Studies were included if they were published from 2010 to 2020, patients underwent primary ACLR and were tested between 6 months and 2 years postoperatively and included a minimum of 2 assessments. Studies were excluded if patients were tested outside the designated time; had undergone a revision, contralateral, or multiligament injury; included healthy participants; were level 5 evidence or the study was a systematic review. A total of 1012 articles were reviewed and 63 met the criteria. STUDY DESIGN Systematic review. LEVEL OF EVIDENCE Level 4. DATA EXTRACTION Information regarding the RTS batteries and patient demographics were extracted from the included articles. RESULTS A total of 63 studies met the inclusion and exclusion criteria (22 from 2010-2015 and 41 from 2016-2020). The most common RTS batteries included the hop test, quadriceps strength test, and patient-reported outcome measures. No study met all 7 AUC; the most common criteria met were functional skills (98.4%), followed by confidence (22.2%), then range of motion and knee stability (20.6%). CONCLUSION The test batteries in the current literature show high variability and a lack of essential components necessary for RTS. No study met the AUC guidelines, suggesting a disconnect between recommended guidelines and clinical practice. Test battery research has expanded over the past decade; however, standardized, clinically applicable batteries that encompass all criteria are needed.
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Affiliation(s)
- Chelsey Roe
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
| | - Cale Jacobs
- Department of Orthopedic Surgery & Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Johanna Hoch
- Department of Athletic Training and Clinical Nutrition, University of Kentucky, Lexington, Kentucky
| | - Darren L Johnson
- Department of Orthopedic Surgery & Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Brian Noehren
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
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Faleide AGH, Magnussen LH, Strand T, Bogen BE, Moe-Nilssen R, Mo IF, Vervaat W, Inderhaug E. The Role of Psychological Readiness in Return to Sport Assessment After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2021; 49:1236-1243. [PMID: 33656938 PMCID: PMC8020301 DOI: 10.1177/0363546521991924] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Knowledge about the predictive value of return to sport (RTS) test batteries applied after anterior cruciate ligament reconstruction (ACLR) is limited. Adding assessment of psychological readiness has been recommended, but knowledge of how this affects the predictive ability of test batteries is lacking. PURPOSE To examine the predictive ability of a RTS test battery on return to preinjury level of sport and reinjury when evaluation of psychological readiness was incorporated. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS A total of 129 patients were recruited 9 months after ACLR. Inclusion criteria were age ≥16 years and engagement in sports before injury. Patients with concomitant ligamentous surgery or ACL revision surgery were excluded. Baseline testing included single-leg hop tests, isokinetic strength tests, the International Knee Documentation Committee (IKDC) Subjective Knee Form 2000, a custom-made RTS questionnaire, and the Anterior Cruciate Ligament-Return to Sport after Injury (ACL-RSI) scale. The RTS criteria were IKDC 2000 score ≥85% and ≥85% leg symmetry index on hop and strength test. At a 2-year follow-up evaluation, further knee surgery and reinjuries were registered and the RTS questionnaire was completed again. Regression analyses and receiver operating characteristic analyses were performed to study the predictive ability of the test battery. RESULTS Out of the 103 patients who completed the 2-year follow-up, 42% returned to their preinjury level of sport. ACL-RSI 9 months after surgery (odds ratio [OR], 1.03) and age (OR, 1.05) predicted RTS. An ACL-RSI score <47 indicated that a patient was at risk of not returning to sport (area under the curve 0.69; 95% CI, 0.58-0.79), with 85% sensitivity and 45% specificity. The functional tests did not predict RTS. Six patients sustained ACL reinjuries and 7 underwent surgery for other knee complaints/injuries after RTS testing. None of the 29 patients who passed all RTS criteria, and were therefore cleared for RTS, sustained a second knee injury. CONCLUSION ACL-RSI and age were predictors of 2-year RTS, while functional tests were not informative. Another main finding was that none of the patients who passed the 85% RTS criteria sustained another knee injury.
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Affiliation(s)
- Anne Gro Heyn Faleide
- Haraldsplass Deaconess Hospital, Bergen,
Norway,University of Bergen, Bergen,
Norway,Anne Gro Heyn Faleide, PT, MSc, Haraldsplass Deaconess Hospital,
V/Avdeling for Rehabiliteringstjenester, Postboks 6165, Bergen, 5892, Norway
() (Twitter:
@Knegruppen)
| | | | | | - Bård Erik Bogen
- Haraldsplass Deaconess Hospital, Bergen,
Norway,Western Norway University of Applied
Sciences, Bergen, Norway
| | | | | | | | - Eivind Inderhaug
- University of Bergen, Bergen,
Norway,Haukeland University Hospital, Bergen,
Norway
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de Andrade ALL, Castro A, Livani B, Belangero WD. Association between Lysholm score and muscular torque deficit after anterior cruciate ligament reconstruction. J Orthop Surg (Hong Kong) 2021; 28:2309499020933485. [PMID: 32618222 DOI: 10.1177/2309499020933485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
PURPOSE The asymmetry of muscular strength after anterior cruciate ligament reconstruction (ACLR) is associated with increase in the development of new lesions. This asymmetry is precisely assessed by isokinetic dynamometry which is a high-cost technique, limited to major centers and hospitals. Thus, the aim of this study was to test the accuracy of one of the most frequently used functional questionnaires, the Lysholm score, to diagnose the knee torque deficit. METHODS In total, 115 patients were evaluated after ACLR. Knee symptoms were evaluated using the Lysholm questionnaire and knee extensor and flexor peak torque during maximal isokinetic concentric contractions at 60° s-1 (5 repetitions) and 180° s-1 (15 repetitions). Patients with <20% peak torque deficit were considered symmetric (normal). RESULTS An increase in the Lysholm score was associated with a deficit reduction in the peak torque of knee extensors at 60° s-1 (r = -0.294) and 180° s-1 (r = -0.297) (p < 0.05 for both). Cutoff Lysholm scores of >90 points for 60° s-1 allowed the correct diagnosis of symmetry in 71% and of >89 points for 180º·s-1 allowed the correct diagnosis of symmetry in 73%, for knee extensors. Patients with a Lysholm score of >89 points presented an isokinetic deficit 36% lower than patients with a Lysholm score of ≤89 points (p < 0.05). CONCLUSION A Lysholm score of >89 points has predictive value for deficits in the peak torque of knee extension (<20%). However, replacement of the isokinetic evaluation by this instrument must be performed with caution because of its accuracy.
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Affiliation(s)
- André Luis Lugnani de Andrade
- Department of Orthopedics and Traumatology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Alex Castro
- Laboratory of Exercise Physiology, Faculty of Physical Education, University of Campinas, Campinas, São Paulo, Brazil
| | - Bruno Livani
- Department of Orthopedics and Traumatology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - William Dias Belangero
- Department of Orthopedics and Traumatology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
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King E, Richter C, Daniels KA, Franklyn-Miller A, Falvey E, Myer GD, Jackson M, Moran R, Strike S. Biomechanical but Not Strength or Performance Measures Differentiate Male Athletes Who Experience ACL Reinjury on Return to Level 1 Sports. Am J Sports Med 2021; 49:918-927. [PMID: 33617291 PMCID: PMC9677345 DOI: 10.1177/0363546520988018] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Performance measures such as strength, jump height/length, and change of direction (CoD) time during anterior cruciate ligament (ACL) rehabilitation have been used to determine readiness to return to play and identify those who may be at risk of rerupture. However, athletes may reach these criteria despite ongoing biomechanical deficits when performing these tests. Combining return-to-play criteria with an assessment of movement through 3-dimensional (3D) biomechanics in male field sports athletes to identify risk factors for ACL rerupture has not been explored previously. PURPOSE To prospectively examine differences in strength, jump, and CoD performance and movement using 3D biomechanics in a cohort of male athletes playing level 1 sports (ie, multidirectional field sports that involve landing, pivoting, or CoD) between those who reinjured the reconstructed ACL (RI group) and those with no reinjury (NRI group) after 2 years of follow-up and to examine the ability of these differences to predict reinjury. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS After primary ACL reconstruction (ACLR), 1045 male athletes were recruited and underwent testing 9 months after surgery including isokinetic strength, jump, and CoD performance measures as well as patient-reported outcomes and 3D biomechanical analyses. Participants were followed up after 2 years regarding ACL reinjury status. Differences were determined between the RI and NRI groups in patient-reported outcomes, performance measures, and 3D biomechanics on the ACLR side and symmetry between limbs. The ability of these measures to predict ACL reinjury was determined through logistic regression. RESULTS No differences were identified in strength and performance measures on the ACLR side or in symmetry. Biomechanical analysis indicated differences on the ACLR side primarily in the sagittal plane for the double-leg drop jump (effect size, 0.59-0.64) and greater asymmetry primarily in the frontal plane during unplanned CoD (effect size, 0.61-0.69) in the RI group. While these biomechanical test results were different between groups, multivariate regression modeling demonstrated limited ability (area under the curve, 0.67 and 0.75, respectively) to prospectively predict ACL reinjury. CONCLUSION Commonly reported return-to-play strength, jump, and timed CoD performance measures did not differ between the RI and NRI groups. Differences in movement based on biomechanical measures during double-leg drop jump and unplanned CoD were identified, although they had limited ability to predict reinjury. Targeting these variables during rehabilitation may reduce reinjury risk in male athletes returning to level 1 sports after ACLR. REGISTRATION NCT02771548 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Enda King
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Department of Life Sciences, University of Roehampton, London, UK.,Address correspondence to Enda King, PT, PhD, Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Republic of Ireland ()
| | - Chris Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Department of Life Sciences, University of Roehampton, London, UK
| | - Katherine A.J. Daniels
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Queen’s School of Engineering, University of Bristol, Bristol, UK
| | - Andy Franklyn-Miller
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Australia
| | - Eanna Falvey
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland.,Department of Medicine, University College Cork, Cork, Ireland
| | - Gregory D. Myer
- The SPORT Center, Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA.,Departments of Pediatrics and Orthopaedic Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts, USA
| | - Mark Jackson
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland
| | - Ray Moran
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland
| | - Siobhan Strike
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Republic of Ireland
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King E, Richter C, Daniels KA, Franklyn-Miller A, Falvey E, Myer GD, Jackson M, Moran R, Strike S. Can Biomechanical Testing After Anterior Cruciate Ligament Reconstruction Identify Athletes at Risk for Subsequent ACL Injury to the Contralateral Uninjured Limb? Am J Sports Med 2021; 49:609-619. [PMID: 33560866 PMCID: PMC9938948 DOI: 10.1177/0363546520985283] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Athletes are twice as likely to rupture the anterior cruciate ligament (ACL) on their healthy contralateral knee than the reconstructed graft after ACL reconstruction (ACLR). Although physical testing is commonly used after ACLR to assess injury risk to the operated knee, strength, jump, and change-of-direction performance and biomechanical measures have not been examined in those who go on to experience a contralateral ACL injury, to identify factors that may be associated with injury risk. PURPOSE To prospectively examine differences in biomechanical and clinical performance measures in male athletes 9 months after ACLR between those who ruptured their previously uninjured contralateral ACL and those who did not at 2-year follow-up and to examine the ability of these differences to predict contralateral ACL injury. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS A cohort of male athletes returning to level 1 sports after ACLR (N = 1045) underwent isokinetic strength testing and 3-dimensional biomechanical analysis of jump and change-of-direction tests 9 months after surgery. Participants were followed up at 2 years regarding return to play or at second ACL injury. Between-group differences were analyzed in patient-reported outcomes, performance measures, and 3-dimensional biomechanics for the contralateral limb and asymmetry. Logistic regression was applied to determine the ability of identified differences to predict contralateral ACL injury. RESULTS Of the cohort, 993 had follow-up at 2 years (95%), with 67 experiencing a contralateral ACL injury and 38 an ipsilateral injury. Male athletes who had a contralateral ACL injury had lower quadriceps strength and biomechanical differences on the contralateral limb during double- and single-leg drop jump tests as compared with those who did not experience an injury. Differences were related primarily to deficits in sagittal plane mechanics and plyometric ability on the contralateral side. These variables could explain group membership with fair to good ability (area under the curve, 0.74-0.80). Patient-reported outcomes, limb symmetry of clinical performance measures, and biomechanical measures in change-of-direction tasks did not differentiate those at risk for contralateral injury. CONCLUSION This study highlights the importance of sagittal plane control during drop jump tasks and the limited utility of limb symmetry in performance and biomechanical measures when assessing future contralateral ACL injury risk in male athletes. Targeting the identified differences in quadriceps strength and plyometric ability during late-stage rehabilitation and testing may reduce ACL injury risk in healthy limbs in male athletes playing level 1 sports. CLINICAL RELEVANCE This study highlights the importance of assessing the contralateral limb after ACLR and identifies biomechanical differences, particularly in the sagittal plane in drop jump tasks, that may be associated with injury to this limb. These factors could be targeted during assessment and rehabilitation with additional quadriceps strengthening and plyometric exercises after ACLR to potentially reduce the high risk of injury to the previously healthy knee. REGISTRATION NCT02771548 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Enda King
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
- Department of Life Sciences, Roehampton University, London, UK
- Address correspondence to Enda King, PT, PhD, Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland ()
| | - Chris Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
- Department of Life Sciences, Roehampton University, London, UK
| | - Katherine A.J. Daniels
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
- Queen’s School of Engineering, University of Bristol, Bristol, UK
| | - Andy Franklyn-Miller
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
- Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Australia
| | - Eanna Falvey
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
| | - Gregory D. Myer
- The SPORT Center, Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- ** Departments of Pediatrics and Orthopaedic Surgery, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts, USA
| | - Mark Jackson
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
| | - Ray Moran
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
| | - Siobhan Strike
- Department of Life Sciences, Roehampton University, London, UK
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Ohji S, Aizawa J, Hirohata K, Ohmi T, Mitomo S, Koga H, Yagishita K. Single-leg hop can result in higher limb symmetry index than isokinetic strength and single-leg vertical jump following anterior cruciate ligament reconstruction. Knee 2021; 29:160-166. [PMID: 33631644 DOI: 10.1016/j.knee.2021.01.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/18/2020] [Accepted: 01/28/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND A single-leg vertical jump height (SLVJ) may reflect knee extension strength more than a single-leg hop for distance (SLH). This study aimed to examine the relationships between the isokinetic knee extension torque, SLH, and SLVJ after anterior cruciate ligament reconstruction (ACLR). METHODS Forty-four patients post-ACLR (median 12.0 months) participated in the study. The isokinetic knee extension peak torque at 60°/s and 180°/s (Ext 60, 180), SLH, and SLVJ were measured. The limb symmetry index (LSI) was calculated as the ratio of the operated side to the unoperated side. RESULTS There were moderate-to-strong positive correlations between isokinetic knee extension torque and both SLH (r = 0.72-0.77, P < 0.001) and SLVJ (r = 0.73-0.79, P < 0.001). Significant side-to-side differences in isokinetic knee extension torque and SLVJ between the operated and unoperated sides were found (P < 0.05), but not for SLH (P = 0.065). The results of the analysis of variance (ANOVA) and post hoc analyses showed that the LSI of SLH (98.2%) was higher than that of the LSI of Ext 180 and SLVJ (P < 0.05). Fisher's exact test showed a significant relationship between the LSI of Ext 180 and that of SLVJ (cut-off 85%; P = 0.041). No patients had LSI < 85% in SLH. CONCLUSIONS Even though SLH asymmetry improved approximately 12 months after ACLR, the asymmetry of isokinetic knee extension torque and SLVJ remained. The LSI of SLVJ could be an indicator of the recovery of isokinetic knee extension torque.
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Affiliation(s)
- Shunsuke Ohji
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Junya Aizawa
- Department of Rehabilitation Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Department of Physical Therapy, Faculty of Health Science, Juntendo University, Tokyo, Japan
| | - Kenji Hirohata
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takehiro Ohmi
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sho Mitomo
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuyoshi Yagishita
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
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81
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Fouasson-Chailloux A, Maugars Y, Trossaert M, Rannou F, Menu P, Vinatier C, Guicheux J, Dauty M. Isokinetic knee strength deficit in patients with moderate haemophilia. Haemophilia 2021; 27:634-640. [PMID: 33595151 DOI: 10.1111/hae.14279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Knee joint bleedings are responsible for quadriceps atrophy and strength deficit in patients with severe haemophilia. Little is known about patients with moderate haemophilia (PWMH). AIM To evaluate isokinetic quadriceps and hamstrings strength in PWMH and to assess correlation with radiological and clinical parameter. METHODS 18 PWMH aged 37.1 ± 11.4 and 18 healthy age-, weight- and height-matched controls performed a knee isokinetic test at 180°/s to assess quadriceps and hamstrings strength. In the PWMH group, knee Pettersson's score was pursued and Haemophilia Joint Health Score 2.1 (HJHS) was performed to determine unaffected knees (knee HJHS = 0) and affected ones (knee HJHS >0). RESULTS Affected knees had a decrease of quadriceps strength compared to controls, 1.26 ± 0.47 vs 1.64 ± 0.27 Nm/kg and a decrease of hamstring strength, 0.60 ± 0.29 vs 1.03 ± 0.21 Nm/kg, (P < 0.001). Unaffected knees also had a decrease of quadriceps strength compared to controls, 1.36 ± 0.31 vs 1.64 ± 0.27 Nm/kg and a decrease of hamstring strength, 0.69 ± 0.18 vs 1.03 ± 0.21 Nm/kg, (P < 0.001). The conventional hamstring-to-quadriceps ratio was significantly decreased in affected knees compared to controls, 0.46 ± 0.15 vs 0.64 ± 0.13 (P < 0.001) but also in unaffected knees, 0.53 ± 0.16 vs 0.64 ± 0.13 (P = 0.02).No correlation was found between strength and HJHS or Pettersson's score. CONCLUSION PWMH have a significant knee strength deficit, both on the quadriceps and the hamstrings, which is responsible for an important muscle imbalance.
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Affiliation(s)
- Alban Fouasson-Chailloux
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France.,Service de Médecine Physique et Réadaptation Locomotrice et Respiratoire, CHU Nantes, Nantes, France.,Service de Médecine du Sport, CHU Nantes, Nantes, France.,Université de Nantes, UFR Odontologie, Nantes, France
| | - Yves Maugars
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France.,Université de Nantes, UFR Odontologie, Nantes, France.,Service de Rhumatologie, CHU Nantes, Nantes, France
| | - Marc Trossaert
- Centre Régional de Traitement de l'Hémophilie, CHU Nantes, Nantes, France
| | - François Rannou
- Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpitaux Universitaires-Paris Centre, Groupe Hospitalier Cochin, Assistance Publique - Hôpitaux de Paris, France.,INSERM UMRS 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, UFR Sciences Fondamentales et Biomédicales, Sorbonne Paris Cité, Paris, France
| | - Pierre Menu
- Service de Médecine Physique et Réadaptation Locomotrice et Respiratoire, CHU Nantes, Nantes, France.,Service de Médecine du Sport, CHU Nantes, Nantes, France
| | - Claire Vinatier
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France.,Université de Nantes, UFR Odontologie, Nantes, France
| | - Jérôme Guicheux
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France.,Université de Nantes, UFR Odontologie, Nantes, France.,CHU Nantes, PHU4 OTONN, Nantes, France
| | - Marc Dauty
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France.,Service de Médecine Physique et Réadaptation Locomotrice et Respiratoire, CHU Nantes, Nantes, France.,Service de Médecine du Sport, CHU Nantes, Nantes, France.,Université de Nantes, UFR Odontologie, Nantes, France
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Kotsifaki A, Korakakis V, Graham-Smith P, Sideris V, Whiteley R. Vertical and Horizontal Hop Performance: Contributions of the Hip, Knee, and Ankle. Sports Health 2021; 13:128-135. [PMID: 33560920 DOI: 10.1177/1941738120976363] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Single-leg vertical and horizontal hop tests are commonly used to assess performance of healthy athletes and as a measure of progress during rehabilitation from knee injury. It is unclear if they measure similar aspects of leg function, as the relative joint contributions of the hip, knee, and ankle joints during propulsion and landing are unknown. HYPOTHESIS The proportion of work done by the hip, knee, and ankle will not be the same for these 2 jump types and will vary for propulsive and landing phases. STUDY DESIGN Cross-sectional cohort study. LEVEL OF EVIDENCE Level 3. METHODS Twenty physically active participants completed instrumented single-leg hop analysis in both vertical and horizontal directions. Joint peak power, work generated or absorbed, and percentage contribution of each joint during propulsive and landing phases were compared between tasks using paired t tests. RESULTS Vertical hop was performed with roughly similar contributions of the hip, knee, and ankle for both propulsion (31%, 34%, 35%, respectively) and landing (29%, 34%, 37%, respectively). Horizontal hop distance was mostly (87%) determined by the hip and ankle (44% and 43%), but landing was mostly (65%) performed by the knee with lesser contribution from the hip and ankle (24% and 11%). Propulsive phase showed a proximal-to-distal temporal sequence for both hop types, but landing was more complex. CONCLUSION Performance during vertical and horizontal hops (jump height and jump distance, respectively) measures different aspects of hip, knee, and ankle function during the propulsive and landing phases. CLINICAL RELEVANCE Assessment of knee joint function during rehabilitation should not be done using a horizontal hop. The knee contributes about a third to vertical hop height, but only about an eighth to horizontal hop distance. Practitioners carrying out performance testing using either vertical or horizontal hops should be mindful of the relative contributions for meaningful training inferences to be derived.
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Affiliation(s)
- Argyro Kotsifaki
- Department of Rehabilitation, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Vasileios Korakakis
- Department of Rehabilitation, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | | | - Vasileios Sideris
- Department of Rehabilitation, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Rod Whiteley
- Department of Rehabilitation, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
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Cristiani R, Mikkelsen C, Wange P, Olsson D, Stålman A, Engström B. Autograft type affects muscle strength and hop performance after ACL reconstruction. A randomised controlled trial comparing patellar tendon and hamstring tendon autografts with standard or accelerated rehabilitation. Knee Surg Sports Traumatol Arthrosc 2021; 29:3025-3036. [PMID: 33128587 PMCID: PMC8384829 DOI: 10.1007/s00167-020-06334-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/13/2020] [Indexed: 12/04/2022]
Abstract
PURPOSE To evaluate and compare changes in quadriceps and hamstring strength and single-leg-hop (SLH) test performance over the first 24 postoperative months in patients who underwent anterior cruciate ligament reconstruction (ACLR) with bone-patellar tendon-bone (BPTB) or hamstring tendon (HT) autografts and followed either a standard or an accelerated rehabilitation protocol. METHODS A total of 160 patients undergoing ACLR were randomised in four groups depending on the graft that was used and the rehabilitation protocol (40 BPTB/standard rehab, 40 BPTB/accelerated rehab, 40 HT/standard rehab, 40 HT/accelerated rehab). Isokinetic concentric quadriceps and hamstring strength at 90°/s and the SLH test performance were assessed preoperatively and 4,6,8,12 and 24 months postoperatively. The results were reported as the limb symmetry index (LSI) at the same time point. Linear mixed models were used to compare the groups at the different time points. RESULTS An average quadriceps strength LSI of 78.4% was found preoperatively. After ACLR, the LSI first decreased at 4 months and then increased from 6 to 24 months, reaching an overall value of 92.7% at the latest follow-up. The BPTB group showed a significantly decreased LSI at 4, 6, 8 and 12 months compared with the HT group. No significant differences between the graft groups were found at 24 months. An average hamstring strength LSI of 84.6% was found preoperatively. After ACLR, the LSI increased from 4 to 24 months in the BTPB group. In the HT group, the LSI first decreased at 4 months and then increased from 6 to 24 months. An LSI of 97.1% and 89.1% was found at the latest follow-up for the BPTB and the HT group, respectively. The HT group showed a significantly decreased LSI at all follow-ups compared with the BPTB group. An average SLH test LSI of 81% was found preoperatively. After ACLR, the LSI increased from 4 to 24 months, reaching 97.6% overall at the latest follow-up. The BPTB group showed a significantly decreased LSI only at 4 months postoperatively compared with the HT group. No significant differences in any of the three tests were found between the standard and accelerated rehabilitation groups for either of the graft groups at any time point. CONCLUSION Muscle strength and SLH test performance recovered progressively after ACLR overall, but they did not all fully recover, as the injured leg performed on average less than 100% compared with the uninjured leg even 24 months postoperatively. After ACLR, inferior quadriceps strength and a poorer SLH test performance were found at 4, 6, 8 and 12 months and at 4 months, respectively, for the BTPB group compared with the HT group. Persistent, inferior hamstring strength was found at all postoperative follow-ups in the HT group. Rehabilitation, standard or accelerated, had no significant impact on the recovery of muscle strength and SLH test performance after ACLR in any of the graft groups. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Riccardo Cristiani
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden. .,Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Valhallavägen 91, 11486, Stockholm, Sweden.
| | - Christina Mikkelsen
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden ,grid.416138.90000 0004 0397 3940Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Valhallavägen 91, 11486 Stockholm, Sweden
| | - Peter Wange
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden ,Aleris Sports Medicine and Orthopedics Sabbatsberg, Crafoords väg 6, 11382 Stockholm, Sweden
| | - Daniel Olsson
- Unit of Medical Statistics, Department of Learning, Informatics, Management and Ethics (LIME), Karolinska Institutet, Stockholm, Sweden
| | - Anders Stålman
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden ,grid.416138.90000 0004 0397 3940Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Valhallavägen 91, 11486 Stockholm, Sweden
| | - Björn Engström
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden ,grid.416138.90000 0004 0397 3940Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Valhallavägen 91, 11486 Stockholm, Sweden
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Determining the number of repetitions to establish isokinetic knee evaluation protocols specific to angular velocities of 60°/second and 180°/second. J Bodyw Mov Ther 2020; 25:255-260. [PMID: 33714505 DOI: 10.1016/j.jbmt.2020.12.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 12/21/2020] [Accepted: 12/29/2020] [Indexed: 11/20/2022]
Abstract
INTRODUCTION This study aims to develop a standard number of repetition at angular velocities of 60°/sec and 180°/sec and define the difference of number of repetitions between genders. METHOD One hundred ninety-six athletes (judo, volleyball, Greco-Roman wrestling, runners, and gymnastics) were involved. Concentric-concentric isokinetic muscle strength of the knee flexor-extensor muscles of the athletes were performed with an ISOMED 2000 isokinetic dynamometer. The evaluation test protocol consisted of 10 repetition of knee flexion-extension at 60°/sec and 30 repetitions at 180°/sec. RESULTS Athletes performed with maximal knee flexion strength at their second and third trial at 60°/sec and third-forth trial at 180°/sec. It was found that 2 repetitions and 2-3 repetitions were needed for knee extension peak torque at 60°/sec and 180°/sec respectively. The difference between the genders was significant at 60°/sec for knee flexion and extension on the dominant side; at 180°/sec for knee extension on the dominant and non-dominant side. It was determined that 3 repetitions for 60°/sec, 4 repetitions for 180°/sec were enough to determine peak torque values. DISCUSSION Optimal number of repetitions is crucial so that athletes could have the opportunity to reach maximal strength without unnecessary workload or waste of time. CONCLUSIONS Protocols involving 3 repetitions for 60°/sec, 4 repetitions for 180°/sec were enough to determine peak torque values. Gender of athletes should be considered when establishing isokinetic knee evaluation protocols.
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85
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Piussi R, Broman D, Musslinder E, Beischer S, Thomeé R, Hamrin Senorski E. Recovery of preoperative absolute knee extension and flexion strength after ACL reconstruction. BMC Sports Sci Med Rehabil 2020; 12:77. [PMID: 33302996 PMCID: PMC7727173 DOI: 10.1186/s13102-020-00222-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/22/2020] [Indexed: 11/21/2022]
Abstract
Background The recovery of muscle function after an Anterior Cruciate Ligament (ACL) reconstruction is most commonly reported as limb-to-limb differences using the Limb Symmetry Index (LSI), which is not free from limitations. The purpose of this study was to compare the proportion of patients who recover their Preoperative Absolute Muscle Strength (PAMS) 8 and 12 months after ACL reconstruction with the proportion of patients who recover their symmetrical knee strength. A secondary aim was to assess the relationship between psychological Patient-Reported Outcomes (PROs) and recovering PAMS at 8 and 12 months after ACL reconstruction and rehabilitation. Method Preoperative, 8- and 12-month results from quadriceps and hamstring strength tests and PROs for 117 patients were extracted from a rehabilitation registry. Individual preoperative peak torques from strength tests were compared with results from the 8- and 12-month follow-ups respectively. Patients were defined as having recovered their PAMS upon reaching 90% of their preoperative peak torque for both quadriceps and hamstring strength. Patients were defined as having recovered their LSI upon reaching a value ≥90% when comparing the results for their injured knee with those of their healthy knee. Correlations between the recovery of PAMS and PROs at 8 and 12 months were analyzed. Results There was no difference in the proportion of patients who recovered their PAMS compared with patients who recovered their LSI. In all, 30% and 32% of the patients who recovered their LSI had not recovered their PAMS at 8 months and 12 months respectively. In the patients who had recovered their PAMS, 24% and 31% had not recovered their symmetrical LSI at 8 months and 12 months respectively. There was no significant correlation between the recovery of PAMS and psychological PROs. Conclusion The use of both PAMS and LSI provides more detailed information on the recovery of muscle strength after ACL reconstruction. The recovery of PAMS was not correlated with psychological traits, which implies that both PROs and PAMS are important when evaluating patients after ACL reconstruction. Trial registration This trial was not registered.
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Affiliation(s)
- Ramana Piussi
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden.,Sahlgrenska Sports Medicine Center, Gothenburg, Sweden
| | - Daniel Broman
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden
| | - Erik Musslinder
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden
| | - Susanne Beischer
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden.,Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, SE-405 30, Gothenburg, Sweden
| | - Roland Thomeé
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden.,Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, SE-405 30, Gothenburg, Sweden
| | - Eric Hamrin Senorski
- Sportrehab Sports Medicine Clinic, Stampgatan 14, SE-411 01, Gothenburg, Sweden. .,Sahlgrenska Sports Medicine Center, Gothenburg, Sweden. .,Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, SE-405 30, Gothenburg, Sweden.
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86
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Functional progression milestones following anterior cruciate ligament reconstruction are more appropriate than time-based criteria: a survey among the ESSKA. Knee Surg Sports Traumatol Arthrosc 2020; 28:3647-3654. [PMID: 32240346 DOI: 10.1007/s00167-020-05960-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The aim of this study was to report current rehabilitation recommendations after ACL reconstruction in ESSKA community, with a particular focus on the specific criteria utilized to guide activity progression METHODS: A web-based survey was developed to investigate preferences between time-based and functional ACL reconstruction rehabilitation progression milestones of ESSKA community. RESULTS Eight hundred and twenty completed questionnaires were received. Responders were from 86 different countries worldwide, 63% of them from European countries. Functional criteria were considered more appropriate to decide if a patient can start specific activities/exercises by 67% of the responders. Good core and lower extremity neuromuscular control were the most often used functional criteria for decision-making regarding readiness for sport-specific rehabilitation (66%), sport-specific drills without (65%) and with contact (66%). Strength assessed with an isokinetic dynamometer was considered by about half of the responders a determinant to initiate sport-specific drills without (51%-isokinetic strength, LSI > 80%) and with contact (58%-isokinetic strength, LSI > 85-90%). To determine readiness for sport-specific drills, hop tests were used by 40% of respondents for drills without contact and 48% of respondents for drills with contact. CONCLUSION The results of this survey involving mainly orthopaedic surgeons indicate that functional measures are considered more appropriate than milestones based on time from surgery to guide progression through the postoperative rehabilitation process after ACLR. The main clinical relevance of this study is that updated information on collective agreement could be useful for clinicians and physiotherapists to delineate their postoperative treatments after ACLR. These results should be interpreted with caution, as this sample represents only a small portion of ESSKA community involved in knee surgery and treating patients following ACLR. LEVEL OF EVIDENCE III.
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87
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Adding a modified Lemaire procedure to ACLR in knees with severe rotational knee instability does not compromise isokinetic muscle recovery at the time of return-to-play. J Exp Orthop 2020; 7:84. [PMID: 33128116 PMCID: PMC7599282 DOI: 10.1186/s40634-020-00302-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/16/2022] Open
Abstract
Purpose To determine whether isokinetic muscle recovery following ACLR using a hamstring tendon (HT) would be equivalent (non-inferior) in knees that had high-grade pivot-shift and adjuvant modified Lemaire procedure versus knees that had minimal pivot-shift and no adjuvant modified Lemaire procedure. Methods We evaluated 96 consecutive patients that underwent primary ACLR. Nine were excluded because of contralateral knee injury, and of the remaining 87, ACLR was performed stand-alone in 52 (Reference group), and with a Lemaire procedure in 35 (Lemaire group) who had high-grade pivot-shift, age < 18, or genu recurvatum > 20°. At 6 months, isokinetic tests were performed at 240°/s and 90°/s to calculate strength deficits of hamstrings (H) and quadriceps (Q). At 8 months, patients were evaluated using IKDC, Lysholm, and Tegner scores. Results Compared to the Reference group, the Lemaire group were younger (23.0 ± 2.5 vs 34.2 ± 10.5, p = 0.021) with a greater proportion of males (80% vs 56%, p < 0.001). The Lemaire group had no complications, but the Reference group had one graft failure and one cyclops syndrome. Strength deficits at 240°/s and at 90°/s were similar in both groups, but mixed H/Q ratios were lower for the Lemaire group (1.02 ± 0.19 vs 1.14 ± 0.24, p = 0.011). IKDC and Lysholm scores were similar in both groups, but Tegner scores were higher in the Lemaire group (median, 6.5 vs 6.0, p = 0.024). Conclusions ACLR with a modified Lemaire procedure for knees with rotational instability grants equivalent isokinetic muscle recovery as stand-alone ACLR in knees with no rotational instability. For ACL-deficient knees with high-grade pivot-shift, a Lemaire procedure restores rotational stability without compromising isokinetic muscle recovery. Study design Level III, comparative study.
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88
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Carolan D, King E, Richter C, Franklyn-Miller A, Moran R, Jackson M. Differences in Strength, Patient-Reported Outcomes, and Return-to-Play Rates Between Athletes With Primary Versus Revision ACL Reconstruction at 9 Months After Surgery. Orthop J Sports Med 2020; 8:2325967120950037. [PMID: 32984423 PMCID: PMC7498981 DOI: 10.1177/2325967120950037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 04/24/2020] [Indexed: 01/01/2023] Open
Abstract
Background: Patient-reported outcomes and return-to-play (RTP) rates are inferior after
revision anterior cruciate ligament reconstruction (ACLR) compared with
primary ACLR. Physical properties such as maximal, explosive, and reactive
strength influence reinjury and RTP rates after ACLR. No study has compared
these outcomes between revision and primary ACLR. Purpose: To compare maximal, explosive, and reactive strength of the ACLR limb, as
well as patient-reported outcomes and RTP rates between primary and revision
ACLR at 9 months after surgery. Study Design: Cohort study; Level of evidence, 2. Methods: A comparative study was performed at 9 months after surgery for 344 male
athletes who had undergone ACLR (298 primary, 46 revision). Maximal strength
of the ACLR limb was measured by means of isokinetic dynamometry. Explosive
strength was measured by use of single-leg countermovement jump height, and
reactive strength was measured by single-leg drop jump. Patient-reported
outcomes and responses to RTP questionnaires were recorded for both
groups. Results: The primary ACLR group had higher scores than the revision ACLR group for
single-leg countermovement jump height (P = .02) and
single-leg drop jump reactive strength index (P = .01) on
the ACLR limb. No significant difference was observed between groups on
maximal strength of the quadriceps or hamstring, and no significant
difference in limb symmetry index was observed between groups on any
strength or jump test. The primary ACLR group demonstrated higher scores on
the Marx Activity Rating Scale (P = .03) and the Anterior
Cruciate Ligament–Return to Sport after Injury scale (P
< .001). Athletes in the primary ACLR group were more likely to have
returned to sport (P < .001). Conclusion: At 9 months after surgery, athletes who had undergone revision ACLR achieved
maximal strength similar to that of athletes who had undergone primary ACLR.
However, athletes who had revision ACLR demonstrated lower scores on
explosive and reactive strength tests. Athletes who underwent revision ACLR
had lower RTP rates at 9 months after surgery, potentially due to explosive
and reactive strength deficits and lower perceived readiness for RTP.
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Affiliation(s)
- David Carolan
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland
| | - Enda King
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland.,Department of Life Sciences, Roehampton University, Roehampton, UK
| | - Chris Richter
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland.,Department of Life Sciences, Roehampton University, Roehampton, UK
| | - Andy Franklyn-Miller
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland.,Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Australia
| | - Ray Moran
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland
| | - Mark Jackson
- Sports Surgery Clinic, Sports Medicine, Dublin, Ireland
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Rodriguez K, Garcia SA, Spino C, Lepley LK, Pang Y, Wojtys E, Bedi A, Angelini M, Ruffino B, Bolley T, Block C, Kellum J, Swartout A, Palmieri-Smith RM. Michigan Initiative for Anterior Cruciate Ligament Rehabilitation (MiACLR): A Protocol for a Randomized Clinical Trial. Phys Ther 2020; 100:2154-2164. [PMID: 32939539 PMCID: PMC7720639 DOI: 10.1093/ptj/pzaa169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/18/2020] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Restoring quadriceps muscle strength following anterior cruciate ligament reconstruction (ACLR) may prevent the posttraumatic osteoarthritis that affects over 50% of knees with ACLR. However, a fundamental gap exists in our understanding of how to maximize muscle strength through rehabilitation. Neurological deficits and muscle atrophy are 2 of the leading mechanisms of muscle weakness after ACLR. High-intensity neuromuscular electrical stimulation (NMES) and eccentric exercise (ECC) have been shown to independently target these mechanisms. If delivered in succession, NMES and then ECC may be able to significantly improve strength recovery. The objectives of this study were to evaluate the ability of NMES combined with ECC to restore quadriceps strength and biomechanical symmetry and maintain cartilage health at 9 and 18 months after ACLR. METHODS This study is a randomized, double-blind, placebo-controlled, single-center clinical trial conducted at the University of Michigan. A total of 112 participants between the ages of 14 and 45 years and with an anterior cruciate ligament rupture will be included. Participants will be randomly assigned 1:1 to NMES combined with ECC or NMES placebo combined with ECC placebo. NMES or NMES placebo will be delivered 2 times per week for 8 weeks beginning 10 to 14 days postoperatively and will be directly followed by 8 weeks of ECC or ECC placebo delivered 2 times per week. The co-primary endpoints are change from baseline to 9 months and change from baseline to 18 months after ACLR in isokinetic quadriceps strength symmetry. Secondary outcome measures include isometric quadriceps strength, quadriceps activation, quadriceps muscle morphology (cross-sectional area), knee biomechanics (sagittal plane knee angles and moments), indexes of patient-reported function, and cartilage health (T1ρ and T2 relaxation time mapping on magnetic resonance imaging). IMPACT The findings from this study might identify an intervention capable of targeting the lingering quadriceps weakness after ACLR and in turn prevent deterioration in cartilage health after ACLR, thereby potentially improving function in this patient population.
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Affiliation(s)
- Kazandra Rodriguez
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan; and Orthopaedic Rehabilitation and Biomechanics Laboratory, University of Michigan
| | - Steven A Garcia
- School of Kinesiology, University of Michigan; and Orthopaedic Rehabilitation and Biomechanics Laboratory, University of Michigan
| | | | - Lindsey K Lepley
- School of Kinesiology, University of Michigan; and Orthopaedic Rehabilitation and Biomechanics Laboratory, University of Michigan
| | - Yuxi Pang
- Department of Radiology, Michigan Medicine, Ann Arbor, Michigan
| | - Edward Wojtys
- Michigan Medicine; and Department of Orthopaedic Surgery, Michigan Medicine
| | - Asheesh Bedi
- Michigan Medicine; and Department of Orthopaedic Surgery, Michigan Medicine
| | - Mike Angelini
- School of Kinesiology, University of Michigan; and Orthopaedic Rehabilitation and Biomechanics Laboratory, University of Michigan
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90
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Turpeinen J, Freitas TT, Rubio‐Arias JÁ, Jordan MJ, Aagaard P. Contractile rate of force development after anterior cruciate ligament reconstruction—a comprehensive review and meta‐analysis. Scand J Med Sci Sports 2020; 30:1572-1585. [DOI: 10.1111/sms.13733] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 01/01/2023]
Affiliation(s)
| | - Tomás T. Freitas
- UCAM Research Center for High Performance Sport Murcia Spain
- NAR—Nucleus of High Performance in Sport São Paulo Brazil
| | - Jacobo Ángel Rubio‐Arias
- UCAM Research Center for High Performance Sport Murcia Spain
- LFE Research Group Department of Health and Human Performance Faculty of Physical Activity and Sport Science‐INEF Universidad Politécnica de Madrid Madrid Spain
| | | | - Per Aagaard
- Department of Sports Science and Clinical Biomechanics SDU Muscle Research Cluster (SMRC) University of Southern Denmark Odense M Denmark
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91
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Bonnette S, Diekfuss JA, Grooms DR, Kiefer AW, Riley MA, Riehm C, Moore C, Foss KDB, DiCesare CA, Baumeister J, Myer GD. Electrocortical dynamics differentiate athletes exhibiting low- and high- ACL injury risk biomechanics. Psychophysiology 2020; 57:e13530. [PMID: 31957903 PMCID: PMC9892802 DOI: 10.1111/psyp.13530] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 11/19/2019] [Accepted: 12/18/2019] [Indexed: 02/04/2023]
Abstract
Anterior cruciate ligament (ACL) injuries are physically and emotionally debilitating for athletes,while motor and biomechanical deficits that contribute to ACL injury have been identified, limited knowledge about the relationship between the central nervous system (CNS) and biomechanical patterns of motion has impeded approaches to optimize ACL injury risk reduction strategies. In the current study it was hypothesized that high-risk athletes would exhibit altered temporal dynamics in their resting state electrocortical activity when compared to low-risk athletes. Thirty-eight female athletes performed a drop vertical jump (DVJ) to assess their biomechanical risk factors related to an ACL injury. The athletes' electrocortical activity was also recorded during resting state in the same visit as the DVJ assessment. Athletes were divided into low- and high-risk groups based on their performance of the DVJ. Recurrence quantification analysis was used to quantify the temporal dynamics of two frequency bands previously shown to relate to sensorimotor and attentional control. Results revealed that high-risk participants showed more deterministic electrocortical behavior than the low-risk group in the frontal theta and central/parietal alpha-2 frequency bands. The more deterministic resting state electrocortical dynamics for the high-risk group may reflect maladaptive neural behavior-excessively stable deterministic patterning that makes transitioning among functional task-specific networks more difficult-related to attentional control and sensorimotor processing neural regions.
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Affiliation(s)
- Scott Bonnette
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jed A. Diekfuss
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Dustin R. Grooms
- Ohio Musculoskeletal & Neurological Institute, Ohio University, Athens, GA, USA,Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, OH, USA
| | - Adam W. Kiefer
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA,Department of Psychology, Center for Cognition, Action & Perception, University of Cincinnati, Cincinnati, OH, USA,Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael A. Riley
- Department of Psychology, Center for Cognition, Action & Perception, University of Cincinnati, Cincinnati, OH, USA
| | - Christopher Riehm
- Department of Psychology, Center for Cognition, Action & Perception, University of Cincinnati, Cincinnati, OH, USA
| | - Charles Moore
- Department of Psychology, Center for Cognition, Action & Perception, University of Cincinnati, Cincinnati, OH, USA
| | - Kim D. Barber Foss
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Christopher A. DiCesare
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Jochen Baumeister
- Exercise Science and Neuroscience, Department Exercise & Health, Paderborn University, Paderborn, Germany
| | - Gregory D. Myer
- The SPORT Center, Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA,Department of Orthopaedic Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA,The Micheli Center for Sports Injury Prevention, Waltham, MA, USA
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92
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Nagai T, Schilaty ND, Laskowski ER, Hewett TE. Hop tests can result in higher limb symmetry index values than isokinetic strength and leg press tests in patients following ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2020; 28:816-822. [PMID: 31025059 PMCID: PMC6814513 DOI: 10.1007/s00167-019-05513-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/18/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Quadriceps weakness is a common clinical sign following anterior cruciate ligament injury and reconstruction surgery (ACLR). The aim of this study was to compare strength deficits and the limb symmetry index (LSI) from three different types of functional tests: isokinetic dynamometry, hop test, and leg press. METHODS A total of 26 subjects with ACLR (average 8.3 months post-operation) participated in the study. The peak knee extension torque was tested with isokinetic dynamometry at 60/180/300 °/s (ISO60/180/300). Hop distance was tested during single hop (SH) and triple hop (TH). Unilateral peak leg power (POWER) was tested during a bilateral leg press test. LSI was calculated as the ratio of the involved limb over the uninvolved limb values. Pearson correlation coefficients and paired t-tests were used to establish relationships among ISO60/180/300, SH/TH, and POWER values and compare these values between the limbs, respectively. Within-subject one-way analysis of variance (ANOVA) with post hoc analyses was used to compare LSI values among different tests. RESULTS ISO60/180/300 values were significantly positively correlated with SH/TH and POWER (P < 0.05), while SH/TH and POWER values were not significantly correlated. Significant limb differences were found in all tests (P = 0.001-0.008). ANOVA revealed significant LSI differences among different tests. Specifically, post hoc analyses revealed that LSI during SH was significantly higher than LSI during ISO60. Similarly, LSI during TH was significantly higher than LSIs from ISO60, ISO180, and POWER tests. CONCLUSIONS Peak knee extension torque values were positively associated with hop distance and leg power during the leg press test. However, LSI values should be interpreted with caution as hop tests provided significantly higher LSI values than isokinetic testing. Both isokinetic dynamometry and unilateral leg press machine could be used to isolate and strengthen the quadriceps in the involved limb. The current "gold standard" isokinetic testing at slow speed (ISO60) provided the lowest LSI value among all functional tests; therefore, the current study supported a continued use of isokinetic testing when examining individual's readiness and return-to-sport. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Takashi Nagai
- Sports Medicine Center, Mayo Clinic, Rochester, MN, USA. .,Biomechanics Laboratories, Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
| | - Nathan D. Schilaty
- Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA,Biomechanics Laboratories, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA,Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
| | - Edward R. Laskowski
- Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA,Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, Minnesota, USA
| | - Timothy E. Hewett
- Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA,Biomechanics Laboratories, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA,Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA,Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, Minnesota, USA
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93
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Salas VER, Oliveira DED, Lima MVD, Duarte Junior A, Guglielmetti LGB, Cury RDPL, Jorge PB. QUADRICEPS AUTOGRAFT IN ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION: A LITERATURE REVIEW. REV BRAS MED ESPORTE 2020. [DOI: 10.1590/1517-869220202601214002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
ABSTRACT Introduction: Anterior cruciate ligament injury is one of the most prevalent musculoskeletal injuries. Therefore, several surgical techniques and graft types have been described for its reconstruction. Autologous hamstring tendon graft is one of the most frequently used, but use of the quadriceps tendon graft has gained prominence in recent years. Objective: To review the literature to compare the outcomes of patients undergoing anterior cruciate ligament reconstruction (ACLR) with quadriceps tendon (QT) autograft versus hamstring tendon (HT) autograft. Methods: A literature review was conducted through PubMed to locate studies (Level of evidence I-III) comparing the outcomes of the QT autograft vs. the HT autograft in patients undergoing primary ACL reconstruction. Patients were assessed on the basis of re-rupture rate, ligament instability, patient-reported outcome scores, previous pain, and isokinetic tests. Results: Six studies were selected according to inclusion criteria. A total of 481 patients were evaluated, 243 in the QT group and 238 in the HT group. The total re-rupture rate was 1.6% (8 of 481), with 6 in the HT group and 2 in the QT group, but with no statistical difference between groups. One study found increased ligament instability in the HT group and another study found greater instability in the QT group, both with statistical significance. Regarding the patient-reported functional scores, only 01 study found statistical difference, with better results in the QT group. There was no difference in previous pain between groups in the selected studies. Regarding the isokinetic test, one study found a difference in flexor force in the HT group (p <0.01), with no difference in extensor force, while another two studies found an increased extensor force deficit in the QT group within up to 01 year of follow-up. The flexor/ extensor muscle strength ratio was higher in the QT group in both studies. Conclusion: ACL reconstruction with QT graft presents re-rupture rates, ligament instability, functional scores and donor site morbidity that are similar to the HT graft, in addition to preserving greater flexor force in proportion to extensor force. Level of evidence: IV; Review study.
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94
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Increased interhemispheric synchrony underlying the improved athletic performance of rowing athletes by transcranial direct current stimulation. Brain Imaging Behav 2020; 13:1324-1332. [PMID: 30145715 DOI: 10.1007/s11682-018-9948-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
To explore the mechanism of transcranial direct current stimulation (tDCS) on the improved performance of professional rowing athletes. Twelve male professional rowing athletes were randomly divided into two groups (low-stimulation group, 1 mA, n = 6; high-stimulation group, 2 mA, n = 6), and they accepted tDCS for two consecutive weeks while undergoing regular training (20 min each time, five times a week, totally ten times). The assessments of depression, anxiety, executive function, fatigue perception, lactate threshold power (LTP) and isokinetic muscle strength as well as the collection of functional magnetic resonance imaging (fMRI) data were performed at baseline and at follow-up (the end of the fourth week). The voxel-mirrored homotopic connectivity (VMHC) value was calculated in the whole brain. After stimulation, there were significant increases in executive function and athletic performance. Analysis of variance (ANOVA) analysis indicated time factor, stimulation intensity factor had a main effect on LTP and 60RK, respectively. There was no significant difference of VMHC value between the high- and low-stimulation groups at baseline. Comparing with low-stimulation group, significant increased VMHC values of the bilateral middle temporal gyrus (MTG), precentral gyrus and superior frontal gyrus (SFG) were found in high-stimulation group at follow-up. Correlation analyses showed that in high-stimulation group, the VMHC values of bilateral MTG and SFG were both positively correlated with the measures of athletic performance. tDCS may contribute to the improvement of athletic performance in professional rowing athletes, and the increased interhemispheric coordination may be involved in the mechanism of the improved athletic performance.
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95
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Hunnicutt JL, McLeod MM, Slone HS, Gregory CM. Quadriceps Neuromuscular and Physical Function After Anterior Cruciate Ligament Reconstruction. J Athl Train 2020; 55:238-245. [PMID: 31995392 DOI: 10.4085/1062-6050-516-18] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT Persistent neuromuscular deficits in the surgical limb after anterior cruciate ligament reconstruction (ACLR) have been repeatedly described in the literature, yet little is known regarding their association with physical performance and patient-reported function. OBJECTIVE To describe (1) interlimb differences in neuromuscular and functional outcomes and (2) the associations of neuromuscular outcomes with measures of physical and knee-related patient-reported function. DESIGN Cross-sectional study. SETTING Laboratory. PATIENTS OR OTHER PARTICIPANTS Thirty individuals after primary, unilateral ACLR (19 males; age = 21.5 years [range, 14-41 years]; 8 months [range = 6-23 months] postsurgery). MAIN OUTCOME MEASURE(S) Knee-extensor isometric and isokinetic peak torque was measured with an isokinetic dynamometer. Cross-sectional area (CSA) was measured bilaterally for each of the quadriceps muscles via magnetic resonance imaging. We measured quadriceps central activation bilaterally via the superimposed-burst technique. Physical performance (single-legged hop tests, step length via spatiotemporal gait analysis) and patient-reported outcomes (International Knee Documentation Committee questionnaire and Knee Injury and Osteoarthritis Outcome Score Sport and Recreation subscale) were also recorded. We conducted Wilcoxon signed rank tests to identify interlimb differences. Spearman ρ correlation analyses revealed associations between limb symmetry and neuromuscular and functional outcomes, as well as with patient-reported function. RESULTS Deficits in the surgical limb as compared with the nonsurgical limb were present for all outcomes (P values < .05). Greater single-legged hop-test symmetry (83%) was significantly correlated with greater symmetry in knee-extensor isometric (63%; rs = 0.567, P = .002) and isokinetic (68%; rs = 0.540, P = .003) strength, as well as greater cross-sectional area of the vastus medialis (78%; rs = 0.519, P = .006) and vastus lateralis (82%; rs = 0.752, P < .001). A higher International Knee Documentation Committee questionnaire score (82.2) was significantly correlated with greater symmetry in knee-extensor isokinetic strength (rs = 0.379, P = .039). CONCLUSIONS Although deficits were observed in the surgical limb for all neuromuscular measures, greater symmetry in the size and strength of the quadriceps, rather than activation, was more strongly associated with physical performance after ACLR. Greater symmetry in strength was also more strongly associated with patient-reported function.
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Affiliation(s)
| | | | - Harris S Slone
- Department of Orthopaedics, College of Medicine, and Department of Health Science & Research, Medical University of South Carolina, Charleston
| | - Chris M Gregory
- Division of Physical Therapy, College of Health Professions, Medical University of South Carolina, Charleston
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96
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Abstract
INTRODUCTION Ruptures of the anterior cruciate ligament (ACL) can be accompanied by meniscal lesions. Generally, the rehabilitation protocols are altered by meniscal repair. Therefore, the aim of this study was to investigate the effect of meniscal repair on the early recovery of thigh muscle strength in ACL reconstruction (ACLR). MATERIALS AND METHODS We performed a matched cohort analysis of n = 122 isolated ACLR (CON) compared to n = 61 ACLR with meniscal repair (ACLR + MR). The subgroups of meniscal repair consisted of 30 patients who had undergone medial meniscus repairs (MM), 19 lateral meniscus repairs (LM) and 12 repairs of medial and lateral meniscus (BM). Isokinetic strength measurement was performed pre-operatively and 6 months post-surgery to perform a cross-sectional and a longitudinal analysis. All injuries were unilateral, and the outcome measures were compared to the non-affected contralateral leg. RESULTS Six months postoperatively overall there is no significant difference between the groups (extension strength MR 82% vs. CON 85% and flexion strength 86% vs. 88%, resp.). Subgroup analysis showed that medial repairs exhibit a comparable leg symmetry while lateral repairs performed worse with leg symmetry being 76% in extension and 81% in flexion strength. Patients undergoing BM repair performed in between lateral and medial repairs (82% extension, 86% flexion). CONCLUSION Generally, meniscal repair in conjunction with ACLR does not significantly alter the recovery of limb symmetry in strength at 6 months postoperatively. Interestingly, medial repairs seem to perform superior to lateral meniscal repair and repair of both menisci. Since the recovery of symmetric strength is a major factor in rehabilitation testing, these results will help to advise surgeons on appropriate rehabilitation protocols and setting realistic goals for the injured athlete. LEVEL OF EVIDENCE III, retrospective cohort study.
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97
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Piussi R, Beischer S, Thomeé R, Hamrin Senorski E. Superior knee self-efficacy and quality of life throughout the first year in patients who recover symmetrical muscle function after ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2020; 28:555-567. [PMID: 31555843 PMCID: PMC6994536 DOI: 10.1007/s00167-019-05703-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/21/2019] [Indexed: 12/29/2022]
Abstract
PURPOSE The aim of this study was to (1) describe psychological outcomes during the first year after an anterior cruciate ligament (ACL) reconstruction and (2) compare psychological outcomes in patients who recover symmetrical muscle function with patients who do not. METHODS The included patients had undergone a unilateral ACL reconstruction. Patients with a re-rupture and contralateral ACL injury were excluded. Three groups, based on the results from 5 tests of muscle function 12 months after reconstruction, were created. Three validated questionnaires (the Knee Self-Efficacy Scale; the Knee injury and Osteoarthritis Outcome Score subscale "Quality of Life"; the ACL Return to Sport after Injury scale) and a single question "Have you achieved your goal with rehabilitation?" were analysed in 4 different follow-ups after ACL reconstruction (10 weeks, 4, 8 and 12 months). Means and standard deviations were analysed with standard t tests and reported with 95% confidence intervals. RESULTS A total of 328 patients (120 men, 37%), mean age 27.8 ± 10 years, were included. Patients who did not recover symmetrical muscle function (n = 56; 17%) at the 12-month follow-up reported inferior knee-related self-efficacy and quality of life than patients who recovered symmetrical muscle function (n = 96; 29%) at all follow-ups, except quality of life at 4 months. The proportion of patients who stated they achieved their rehabilitation goal at 12 months was 17% for the entire cohort, 24% for patients who recovered muscle function and 5% for patients who did not recover muscle function. CONCLUSION Patients who recovered strength and hop symmetry 12 months after ACL reconstruction had superior knee-related self-efficacy and greater quality of life during the whole first year after ACL reconstruction. These results can aid clinicians in the decision-making process by providing knowledge of patients who might need further attention during rehabilitation. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Ramana Piussi
- Sportrehab Sports Medicine Clinic, Stampgatan 14, 411 01, Gothenburg, Sweden.
| | - Susanne Beischer
- Sportrehab Sports Medicine Clinic, Stampgatan 14, 411 01 Gothenburg, Sweden ,grid.8761.80000 0000 9919 9582Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, 405 30 Gothenburg, Sweden
| | - Roland Thomeé
- Sportrehab Sports Medicine Clinic, Stampgatan 14, 411 01 Gothenburg, Sweden ,grid.8761.80000 0000 9919 9582Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, 405 30 Gothenburg, Sweden
| | - Eric Hamrin Senorski
- Sportrehab Sports Medicine Clinic, Stampgatan 14, 411 01 Gothenburg, Sweden ,grid.8761.80000 0000 9919 9582Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, 405 30 Gothenburg, Sweden
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98
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Anterior cruciate ligament-return to sport after injury scale: validation of the Norwegian language version. Knee Surg Sports Traumatol Arthrosc 2020; 28:2634-2643. [PMID: 32062685 PMCID: PMC7429529 DOI: 10.1007/s00167-020-05901-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/03/2020] [Indexed: 11/21/2022]
Abstract
PURPOSE Evidence is emerging on the importance of psychological readiness to return to sport after anterior cruciate ligament (ACL) reconstruction. The ACL-Return to Sport after Injury scale (ACL-RSI) is developed to assess this. The aim of the current study was to translate ACL-RSI into Norwegian and examine the measurement properties of the Norwegian version (ACL-RSI-No). METHODS ACL-RSI was translated according to international guidelines. A cohort of 197 ACL-reconstructed patients completed ACL-RSI-No and related questionnaires nine months post-surgery. One hundred and forty-six patients completed hop tests and 142 patients completed strength tests. Face and structural validity (confirmative factor analysis and explorative analyses), internal consistency [Cronbach's alpha (α)], test-retest reliability [Intraclass Correlation Coefficients (ICC)], measurement error [Standard error of measurement (SEM) and smallest detectable change at individual (SDCind) and group level (SDCgroup)] and construct validity (hypotheses testing; independent t tests, Pearson's r) were examined. RESULTS ACL-RSI-No had good face validity. Factor analyses suggested that the use of a sum score is reasonable. Internal consistency and test-retest reliability were good (α 0.95, ICC 0.94 (95% CI 0.84-0.97) and measurement error low (SEM 5.7). SDCind was 15.8 points and SDCgroup was 2.0. Six of seven hypotheses were confirmed. CONCLUSIONS ACL-RSI-No displayed good measurement properties. Factor analyses suggested one underlying explanatory factor for "psychological readiness"-supporting the use of a single sum score. ACL-RSI-No can be used in the evaluation of psychological readiness to return to sport after ACL injury. LEVEL OF EVIDENCE III.
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99
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O'Connor RF, King E, Richter C, Webster KE, Falvey ÉC. No Relationship Between Strength and Power Scores and Anterior Cruciate Ligament Return to Sport After Injury Scale 9 Months After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2020; 48:78-84. [PMID: 31877093 DOI: 10.1177/0363546519887952] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Psychological factors including self-reported readiness to return to sport (RTS) after anterior cruciate ligament reconstruction (ACLR) measured with the Anterior Cruciate Ligament Return to Sport After Injury (ACL-RSI) scale have been shown to correlate with RTS. Physical deficits have been shown to exist in the later stages after ACLR rehabilitation. No previous studies have investigated the relationship between self-reported readiness to RTS and objective physical measures of power and strength. PURPOSE To investigate the relationship between ACL-RSI scores and measures of strength and power scores after ACLR. STUDY DESIGN Case control study; Level of evidence, 3. METHODS This study recruited 452 male athletes who had undergone primary ACLR. Each athlete completed the ACL-RSI questionnaire, isokinetic strength testing, and jump testing approximately 9 months after surgery. RESULTS ACL-RSI scores showed a trivial or weak correlation with strength and power measures at 9 months after surgery (r = 0.06-0.16). Similar results were found for the relationship between ACL-RSI scores and limb symmetry index for strength and power measures (r = 0.04-0.15). Comparing the strength and power measures of athletes with higher (≥90) ACL-RSI scores (n = 93) versus athletes with lower (≤75) ACL-RSI scores (n = 92) showed no significant differences except for isokinetic hamstring strength, but with a trivial effect size (P = .040; effect size = 0.15). CONCLUSION Self-reported readiness to RTS as measured by the ACL-RSI had little or no relationship with athletes' strength and power measures, and there was no meaningful difference in strength and power between athletes with higher and lower ACL-RSI scores at 9 months after ACLR. The findings suggest that psychological recovery and physical recovery after ACLR are different constructs, and strategies to measure and address each construct separately may be necessary to ensure successful RTS after ACLR.
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Affiliation(s)
- Richard F O'Connor
- Department of Medicine, University College Cork, Cork, Republic of Ireland.,Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Republic of Ireland
| | - Enda King
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Republic of Ireland
| | - Chris Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Republic of Ireland
| | - Kate E Webster
- School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - Éanna Cian Falvey
- Department of Medicine, University College Cork, Cork, Republic of Ireland.,Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Republic of Ireland
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100
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Batty LM, Feller JA, Hartwig T, Devitt BM, Webster KE. Single-Leg Squat Performance and Its Relationship to Extensor Mechanism Strength After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2019; 47:3423-3428. [PMID: 31633995 DOI: 10.1177/0363546519878432] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Performance in strength and functional testing is important when considering return to sport after anterior cruciate ligament (ACL) reconstruction. Both knee extensor strength and the single-leg squat (SLS) have been used in this context. PURPOSE To evaluate the relationship between knee extensor strength and SLS performance after primary ACL reconstruction. STUDY DESIGN Cohort study (Diagnosis); Level of evidence, 3. METHODS A prospective cohort of 100 patients was assessed 6 and 12 months after primary ACL reconstruction with a hamstring tendon autograft. Knee extensor peak torque was measured. Three sequential SLSs were performed, and the maximum flexion angle identified from frame-by-frame video analysis was used as the measure of squat performance. A limb symmetry index (LSI) was calculated and satisfactory performance defined as ≥90%. RESULTS Extensor mechanism strength deficits were seen in 75% of patients at 6 months and 57% at 12 months postoperatively. Mean extensor mechanism strength showed a large improvement between 6 and 12 months (123.6 vs 147.8 N·m, respectively; P < .001; Cohen d = 1.10), and while there was also a statistically significant improvement in the mean maximum flexion angle, the change was small (66.1° vs 68.1°, respectively; P = .011; Cohen d = 0.26). There was a weak positive correlation between knee extensor strength and the SLS maximum flexion angle at 6 months (r = 0.342; P < .001) and 12 months (r = 0.245; P = .014). An SLS LSI <90% was 80% specific and 35% sensitive for extensor mechanism weakness at 6 months and 79% specific and 18% sensitive at 12 months. CONCLUSION Extensor mechanism strength deficits are common after ACL reconstruction but reduce between 6 and 12 months. The SLS maximum flexion angle has a weak linear relationship to knee extensor strength. SLS performance has high specificity but low sensitivity in identifying extensor mechanism strength deficits. The SLS maximum flexion angle is therefore a suboptimal surrogate test to identify extensor mechanism strength deficits as diagnosed by isokinetic dynamometric testing. However, unsatisfactory SLS performance indicates a very high chance of underlying extensor mechanism weakness.
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Affiliation(s)
| | | | | | | | - Kate E Webster
- School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
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