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Sadeqi S, Norte GE, Murray A, Erbulut DU, Goel VK. Effect of Whole Body Parameters on Knee Joint Biomechanics: Implications for ACL Injury Prevention During Single-Leg Landings. Am J Sports Med 2023; 51:2098-2109. [PMID: 37259968 DOI: 10.1177/03635465231174899] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Previous studies have examined the effect of whole body (WB) parameters on anterior cruciate ligament (ACL) strain and loads, as well as knee joint kinetics and kinematics. However, articular cartilage damage occurs in relation to ACL failure, and the effect of WB parameters on ACL strain and articular cartilage biomechanics during dynamic tasks is unclear. PURPOSES (1) To investigate the effect of WB parameters on ACL strain, as well as articular cartilage stress and contact force, during a single-leg cross drop (SLCD) and single-leg drop (SLD). (2) To identify WB parameters predictive of high ACL strain during these tasks. STUDY DESIGN Descriptive laboratory study. METHODS Three-dimensional motion analysis data from 14 physically active men and women were recorded during an SLCD and SLD. OpenSim was used to obtain their kinematics, kinetics, and muscle forces for the WB model. Using these data in kinetically driven finite element simulations of the knee joint produced outputs of ACL strains and articular cartilage stresses and contact forces. Spearman correlation coefficients were used to assess relationships between WB parameters and ACL strain and cartilage biomechanics. Moreover, receiver operating characteristic curve analyses and multivariate binary logistic regressions were used to find the WB parameters that could discriminate high from low ACL strain trials. RESULTS Correlations showed that more lumbar rotation away from the stance limb at peak ACL strain had the strongest overall association (ρ = 0.877) with peak ACL strain. Higher knee anterior shear force (ρ = 0.895) and lower gluteus maximus muscle force (ρ = 0.89) at peak ACL strain demonstrated the strongest associations with peak articular cartilage stress or contact force in ≥1 of the analyzed tasks. The regression model that used muscle forces to predict high ACL strain trials during the dominant limb SLD yielded the highest accuracy (93.5%), sensitivity (0.881), and specificity (0.952) among all regression models. CONCLUSION WB parameters that were most consistently associated with and predictive of high ACL strain and poor articular cartilage biomechanics during the SLCD and SLD tasks included greater knee abduction angle at initial contact and higher anterior shear force at peak ACL strain, as well as lower gracilis, gluteus maximus, and medial gastrocnemius muscle forces. CLINICAL RELEVANCE Knowledge of which landing postures create a high risk for ACL or cartilage injury may help reduce injuries in athletes by avoiding those postures and practicing the tasks with reduced high-risk motions, as well as by strengthening the muscles that protect the knee during single-leg landings.
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Affiliation(s)
- Sara Sadeqi
- Engineering Center for Orthopaedic Research Excellence (E-CORE), Departments of Bioengineering and Orthopaedic Surgery, University of Toledo, Toledo, OH, USA
| | - Grant E Norte
- Motion Analysis and Integrative Neurophysiology Lab, Department of Exercise and Rehabilitation Sciences, College of Health and Human Services, University of Toledo, Toledo, Ohio, USA
| | - Amanda Murray
- Motion Analysis and Integrative Neurophysiology Lab, Department of Exercise and Rehabilitation Sciences, College of Health and Human Services, University of Toledo, Toledo, Ohio, USA
| | - Deniz U Erbulut
- Engineering Center for Orthopaedic Research Excellence (E-CORE), Departments of Bioengineering and Orthopaedic Surgery, University of Toledo, Toledo, OH, USA
| | - Vijay K Goel
- Engineering Center for Orthopaedic Research Excellence (E-CORE), Departments of Bioengineering and Orthopaedic Surgery, University of Toledo, Toledo, OH, USA
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Simonson R, Piussi R, Högberg J, Senorski C, Thomeé R, Samuelsson K, Senorski EH. Effect of Quadriceps and Hamstring Strength Relative to Body Weight on Risk of a Second ACL Injury: A Cohort Study of 835 Patients Who Returned to Sport After ACL Reconstruction. Orthop J Sports Med 2023; 11:23259671231157386. [PMID: 37152619 PMCID: PMC10155024 DOI: 10.1177/23259671231157386] [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: 11/15/2022] [Accepted: 01/01/2023] [Indexed: 05/09/2023] Open
Abstract
Background Anterior cruciate ligament (ACL) injuries are common sports-related injuries with a high risk of reinjury after return to sport (RTS). Rehabilitation aims to regain symmetrical knee strength and function to minimize the risk of a second ACL injury after RTS. Purpose To determine the effect of absolute quadriceps and hamstring strength, normalized by body weight, on the risk of a second ACL injury during the first 2 years after RTS in patients who have undergone ACL reconstruction (ACLR). Study Design Cohort study; Level of evidence, 3. Methods Data from patients after index ACLR at the time of RTS were extracted from a rehabilitation registry-Project ACL. Patients who had performed isokinetic tests for quadriceps and hamstring strength and hop tests before RTS were included. The endpoint was a second ACL injury or a follow-up of 2 years after RTS after ACLR. Results A total of 835 patients (46% women), with a mean age of 23.9 ± 7.7 years, were included. During the study period, 69 (8.3%) second ACL injuries (ipsilateral and contralateral) occurred. Greater relative quadriceps strength in the injured leg increased the risk of a second ACL injury (relative risk [RR], 1.69 [95% CI, 1.05-2.74]; P = .032). In patients who had recovered symmetrical quadriceps strength (limb symmetry index ≥90%), there was no effect of quadriceps strength on the risk of second ACL injury (RR, 1.33 [95% CI, 0.69-2.56]; P = .39). Quadriceps strength on the healthy side or hamstring strength, regardless of side, had no effect on the risk of a second ACL injury. Conclusion Greater relative quadriceps strength in the injured leg at the time of RTS after ACLR was associated with an increased risk of a second ACL injury. There was no effect of relative quadriceps strength on the risk of a second ACL injury in patients who had recovered symmetrical quadriceps strength.
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Affiliation(s)
- Rebecca Simonson
- Sportrehab Sports Medicine Clinic,
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, Gothenburg, Sweden
- Rebecca Simonsson, PT, MSc,
Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of
Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg,
Gothenburg, Sweden; Sportrehab, Sports Medicine Clinic, Gothenburg, Sweden,
Sahlgrenska Sports Medicine Center. Box 455, SE-405 30, Gothenburg, Sweden
() (Twitter:
@BeccaSimonson2)
| | - Ramana Piussi
- Sportrehab Sports Medicine Clinic,
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, Gothenburg, Sweden
| | - Johan Högberg
- Sportrehab Sports Medicine Clinic,
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, Gothenburg, Sweden
| | - Carl Senorski
- Sportrehab Sports Medicine Clinic,
Gothenburg, Sweden
| | - Roland Thomeé
- Sportrehab Sports Medicine Clinic,
Gothenburg, Sweden
- Unit of Physiotherapy, Department of
Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska
Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kristian Samuelsson
- Sahlgrenska Sports Medicine Center,
Gothenburg, Sweden
- Department of Orthopaedics, Institute
of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg,
Sweden
- Department of Orthopaedics, Sahlgrenska
University Hospital, Gothenburg, Sweden
| | - Eric Hamrin Senorski
- Sportrehab Sports Medicine Clinic,
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, Gothenburg, Sweden
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Jeon YS, Lee JW, Kim SH, Kim SG, Kim YH, Bae JH. Determining the Substantial Clinical Benefit Values for Patient-Reported Outcome Scores After Primary ACL Reconstruction. Orthop J Sports Med 2022; 10:23259671221091795. [PMID: 35547609 PMCID: PMC9083051 DOI: 10.1177/23259671221091795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/08/2022] [Indexed: 11/15/2022] Open
Abstract
Background: Little is known about the threshold of patient-reported outcomes (PROs) at which patients perceive to have attained a substantial clinical benefit (SCB) after anterior cruciate ligament reconstruction (ACLR). Purpose: To determine the SCB value of PROs 1 year after ACLR in the general population and to determine factors that predict SCB attainment. Study Design: Case series; Level of evidence, 4. Methods: The Lysholm, International Knee Documentation Committee Subjective Knee Evaluation Form (IKDC-SKF), Tegner, and Anterior Cruciate Ligament–Return to Sport after Injury (ACL-RSI) scores were examined postoperatively in 88 patients who underwent ACLR. At the 12-month follow-up visit, the patients answered 2 independent anchor questions about daily discomfort and functional recovery. Receiver operating characteristic (ROC) curve analysis was used to differentiate PRO scores between patients who responded as having no difficulty versus some difficulty with daily knee discomfort (anchor question 1) and between patients with substantial recovery versus nonsubstantial recovery of knee function (anchor question 2). The area under the ROC curve (AUC) was calculated to assess reliability, and the differences between the AUC values were compared. Multivariate logistic regression analyses were performed to determine predictors affecting SCB attainment. Results: There were 76 patients enrolled in this study. The 12-month Lysholm, IKDC-SKF, Tegner, and ACL-RSI scores that corresponded to the SCB were 88.0, 85.1, 6.5, and 64.2 for anchor question 1 and 84.5, 77.7, 5.5, and 57.1 for anchor question 2, respectively. The AUC values obtained from the ROC curve analyses showed acceptable to excellent reliability (anchor question 1: Lysholm, 0.90; IKDC-SKF, 0.86; Tegner, 0.71; ACL-RSI, 0.92; anchor question 2: Lysholm, 0.80; IKDC-SKF, 0.90; Tegner, 0.82; ACL-RSI, 0.82) and were all statistically significant ( P < .001 to P = .028). For all PROs, younger age (Odds Ratio (OR), 0.88-0.94; P < .001 to P = .027) and greater muscle strength (OR, 1.03-1.07; P < .001 to P = .023) were predictive factors of SCB attainment. Conclusion: The postoperative Lysholm, IKDC-SKF, Tegner, and ACL-RSI scores showed acceptable to excellent reliability in predicting the SCB after ACLR in the general population. Age at surgery and thigh muscle strength influenced SCB attainment for all PROs.
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Affiliation(s)
- Young-Sik Jeon
- Department of Orthopedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ja-Woon Lee
- Department of Orthopedic Surgery, Armed Forces Capital Hospital, Seongnam, Republic of Korea
| | - Soo-Hyun Kim
- Department of Orthopedic Surgery, Naval Maritime Medical Center, Jinju, Republic of Korea
| | - Sang-Gyun Kim
- Department of Orthopedic Surgery, National Medical Center, Seoul, Republic of Korea
| | - Young-Ha Kim
- Department of Orthopedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Hoon Bae
- Department of Orthopedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
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Arthrogenic Muscle Inhibition Following Anterior Cruciate Ligament Injury. J Sport Rehabil 2022; 31:694-706. [PMID: 35168201 DOI: 10.1123/jsr.2021-0128] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 10/06/2021] [Accepted: 10/28/2021] [Indexed: 11/18/2022]
Abstract
Arthrogenic muscle inhibition (AMI) is a common impairment in individuals who sustain an anterior cruciate ligament (ACL) injury. The AMI causes decreased muscle activation, which impairs muscle strength, leading to aberrant movement biomechanics. The AMI is often resistant to traditional rehabilitation techniques, which leads to persistent neuromuscular deficits following ACL reconstruction. To better treat AMI following ACL injury and ACL reconstruction, it is important to understand the specific neural pathways involved in AMI pathogenesis, as well as the changes in muscle function that may impact movement biomechanics and long-term structural alterations to joint tissue. Overall, AMI is a critical factor that limits optimal rehabilitation outcomes following ACL injury and ACL reconstruction. This review discusses the current understanding of the: (1) neural pathways involved in the AMI pathogenesis following ACL injury; (2) consequence of AMI on muscle function, joint biomechanics, and patient function; and (3) development of posttraumatic osteoarthritis. Finally, the authors review the evidence for interventions specifically used to target AMI following ACL injury.
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Hamstrings Muscle Morphology After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. Sports Med 2021; 51:1733-1750. [PMID: 33638795 DOI: 10.1007/s40279-021-01431-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND Hamstrings muscle morphology is determinant of muscle function (i.e. strength). Among individuals with ACL reconstruction (ACLR), less cross-sectional area (CSA) and volume in the ACLR-limb are associated with muscle weakness, and may contribute to lower rates of return to preinjury activity level and an increased risk for long-term sequelae. OBJECTIVES To effectively treat muscular impairments, an accurate understanding of differences in hamstrings morphology following ACLR is needed. A systematic review and meta-analysis were undertaken to describe the morphology of the hamstring muscle complex after ACLR. METHODS We searched five databases for studies evaluating the difference between hamstrings size and architecture in individuals with ACLR. Two independent reviewers assessed each paper for inclusion and quality. Means and standard deviations were extracted from each included study to allow fixed-effect size meta-analysis calculations for comparison of results. RESULTS Twenty-four studies were included for final review. Eight categories of morphological outcomes were identified, and studies were grouped accordingly: (1) volume, (2) cross-sectional area (CSA), (3) muscle length, (4) muscle thickness, (5) fascicle length, (6) pennation angle, (7) fiber area, and (8) fiber type. Meta-analysis demonstrated lower hamstrings volume in the ACLR-limb in both contralateral and control group comparisons, and lower CSA, length, and thickness in the ACLR-limb in contralateral comparisons. The semitendinosus and gracilis were most profoundly impacted. Limited moderate evidence demonstrated greater biceps femoris pennation angle in the ACLR-limb. CONCLUSIONS Individuals with ACLR demonstrated large deficits in semitendinosus and gracilis muscle CSA and volume in the ACLR-limb compared contralaterally, with no differences observed in the biceps femoris or semimembranosus. Clinical implications regarding assessment and treatment of individuals with ACLR are discussed.
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