scholarly journals HOP TEST AS A TOOL FOR THE ASSESSMENT AND PREVENTION OF INJURIES IN FOOTBALLERS DURING PRESEASON

2018 ◽  
Vol 6 (6_suppl3) ◽  
pp. 2325967118S0004
Author(s):  
F García-Bol ◽  
V Posada-Franco ◽  
A Roldán-Valero ◽  
R Del Caño-Espinel
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Reference Values ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Performance Criteria ◽  
Return To Sports ◽  
Hop Tests ◽  
Hop Test ◽  
Anterior Cruciate

Hop Tests (unipodal horizontal jumps) have been recommended as one of the reliable assessment tests when allowing a return to competition for a sportsperson after an anterior cruciate ligament injury1,2,3,4. Currently, comparison is made of the results with the contralateral limb through the symmetry index, a method which might not provide sufficient security upon the return to competitive sport5. Hop tests can be used in preseason to gain reference values prior to a possible injury. The objective of this review is to analise the scientific literature such as the F-Marc6 (reference manual of FIFA) to confirm whether include said tests in preseason for football teams. A search was conducted in the Pubmed y Cochrane databases (17/04/17) with the search terms “Hop Test”, “Football”, “Soccer”, and “Preseason”. Articles in English and Spanish were both accepted. Articles excluded were those that did not make reference to the knee, to football, and those that did not conduct tests during preseason. From a total of 33 articles, 4 with these search criteria were included, 5 articles were added trough the bibliography of other studies, and the F-Marc manual was analised. 4 of the articles used the hop tests in preseason for some type of study, of which 3 were used as part of a prospective assessment for the season. On the other hand, the F-Marc does not consider Hop Tests as an assessment test. Hop tests were not found to be used in preseason as reference values prior to possible future injuries, data which could be beneficial for a safe return to sport. Harris J, Abrams G, Bach B, Williams D, Heidloff D, Bush-Joseph C, Verma N, Forsythe B, Cole B. Return to Sport After ACL Reconstruction. ORTHOPEDICS. 2014; 37: e103-e108. Barber-Westin SD, Noyes FR. Factors used to determine return to unrestricted sports activities after anterior cruciate ligament reconstruction. Arthroscopy. 2011 Dec;27(12):1697-705. Thomeé R, Kaplan Y, Kvist J, Myklebust G, Risberg MA, Theisen D, Tsepis E, Werner S, Wondrasch B, Witvrouw E. Muscle strength and hop performance criteria prior to return to sports after ACL reconstruction. Knee Surg Sports Traumatol Arthrosc. 2011 Nov;19(11):1798-805. Bolgla LA, Keskula DR. Reliability of lower extremity functional performance tests. J Orthop Sports Phys Ther. 1997 Sep;26(3):138-42. Wellsandt E, Failla MJ, Snyder-Mackler L. Limb Symmetry Indexes Can Overestimate Knee Function After Anterior Cruciate Ligament Injury. J Orthop Sports Phys Ther. 2017 Mar 29:1-18. F-MARC. Football Medicine Manual. 2nd Edition. Available from: http://f-marc.com . 2017.

Hop Performance After Return to Sport in Anterior Cruciate Ligament-Reconstructed Gaelic Football and Hurling Athletes

2020 ◽  
pp. 1-10
Author(s):  
Damien Murphy ◽  
Quinette A. Louw ◽  
Colum Moloney ◽  
Dominique Leibbrandt ◽  
Amanda M. Clifford
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Functional Performance ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Severe Injuries ◽  
Cross Sectional ◽  
Hop Tests ◽  
Hop Test ◽  
Anterior Cruciate

Purpose: Anterior cruciate ligament (ACL) injuries are among the most severe injuries in the Gaelic Athletic Association. Hop tests measure functional performance after ACL reconstruction as they replicate the key requirements for a match situation. However, research examining functional recovery of ACL-reconstructed Gaelic athletes is lacking. The objective of this study is to determine if athletes restore normal hop symmetry after ACL reconstruction and to examine if bilateral deficiencies persist in hop performance following return to sport. Methods: A cross-sectional design was used to evaluate hop performance of 30 ACL-reconstructed Gaelic athletes who had returned to competition and 30 uninjured controls in a battery of hop tests including a single, 6-m, triple, and triple-crossover hop test. Results: In each test, the mean symmetry score of the ACL reconstruction group was above the cutoff for normal performance of 90% adopted by this study (98%, 99%, 97%, and 99% for the single, 6-m, triple, and triple-crossover hop, respectively). No significant differences in absolute hop scores emerged between involved and control limbs, with the exception of the single-hop test where healthy dominant limbs hopped significantly further than ACL-reconstructed dominant limbs (P = .02). No significant deficits were identified on the noninvolved side. Conclusions: The majority of ACL-reconstructed Gaelic athletes demonstrate normal levels of hop symmetry after returning to competition. Suboptimal hop performance can persist on the involved side compared with control limbs. Targeted rehabilitation may be warranted after returning to competition to restore performance to levels of healthy uninjured athletes.

scholarly journals Anterior Cruciate Ligament Reconstruction with Concomitant Osteochondral Allograft Transplantation versus Anterior Cruciate Ligament Reconstruction: A Comparative Matched-Group Analysis of Return to Sport and Satisfaction

2019 ◽  
Vol 7 (7_suppl5) ◽  
pp. 2325967119S0026
Author(s):  
Grant Hoerig Garcia ◽  
Michael L. Redondo ◽  
Joseph Liu ◽  
David R. Christian ◽  
Adam Blair Yanke ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Activity Level ◽  
Return To Sports ◽  
Inclusion Criteria ◽  
Pain Scores ◽  
Anterior Cruciate

Objectives: Anterior cruciate ligament (ACL) rupture is commonly associated with articular cartilage injury. Few studies have evaluated the influence of cartilage repair on the outcome of ACL reconstruction. Currently, no known study has examined the return to sport rates of concomitant ACL reconstruction and OCA. The purpose of this study is to evaluate rate and level of return to sports, as well as long-term outcomes, between a matched cohort of isolated ACL reconstruction (ACLR) versus ACL reconstruction with concomitant OCA (ACLR/OCA). Methods: A prospectively collected registry was queried retrospectively for consecutive patients who underwent ACL reconstruction with concomitant OCA. Inclusion criteria were preoperative diagnosis of ACL rupture and more than 2 years of follow-up. After meeting the inclusion criteria, all ACL reconstructions with concomitant OCA were matched to two isolated ACL reconstruction patients via +/- 5 years of age at time of surgery, gender, revision status, and ACL reconstruction graft type. At final follow-up, patients were asked to complete a subjective sports questionnaire, the Marx activity scale, a visual analog scale (VAS), and a satisfaction questionnaire. Results: Seventeen ACL/OCA patients met inclusion criteria. Fourteen eligible 2:1 matched pairs (28 ACLR; 14 ACLR/OCA;), were identified for analysis. The average age at the time of surgery was 33.89 +/- 8.64 and 35.92 +/- 6.22 for the ACLR and ACLR/OCA groups, respectively (P = .44). Average follow-up was 4.09 years and 5.14 years for the ACLR and ACLR/OCA groups, respectively (P = .17). At final follow-up, the average Marx activity scalescores were 6.54 for ACRL patients and 1.57 for ACLR/OCA patients; final scores were significantly different between groups (P < 0.01). The average VAS pain scores at final follow-up were 1.96 in the ACLR and 3.64 in ACLR/OCA groups with the ACLR/OCA patients displaying significantly worse final VAS pain scores (P = .03). 89.3% of ACLR patients (25 of 28) returned to at least 1 sport postoperatively compared with 57.1% of ACLR/OCA patients (8 of 14) (P=0.04). At final follow-up, 14.2% (2 of 14) of the ACLR/OCA group and 32.1% (9 of 28) of the ACLR group reported starting a new sport or activity. Average timing for full return to sports was 9.57 +/- 5.53 months and 9.27 +/- 3.25 months for the ACLR/OCA and ACLR groups, respectively (P = .86). At final follow-up, 33.3% and 57.1% of patients returned to better or same level of sport for the ACLR/OCA and ACLR groups, respectively (P = .06). Significantly more ACLR/OCA patients reported their activity level was hindered by their knee (92.8% ACLR/OCA; 60.7% ACLR). Significantly more ACLR patients reported satisfaction with their surgery compared with ACLR/OCA patients (89% vs 57%) (P < 0.01), however no statistical difference was observed in satisfaction with ability to play sports between groups. Conclusion: Significantly less ACLR/OCA patients (57.1%) were able to return to at least 1 sport when compared to a matched ACLR cohort (89.3%). At final follow-up, a higher percentage of ACLR patients were able to return to pretreatment activity intensity level or better (ACLR/OCA, 33.3%; ACLR, 57.1%). ACLR/OCA patients had significantly more pain and lower Marx activity scores. Despite a lower return to sport rate, there was no statistical difference in reported satisfaction with activity level between the groups, however the ACLR/OCA groups reported significantly lower overall surgical satisfaction.

scholarly journals Eight-Months After Anterior Cruciate Ligament Reconstruction: Is It Time to Return to Physical Activity?

2021 ◽  
Vol 2 (121) ◽  
pp. 21-27
Author(s):  
Saulė Salatkaitė ◽  
Laimonas Šiupšinskas ◽  
Renata Žumbakytė-Šermukšnienė ◽  
Rimtautas Gudas
Keyword(s):  
Physical Activity ◽  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Activity Level ◽  
Test Results ◽  
Hop Tests ◽  
Hop Test ◽  
Anterior Cruciate ◽  
Single Leg Hop Test

Background. Return to participation in sport is an important outcome when evaluating the success of anterior cruciate ligament (ACL) reconstruction surgery. A review by Arden et al. (2014) demonstrates that just because an athlete has surgery, it does not automatically mean that they will return to sport. So, the purpose of this study was to assess if patients could return to their pre-injury activity level 8 months after ACLR. Methods. Patients completed IKDC-2000, ACL-RSI questionnaires, underwent FMS, YBT, HOP test sets and drop jump tests, which were evaluated with the LESS. ACL laxity was measured by using a GNRB® device. Participants were 81 patients. They were divided into two groups based on single leg HOP test results. The first group included 30 persons who all had their four single leg HOP test scores above 90%. The second group consisted of 51 persons for whom at least one of the single leg HOP tests scored lower than 90%. Results. IKDC and HOP test results in the first group scored higher than in the second group. Psychological confidence was higher in the first group, who had better HOP test results. For the first group, FMS and LESS results were better than those for the second group. Moderate positive correlation was found between LESS scores and laxity results, FMS, three HOP sub-tests. IKDC had the biggest number of correlations with other tests. Results showed negative and weak correlation with laxity results using 134 N power, as well as positive and moderate correlation with HOP sub-tests, FMS, ACL-RSI. Single HOP for distance, triple HOP for distance, crossover HOP for distance and LESS increased the odds of achieving RTS criteria. No other factors were found to be associated with the accomplishment of reaching RTS criteria after ACLR. Conclusions. The main factor which can help decide if a person can return to their pre-injury level of physical activity are the single leg HOP test and LESS. The use of single leg HOP tests and LESS along with psychological and self-reported evaluations is the best test combination for assessment 8 months after ACLR. Keywords: ACL reconstruction, function tests, return to play, jump tests, psychological readiness.

scholarly journals Hop Testing Provides a Reliable and Valid Outcome Measure During Rehabilitation After Anterior Cruciate Ligament Reconstruction

2007 ◽  
Vol 87 (3) ◽  
pp. 337-349 ◽  
Author(s):  
Andrea Reid ◽  
Trevor B Birmingham ◽  
Paul W Stratford ◽  
Greg K Alcock ◽  
J Robert Giffin
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Outcome Measure ◽  
Cruciate Ligament ◽  
Measurement Properties ◽  
Global Rating ◽  
Symmetry Index ◽  
Limb Symmetry Index ◽  
Hop Tests ◽  
Anterior Cruciate

Background and Purpose Although various hop tests have been proposed as performance-based outcome measures following anterior cruciate ligament (ACL) reconstruction, limited reports of their measurement properties exist. The purpose of this study was to investigate the reliability and longitudinal validity of data obtained from hop tests during rehabilitation after ACL reconstruction. Subjects Forty-two patients, 15 to 45 years of age, who had undergone ACL reconstruction participated in the study. Methods and Measures The study design was prospective and observational with repeated measures. The subjects performed a series of 4 hop tests on 3 separate occasions within the 16th week following surgery and on a fourth occasion 6 weeks later. The tests were a single hop for distance, a 6-m timed hop, a triple hop for distance, and crossover hops for distance. Performance on the ACL-reconstructed limb was expressed as a percentage of the performance on the nonoperative limb, termed the “limb symmetry index.” Subjects also completed the Lower Extremity Functional Scale and a global rating of change questionnaire. Results Intraclass correlation coefficients for limb symmetry index values ranged from .82 to .93. Standard errors of measurement were 3.04% to 5.59%. Minimal detectable changes, at the 90% confidence level, were 7.05% to 12.96%. Changes in hop test scores on the operative limb were statistically greater than changes on the nonoperative limb. Pearson correlations (r) between change in hop performances and self-reported measures ranged from .26 to .58. Discussion and Conclusion The results show that the described series of hop tests provide a reliable and valid performance-based outcome measure for patients undergoing rehabilitation following ACL reconstruction. These findings support the use and facilitate the interpretation of hop tests for research and clinical practice.

Timeline for Maximal Subjective Outcome Improvement After Anterior Cruciate Ligament Reconstruction

2018 ◽  
Vol 47 (10) ◽  
pp. 2501-2509 ◽  
Author(s):  
Avinesh Agarwalla ◽  
Richard N. Puzzitiello ◽  
Joseph N. Liu ◽  
Gregory L. Cvetanovich ◽  
Anirudh K. Gowd ◽  
...  
Keyword(s):  
Systematic Review ◽  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Clinical Significance ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Pubmed Database ◽  
Patient Reported ◽  
Clinically Significant ◽  
Anterior Cruciate

Background: Anterior cruciate ligament (ACL) tears are one of the most common traumatic knee injuries experienced by athletes. Return to sport is considered the pinnacle endpoint among patients receiving ACL reconstruction. However, at the time of return to sport, patients may not be participating at their previous levels of function, as defined by clinical metrics. Purpose: To establish when patients perceive maximal subjective medical improvement according to patient-reported outcome measures (PROMs). Study Design: Systematic review. Methods: A systematic review of the PubMed database was conducted to identify studies that reported sequential PROMs up to a minimum of 2 years after ACL reconstruction. Pooled analysis was conducted for PROMs at follow-up points of 3 months, 6 months, 1 year, and 2 years. Clinically significant improvement was determined between pairs of intervals with the minimal clinically important difference. Results: This review contains 30 studies including 2253 patients who underwent ACL reconstruction. Clinically significant improvement in the KOOS (Knee injury and Osteoarthritis Outcome Score) was seen up to 1 year after ACL reconstruction, but no clinical significance was noted from 1 to 2 years. Clinically significant improvement in the IKDC (International Knee Documentation Committee) and Lysholm questionnaires was seen up to 6 months postoperatively, but no clinical significance was noted beyond that. Conclusion: After ACL reconstruction, maximal subjective medical improvement is established 1 year postoperatively, with no further perceived clinical improvement beyond this time point according to current PROMs. The KOOS may be a more responsive metric to subjective improvements in this patient cohort than other patient-reported outcomes, such as the IKDC and Lysholm. Clinical Relevance: After ACL reconstruction, patients perceive interval subjective improvements until 1 year postoperatively.

scholarly journals The hybrid anterior cruciate ligament reconstruction surgical technique does permit an accelerated early functional recovery and return to sport.

2017 ◽  
Vol 5 (5_suppl5) ◽  
pp. 2325967117S0017
Author(s):  
Peter Annear ◽  
Ebert Jay
Keyword(s):  
Anterior Cruciate Ligament ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Quadriceps Strength ◽  
Hamstring Graft ◽  
Cruciate Ligament Reconstruction ◽  
Hop Tests ◽  
Anterior Cruciate ◽  
Tegner Score

Objectives: A major reason for undergoing anterior cruciate ligament reconstruction (ACLR) for patients is to return to high demand activity and sport. Published literature supports a return to sport (RTS) at 6-12 months, though the recovery of lower limb strength and functional symmetry is critical and is linked with a patient’s ability to RTS, as well as reducing the incidence of secondary re-tear. This study aimed to compare clinical outcomes and RTS between patients undergoing ACLR utilizing a hamstring graft and those undergoing a hybrid technique which augments the hamstring graft with a synthetic LARS ligament. Methods: A non-randomized study design was used to compare clinical outcomes at 10-12 months post-surgery, in 82 patients undergoing conventional ACLR via a hamstring graft (HG) and 35 patients undergoing a hybrid hamstring/LARS graft (HLG). All patients were assessed using a range of patient-reported outcome (PRO) scores (IKDC, KOOS, Cinncinati, Lysholm, SF-36, Tegner, Noyes, Global Rating of Change – GRC). Limb symmetry indices (LSIs) presenting the operated limb as a percentage of the unaffected limb were calculated for several strength/functional assessments (peak isokinetic quadriceps and hamstring strength, the single, triple and triple crossover hop for distance, and the 6 m timed hop). Results: There were no group differences (p>0.05) in patient demographics and the majority of PROs. The HLG group perceived themselves to be significantly ‘more recovered’ (p=0.046) on the GRC scale (HLG = 3.2, HG = 2.2), and also reported a significantly greater (p=0.004) Tegner score (HLG = 7.2, HG = 5.9). For the HG group, 62% of patients had returned to Noyes Level 1 or 2 activities, versus 80% of the HLG group. For the Tegner score, 57% of patients reported a score >6, versus 77% of the HLG group. There were no significant differences (p>0.05) in LSIs between groups for the strength and functional hop tests. However, the HLG group demonstrated a mean LSI above 90% for all four hop tests, while all four were below 90% in the HG group. Both groups demonstrated mean hamstring strength LSIs above 90%, while the quadriceps strength LSI was 81.9% and 85.8% for the HG and HLG groups, respectively. Conclusion: Patients in the HLG group perceived themselves to be more recovered, and had returned to a higher level of activity/sport, compared with the HG group. While not significant, the HLG group did demonstrate more favorable functional hop and quadriceps strength LSIs, which has been linked with the ability to RTS and the incidence of ACL re-tear. A larger patient cohort and follow-up is required to observe long-term outcomes.

scholarly journals Arabic Version of the Short Anterior Cruciate Ligament–Return to Sport After Injury Scale: Translation, Cross-cultural Adaptation, and Validation

2022 ◽  
Vol 10 (1) ◽  
pp. 232596712110665
Author(s):  
Msaad Alzhrani ◽  
Hosam Alzahrani ◽  
Yasir S. Alshehri
Keyword(s):  
Anterior Cruciate Ligament ◽  
Internal Consistency ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Short Version ◽  
Return To Sports ◽  
Strongly Correlated ◽  
Retest Reliability ◽  
Anterior Cruciate ◽  
Test Retest Reliability

Background: The short version of the Anterior Cruciate Ligament–Return to Sport After Injury (ACL-RSI) scale is a self-reported questionnaire developed to assess the psychological readiness of patients to return to sports after ACL reconstruction (ACLR). Purpose: To translate, cross-culturally adapt, and validate the short version of the ACL-RSI scale into the Arabic language (ACL-RSI-Ar). Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: The original short version of the ACL-RSI scale was forward and backward translated, cross-culturally adapted, and validated following international standardized guidelines. Sixty patients who participated in sports activities and underwent ACLR completed the ACL-RSI-Ar, the International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, and Knee injury and Osteoarthritis Outcome Score (KOOS) scales. To assess test-retest reliability, 34 participants completed the ACL-RSI-Ar scale twice. Statistical tests were conducted to test the internal consistency, reliability, and construct and discriminant validity of the ACL-RSI-Ar scale. Results: The ACL-RSI-Ar showed adequate internal consistency (Cronbach alpha = 0.734) and excellent test-retest reliability (intraclass correlation coefficient, 0.871). The ACL-RSI-Ar was strongly correlated with the IKDC (Spearman ρ = 0.515, P < .001) and weakly to strongly correlated with all KOOS subscales (Spearman ρ = 0.247-0.590, P < .05). Patients who returned to sports had significantly higher scores on the ACL-RSI-Ar scale when compared with those who did not return to sports ( P = .001). Conclusion: The short ACL-RSI-Ar scale, as translated, was internally consistent, reliable, and valid for evaluating psychological readiness to return to sports after ACLR in Arabic-speaking patients.

scholarly journals Factors Associated With Psychological Readiness to Return to Sports With Cutting, Pivoting, and Jump-Landings After Primary ACL Reconstruction

2020 ◽  
Vol 8 (11) ◽  
pp. 232596712096448
Author(s):  
Junya Aizawa ◽  
Kenji Hirohata ◽  
Shunsuke Ohji ◽  
Takehiro Ohmi ◽  
Hideyuki Koga ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Regression Analysis ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Return To Play ◽  
Return To Sports ◽  
Factors Associated ◽  
Anterior Cruciate ◽  
Primary Acl Reconstruction ◽  
Jump Landings

Background: High psychological readiness is an important element for returning to sports after anterior cruciate ligament (ACL) reconstruction. Identifying factors that contribute to psychological readiness is essential for planning interventions to return to play. No studies have used multivariate analysis to clarify factors associated with psychological readiness to return to specific sports. Hypothesis: To identify factors that contribute to an athlete’s psychological readiness to return after ACL reconstruction to sports that require cutting, pivoting, and jump-landings. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Study participants were athletes who before injury had participated in sports with limited contact that required cutting, pivoting, and jump-landings (basketball, soccer, futsal, volleyball, badminton, tennis, and frisbee) and hoped to return to the same sport after reconstruction. Psychological readiness was measured using the Anterior Cruciate Ligament–Return to Sport After Injury Scale (ACL-RSI) in athletes more than 6 months after primary ACL reconstruction. To clarify factors associated with the ACL-RSI, univariate regression analysis and multivariate regression analysis were performed using the following independent variables: age, sex, body mass index, time from injury to reconstruction, time from reconstruction to testing, meniscal surgery, modified Tegner activity scale before injury, kinesiophobia, limb symmetry index of knee strength, limb symmetry indices of single-leg hop (SLH) distances, and subjective running ability. Results: Higher subjective running ability, a lower kinesiophobia score, and greater limb symmetry in the lateral SLH were positively associated with psychological readiness. Conclusion: The psychological readiness of athletes aiming to return after ACL reconstruction to limited-contact sports that require cutting, pivoting, and jump-landings was affected by subjective running ability, kinesiophobia, and asymmetry of lateral SLH distance. This information may be useful in planning appropriate interventions and thereby increasing the likelihood of an athlete’s returning to such sports.

How Is Psychological Outcome Related to Knee Function and Return to Sport Among Adolescent Athletes After Anterior Cruciate Ligament Reconstruction?

2019 ◽  
Vol 47 (7) ◽  
pp. 1567-1575 ◽  
Author(s):  
Susanne Beischer ◽  
Eric Hamrin Senorski ◽  
Christoffer Thomeé ◽  
Kristian Samuelsson ◽  
Roland Thomeé
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Self Efficacy ◽  
Muscle Function ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Adolescent Athletes ◽  
Psychological Outcome ◽  
Patient Reported ◽  
Anterior Cruciate

Background: Adult patients who succeed in returning to their preinjury levels of sport after anterior cruciate ligament (ACL) reconstruction have been characterized by a more positive psychological response. It is not known whether this relationship is valid for adolescent athletes. Purpose: To investigate psychological readiness to return to sport, knee-related self-efficacy, and motivation among adolescent (15-20 years old) and adult (21-30 years old) athletes after ACL reconstruction. A further aim was to compare athletes (15-30 years old) who had recovered their muscle function and returned to sport with athletes who had not. Study Design: Case-control study; Level of evidence, 3. Methods: Data were extracted from a rehabilitation-specific register 8 and 12 months after ACL reconstruction. Athletes previously involved in knee-strenuous sport who had undergone primary ACL reconstruction were included. Data comprised psychological patient-reported outcomes and results from 5 tests of muscle function. Comparisons were performed between age groups, between athletes who had and had not recovered their muscle function, and between patients who had returned to sport and not. Results: In all, 384 (50% females) and 271 athletes (52% females) were included at the 8- and 12- month follow-ups, respectively. Enhanced self-efficacy was reported at both follow-ups by adolescents and by athletes who had recovered their muscle function. Athletes who had recovered their muscle function reported higher ( P = .0007) motivation to achieve their goals. Subgroup analyses on patient sex revealed findings similar to those in the main analyses for females but not for males. Moreover, adolescent and adult athletes who had returned to sport reported significantly higher levels on the Knee Self-Efficacy Scale and the ACL–Return to Sport After Injury scale at both follow-ups. Conclusion: Adolescent athletes, especially females, perceived enhanced self-efficacy, had a higher return-to-sport rate, and were more motivated to reach their goals after ACL reconstruction compared with adults. Regardless of age, athletes who had returned to sport and athletes with more symmetrical muscle function had a stronger psychological profile.

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