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.

scholarly journals Revision Anterior Cruciate Ligament Reconstruction

2013 ◽  
Vol 6 (6) ◽  
pp. 504-518 ◽  
Author(s):  
Jeffrey Wilde ◽  
Asheesh Bedi ◽  
David W. Altchek
Keyword(s):  
Anterior Cruciate Ligament ◽  
Clinical Outcomes ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Knee Instability ◽  
Return To Play ◽  
Revision Acl Reconstruction ◽  
Pubmed Database ◽  
Anterior Cruciate ◽  
Primary Acl Reconstruction

Context: Reconstruction of the anterior cruciate ligament (ACL) is one of the most common surgical procedures, with more than 200,000 ACL tears occurring annually. Although primary ACL reconstruction is a successful operation, success rates still range from 75% to 97%. Consequently, several thousand revision ACL reconstructions are performed annually and are unfortunately associated with inferior clinical outcomes when compared with primary reconstructions. Evidence Acquisition: Data were obtained from peer-reviewed literature through a search of the PubMed database (1988-2013) as well as from textbook chapters and surgical technique papers. Study Design: Clinical review. Level of Evidence: Level 4. Results: The clinical outcomes after revision ACL reconstruction are largely based on level IV case series. Much of the existing literature is heterogenous with regard to patient populations, primary and revision surgical techniques, concomitant ligamentous injuries, and additional procedures performed at the time of the revision, which limits generalizability. Nevertheless, there is a general consensus that the outcomes for revision ACL reconstruction are inferior to primary reconstruction. Conclusion: Excellent results can be achieved with regard to graft stability, return to play, and functional knee instability but are generally inferior to primary ACL reconstruction. A staged approach with autograft reconstruction is recommended in any circumstance in which a single-stage approach results in suboptimal graft selection, tunnel position, graft fixation, or biological milieu for tendon-bone healing. Strength-of-Recommendation Taxonomy (SORT): Good results may still be achieved with regard to graft stability, return to play, and functional knee instability, but results are generally inferior to primary ACL reconstruction: Level B.

scholarly journals Performance After Anterior Cruciate Ligament Reconstruction in National Basketball Association Players

2021 ◽  
Vol 9 (2) ◽  
pp. 232596712098164
Author(s):  
Steven F. DeFroda ◽  
Devan D. Patel ◽  
John Milner ◽  
Daniel S. Yang ◽  
Brett D. Owens
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Odds Ratio ◽  
Cruciate Ligament ◽  
Case Series ◽  
National Basketball Association ◽  
High Rate ◽  
Return To Play ◽  
Lower Percentage ◽  
Anterior Cruciate

Background: Anterior cruciate ligament (ACL) injury in National Basketball Association (NBA) players can have a significant impact on player longevity and performance. Current literature reports a high rate of return to play, but there are limited data on performance after ACL reconstruction (ACLR). Purpose/Hypothesis: To determine return to play and player performance in the first and second seasons after ACLR in NBA players. We hypothesized that players would return at a high rate. However, we also hypothesized that performance in the first season after ACLR would be worse as compared with the preinjury performance, with a return to baseline by postoperative year 2. Study Design: Case series; Level of evidence, 4. Methods: An online database of NBA athlete injuries between 2010 and 2019 was queried using the term ACL reconstruction. For the included players, the following data were recorded: name; age at injury; position; height, weight, and body mass index; handedness; NBA experience; dates of injury, surgery, and return; knee affected; and postoperative seasons played. Regular season statistics for 1 preinjury season and 2 postoperative seasons were compiled and included games started and played, minutes played, and player efficiency rating. Kaplan-Meier survivorship plots were computed for athlete return-to-play and retirement endpoints. Results: A total of 26 athletes underwent ACLR; of these, 84% (95% CI, 63.9%-95.5%) returned to play at a mean 372.5 days (95% CI, 323.5-421.5 days) after surgery. Career length after injury was a mean of 3.36 seasons (95% CI, 2.27-4.45 seasons). Factors that contributed to an increased probability of return to play included younger age at injury (odds ratio, 0.71 [95% CI, 0.47-0.92]; P = .0337) and fewer years of experience in the NBA before injury (odds ratio, 0.70 [95% CI, 0.45-0.93]; P = .0335). Postoperatively, athletes played a significantly lower percentage of total games in the first season (48.4%; P = .0004) and second season (62.1%; P = .0067) as compared with the preinjury season (78.5%). Player efficiency rating in the first season was 19.3% less than that in the preinjury season ( P = .0056). Performance in the second postoperative season was not significantly different versus preinjury. Conclusion: NBA players have a high rate of RTP after ACLR. However, it may take longer than a single season for elite NBA athletes to return to their full preinjury performance. Younger players and those with less NBA experience returned at higher rates.

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.

scholarly journals Vancomycin presoaking of hamstring grafts removes the risk of infection in primary anterior cruciate ligament reconstruction

2018 ◽  
Vol 6 (12_suppl5) ◽  
pp. 2325967118S0018
Author(s):  
Francisco Figueroa ◽  
David Figueroa ◽  
Rafael Calvo ◽  
Alex Vaisman ◽  
Mario López ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Septic Arthritis ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Hamstring Autograft ◽  
Exact Test ◽  
Previous Period ◽  
Anterior Cruciate ◽  
Primary Acl Reconstruction ◽  
Hamstring Grafts

Background: Several strategies have been studied to decrease the rate of infection after hamstring autograft anterior cruciate ligament (ACL) reconstruction. Our group started presoaking grafts with Vancomycin in November 2015 to decrease this risk. Purpose: The objective of the study is to compare the success of this protocol against the immediate previous period in which we did not use the protocol. Study design: Retrospective cohort. Level III. Methods: Consecutive periods were studied: April 2013-October 2015 (pre Vancomycin protocol) and November 2015- May 2018 (Vancomycin protocol). All patients that underwent a hamstring autograft primary ACL reconstruction during the periods studied were included. The final outcome was the presence of postoperative septic arthritis in both groups. Diagnosis of septic arthritis was made using the clinical picture plus cytological analysis of a joint aspiration (cell count > 50.000/uL + > 90% neutrophils) Statistical analysis was made using the Fisher’s exact test. Significance was set in p < 0.05. Results: 490 patients were included in the study, 230 in the pre Vancomycin protocol an 260 in the Vancomycin protocol. 4 postoperative septic arthritis were noted in the pre Vancomycin protocol (1.7%) while no septic arthritis was noted in the post Vancomycin protocol patients during the period studied. (p < 0.05) The 4 postoperative infections were presented at an average 21.7 days (range 16-25). Staphylococcus epidermidis was isolated in 2 of the cases, and in the other 2 no organism was isolated. Conclusion: Vancomycin presoaking of hamstring autografts in primary ACL reconstruction eliminated the risk of postoperative septic arthritis during the studied period compared to the immediate previous period, where no Vancomycin presoaking was used.

Fifteen-Year Audit of Anterior Cruciate Ligament Reconstructions in the Australian Football League From 1999 to 2013: Return to Play and Subsequent ACL Injury

2018 ◽  
Vol 46 (14) ◽  
pp. 3353-3360 ◽  
Author(s):  
Courtney C.H. Lai ◽  
Julian A. Feller ◽  
Kate E. Webster
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Risk Ratio ◽  
Cruciate Ligament ◽  
Acl Injury ◽  
Return To Play ◽  
Rates Of Return ◽  
Australian Football League ◽  
Australian Football ◽  
Anterior Cruciate

Background: Anterior cruciate ligament (ACL) injury has been a major cause of missed game time among Australian Football League (AFL) players. Return to play after ACL reconstruction is not always achieved, even among elite athletes. The rate of subsequent ACL injury in the AFL from 1990 to 2000 was high as compared with that of other elite sports. Purpose: To determine the rates of return to play and subsequent ACL injury after ACL reconstruction among AFL players from 1999 to 2013 and to explore factors associated with differing rates of return to play and subsequent ACL injury. Study Design: Case series; Level of evidence, 4. Methods: A total of 158 AFL players who underwent ACL reconstruction were identified from a prospectively maintained registry of AFL player injuries. Further data were gathered from official playing statistics, surgical records, and structured phone interviews. Results: The rate of return to play after an initial ACL injury was 77% (121 of 158 players). Greater preinjury playing experience and earlier selection in the AFL draft were associated with higher rates of return to play. The rate of subsequent ACL injury to either knee was 30% (48 of 158 players) and was especially high among players aged <21 years (23 of 46 players, 50%). After subsequent ACL injury, 34 of 48 players (71%) returned to play. In primary ACL reconstruction, the use of Ligament Augmentation and Reconstruction System grafts resulted in a faster return to play ( P = .001) but had a higher risk of subsequent revision reconstruction (risk ratio = 2.8, P = .048). Family history of ACL injury was associated with an increased risk of subsequent contralateral ACL injury (risk ratio = 3.8, P = .002). Conclusion: Most AFL players who underwent ACL reconstruction returned to play at least 1 AFL match. The high rate of subsequent ACL injury among AFL players demonstrates the highly demanding nature of Australian football, particularly at the elite level. The risk factors for subsequent ACL injury should be considered carefully when treatment and rehabilitation decisions are made for these high-demand athletes.

Playing Performance After Anterior Cruciate Ligament Reconstruction Among Australian Football League Players From 1999 to 2013

2019 ◽  
Vol 47 (7) ◽  
pp. 1550-1556
Author(s):  
Courtney C.H. Lai ◽  
Julian A. Feller ◽  
Kate E. Webster
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Odds Ratio ◽  
Cruciate Ligament ◽  
Acl Injury ◽  
Return To Play ◽  
Average Level ◽  
Australian Football League ◽  
Australian Football ◽  
Anterior Cruciate

Background: Achieving preinjury levels of athletic performance has been challenging for elite athletes after anterior cruciate ligament (ACL) reconstruction. Although a recent study found that 77% of Australian Football League (AFL) players who underwent ACL reconstruction from 1999 to 2013 returned to play at the highest level, the study did not indicate how consistently or well they were able to play. Purpose: To identify the number of AFL players who returned to play consistently over 2 seasons after ACL reconstruction, compare their playing performance in these seasons with preinjury performance, and evaluate factors associated with returning to preinjury levels of performance. Study Design: Case series; Level of evidence, 4. Methods: Analysis included 104 AFL players who underwent ACL reconstruction between 1999 and 2013. All had played at least 10 AFL matches in 1 season before ACL injury. Ranking points, as devised by AFL statisticians, were used to measure individual playing performance. Results: Of the 104 players who played at least 10 matches in 1 season before ACL injury, 53 (51%) returned to play at least 10 matches in 2 seasons after surgery. Of these 53 players, 36 (68%) returned to their preinjury levels of performance. The 17 remaining players who did not return to their preinjury performance still performed comparably to the AFL average level after surgery. Players <25 years old (odds ratio = 2.9, P = .01) or <90 kg (odds ratio = 2.7, P = .03) had greater odds of returning to their preinjury levels of performance. Conclusion: Returning to play on a consistent basis was a substantial challenge for AFL players after ACL reconstruction. However, among players who did return to play consistently over 2 seasons, their postsurgery average performance was comparable with the AFL average level of performance, and two-thirds returned to their preinjury levels of performance. Younger and lighter players were more likely to return to their preinjury levels of performance, possibly given the nature of AFL club playing list management decisions.

Incidence and Risk Factors of Subsequent Meniscal Surgery After Successful Anterior Cruciate Ligament Reconstruction: A Retrospective Study With a Minimum 2-Year Follow-up

2020 ◽  
Vol 48 (14) ◽  
pp. 3525-3533
Author(s):  
Yuka Kimura ◽  
Eiji Sasaki ◽  
Yuji Yamamoto ◽  
Shizuka Sasaki ◽  
Eiichi Tsuda ◽  
...  
Keyword(s):  
Risk Factors ◽  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Anterior Laxity ◽  
Meniscal Surgery ◽  
Anterior Cruciate ◽  
Femoral Tunnel Drilling ◽  
Primary Acl Reconstruction

Background: One of the goals of anterior cruciate ligament (ACL) reconstruction is a meniscal protective effect on the knee. Despite the advancement of ACL reconstruction techniques, subsequent meniscal tears after ACL reconstruction remain a problem, and the risk factors for recurring lesions are still unclear. Purpose: To investigate the incidence of subsequent meniscal surgery after primary ACL reconstruction without revision ACL surgery and to determine the risk factors associated with this reoperation. Study Design: Case series; Level of evidence, 4. Methods: Overall, 518 patients who underwent primary ACL reconstruction between 2004 and 2012 at one instution participated in this study. Data on body mass index, graft type and femoral tunnel-drilling technique of ACL reconstruction, and location and type of meniscal injury and its treatment at ACL reconstruction were collected from medical records. Clinical outcomes were investigated, including side-to-side difference of anterior laxity, pivot-shift grade, and subsequent meniscal surgery without ACL insufficiency (at minimum 2-year follow-up). Results: The prevalence of tears to the medial meniscus (MM) at the primary ACL reconstruction was 43.6% (226/518), 140 of which were repaired; on the contrary, tears of the lateral meniscus (LM) had a prevalence of 55.8% (289/518), 42 of which were repaired. At a mean 30.3 months (range, 8-124 months) after ACL reconstruction, 20 patients (3.9%; 14 MM tears, 3 LM tears, 3 MM + LM tears) required meniscal surgery without ACL reinjury or recurrence of instability. Of these, 14 MMs and 3 LMs had been repaired at primary ACL reconstruction. The failure rates of repaired MM and LM were 10.0% (14/140) and 7.1% (3/42), respectively. The failure rate of MM repair using the all-inside technique (6/36) was significantly higher compared with no treatment, inside-out repair, or partial resection ( P = .045). In multiple regression analysis, the presence of MM injury at the time of ACL reconstruction (odds ratio [OR], 7.81; P = .003), the side-to-side difference of postoperative anterior tibial translation (OR, 1.91; P = .032), and follow-up period after ACL reconstruction (OR, 1.02; P = .003) were risk factors of subsequent meniscal surgery after ACL reconstruction. Conclusion: Incidence of subsequent meniscal surgery after successful ACL reconstruction was <5%. Presence of MM tear at the time of ACL reconsturuction, small amount of increased anterior laxity, and long-term period after ACL reconstruction were predictive of subsequent meniscal surgery.

scholarly journals Impact of Anterior Cruciate Ligament Reconstruction on NCAA FBS Football Players: Return to Play and Performance Vary by Position

2019 ◽  
Vol 7 (4) ◽  
pp. 232596711984105 ◽  
Author(s):  
Patrick Martin Wise ◽  
Robert A. Gallo
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
National Collegiate Athletic Association ◽  
Functional Performance ◽  
Cruciate Ligament ◽  
Return To Play ◽  
Football Players ◽  
Significant Performance ◽  
Anterior Cruciate ◽  
The Impact

Background: Anterior cruciate ligament (ACL) injuries are devastating for college football players. Although the change in functional performance of National Collegiate Athletic Association (NCAA) football players after reconstruction has been shown to be negligible, studies have failed to analyze the statistical performance of these players upon their return. Purpose/Hypothesis: The purpose of this study was to quantify the impact of ACL reconstruction on the statistical performance of collegiate football players. We hypothesized that statistical performance would vary by position and that running backs, wide receivers, and defensive backs, compared with preinjury and controls, would experience the largest decline in performance after returning from ACL reconstruction. Study Design: Descriptive epidemiology study. Methods: NCAA Football Bowl Subdivision (FBS) football players who experienced ACL tears between the years 2010 and 2015 were identified. The rates of return to play after surgery were determined for each position. Preinjury and postoperative performance statistics of each running back, receiver, defensive lineman, linebacker, and defensive back who met inclusion criteria were compared. A t-test analysis was used to compare the performance changes experienced by these players versus the performance changes of matched controls. Results: A total of 349 players were identified. Only 63.64% of eligible offensive linemen returned to play. Upon return, running backs experienced significant performance decreases compared with controls in carries (mean ± SD, –2.4 ± 2.7 vs 2.8 ± 1.6; P = .003), yards (–12.3 ± 15.5 vs 13.8 ± 7.8; P = .006), and receptions (–0.22 ± 0.32 vs 0.32 ± 0.23; P = .011) per game. Receivers displayed significant performance decreases compared with controls in number of touchdowns (–0.019 ± 0.110 vs 0.18 ± 0.06; P = .004), receptions (–0.11 ± 0.79 vs 1.2 ± 0.4; P = .004), and yards (–3.2 ± 10.6 vs 18.6 ± 5.4; P = .0009) per game. Linebackers demonstrated less improvement than controls in tackles for loss (0.007 ± 0.115 vs 0.31 ± 0.11; P = .0003) and sacks (0.001 ± 0.061 vs 0.10 ± 0.06; P = .026). Conclusion: Although offensive linemen were the least likely to return to play, running backs and receivers returned to play at a lower level of performance. The performance of defensive players was less affected by ACL reconstruction.

scholarly journals EVALUATION OF THE UTILITY OF THE ANTERIOR CRUCIATE LIGAMENT RETURN TO SPORT AFTER INJURY (ACL-RSI) SCALE WITHIN PEDIATRIC ATHLETES

2019 ◽  
Vol 7 (3_suppl) ◽  
pp. 2325967119S0003
Author(s):  
Elliot Greenberg ◽  
Miranda Dabbous ◽  
Anne Leung ◽  
Gabriella Marinaccio ◽  
Benjamin Ruley ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Pediatric Population ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
The United States ◽  
Return To Play ◽  
Return To Sports ◽  
Youth Athletes ◽  
The Mean ◽  
Anterior Cruciate

Background: The incidence of anterior cruciate ligament (ACL) injury and surgical reconstruction in youth athletes is increasing. In the United States, most athletes elect to undergo ACL reconstruction (ACLR), with the goal of returning to their previous level of athletic performance. Although surgery and rehabilitation address the underlying impairments in knee stability and function, recent literature indicates psychological or emotional factors, such as fear or confidence, may be contributing factors limiting successful return to play. The Anterior Cruciate Ligament Return to Sport after Injury (ACL-RSI) is a 12-item scale designed to assess an athlete’s psychological readiness to return to sports across three separate domains (emotions, confidence in performance and risk appraisal). In adults, the ACL-RSI is reliable and valid, and several studies have documented that athletes with higher scores are more likely to successfully return to their pre-injury level of sports participation. The predictive abilities of this scale, have led many experts to advocate for the ACL-RSI to be used as part of rehabilitation guidelines, in order to identify those athletes that may benefit from a modified course of post-operative rehabilitation or additional emotional or psychological support. Although the information from the ACL-RSI is valuable in adults, the utility of this scale has never been explored within the pediatric population. Thus, the purpose of this study is to evaluate the utility of the ACL-RSI within the pediatric population and establish normative values among healthy children. Hypothesis: As all of these subjects were currently healthy, we hypothesized that mean scores should demonstrate a positive skew towards higher levels of confidence (ceiling effect) with values of 80-100 on each question. Methods: A group of 84 healthy, youth athletes between the ages of 8-14, completed the ACL-RSI. All subjects were currently involved in competitive sports at the time of participation. The athletes were instructed to complete the 12-item ACL-RSI questionnaire and were able to seek assistance from parents as necessary. Each item is scored on a scale ranging from 0-100 and a total score is calculated from summing all responses and expressing them a percentage of 100%. Higher scores indicate a greater degree of athletic confidence or more positive psychological response to injury. Mean and variability measures for each question and total score were calculated and compared to existing literature. Results: A total of 83 subjects (mean age 11.1 ± 1.2) completed the questionnaire in full. There were slightly more females (n=46, 54.8%) than males. The majority of participants were White (70%), African American (13%) or more than one race (10%). The most frequent primary sport was soccer (38%), followed by baseball (27%) and basketball (26%). The mean ACL-RSI score for the entire sample was 79.9 (SD 14.1). Individual question analysis revealed lower than expected mean scores (<80%) with large standard deviations for 7 out of 12 questions. (Table 1) With the exception of only question #1 and #12, responses demonstrated such large variability that both the maximum and minimum (0-100) scores were selected, indicating both ceiling and floor effects. (Table 1) Conclusions/Significance: The mean ACL-RSI score (79.9) within this group of uninjured pediatric athletes was similar to previous values for post-ACLR adults that successfully return to sports. However, it was surprising that the mean score wasn’t higher, as this was a healthy population of un-injured youth athletes, and we hypothesized that our data would demonstrate a positive skew towards the upper range of this scale. Response ranges including 0 (indicating either high fear or severe lack of confidence) within nearly all questions was unexpected. Additionally, there were particularly low mean scores and high variability within 7 of the 12 questions. All of these factors raise the suspicion that children may not fully comprehend the material or have difficulty interpreting the response system of the ACL-RSI and thus calls into question the validity of this scale in youth athletes. Similar to other research efforts that have modified adult outcome scales to be utilized within the pediatric population, our results support further exploration of the utility of the ACL-RSI within pediatric athletes and may possibly suggest that a pediatric specific version should be created. [Table: see text]

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