Effect of Preoperative Anterolateral Ligament Injury on Outcomes After Isolated Acute ACL Reconstruction With Hamstring Graft: A Prospective Study With Minimum 5-Year Follow-up.

BACKGROUND: The potential influence of a preoperative anterolateral ligament (ALL) lesion seen on magnetic resonance imaging (MRI) on the mid- and long-term surgical outcomes of anterior cruciate ligament (ACL) reconstruction is still controversial. PURPOSE: To evaluate the clinical outcomes and failure rate of isolated ACL reconstruction at a minimum 5-year follow-up in patients with and without ALL injury diagnosed preoperatively using MRI. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A prospective cohort of patients with acute ACL injury was divided into 2 groups based on the presence (ALL injury group) or absence (control group) of ALL injury on preoperative MRI. This is a longer-term follow-up study of a previously published study that had a minimum 2-year follow-up. Both groups underwent anatomic isolated reconstruction of the ACL. The Lysholm and subjective International Knee Documentation Committee scores, KT-1000 arthrometer and pivot-shift tests, reconstruction failure rate, incidence of contralateral ACL injury, presence of associated meniscal injury, and presence of knee hyperextension were evaluated. The evaluation at the 5-year follow-up was also compared with the same patient's evaluation at 2 years of follow-up. RESULTS: A total of 156 patients were evaluated. No significant differences were found between the groups in the preoperative evaluation. In the postoperative evaluation, patients in the ALL injury group had a higher reconstruction failure rate (14.3% vs 4.6% for the control group; P = .049) and worse clinical outcomes according to the Lysholm scores (85.0 ± 10.3 vs 92.3 ± 6.6; P < .00001). Although the pivot-shift test results were similar, anteroposterior translation using the KT-1000 arthrometer revealed worse results for the ALL injury group (2.8 ± 1.4 mm vs 1.9 ± 1.3 mm; P = .00018). Patients in the ALL injury group also had an increase in KT-1000 arthrometer values from 2 to 5 years (2.4 ± 1.6 vs 2.8 ± 1.4; P = .038). Patients in the control group had no differences in outcomes from 2 to 5 years of follow-up. CONCLUSION: Combined ACL and ALL injuries were associated with significantly less favorable outcomes than were isolated ACL injuries at a minimum follow-up of 5 years after isolated ACL reconstruction with hamstring autograft. Patients with concomitant ALL injury showed a higher failure rate and worse functional scores. Also, knee stability tended to slightly worsen from 2 to 5 years in cases of associated ALL injury.

The advantages of using tranexamic acid in anterior cruciate ligament reconstruction: a randomized controlled trial.

OBJECTIVE: The number of participants in sports or some form of recreation globally has led to an increase in the incidence of anterior cruciate ligament (ACL) injuries and the number of surgeries performed. Although it does not belong to risky surgical interventions, this operation is accompanied by complications that slow down post-operative rehabilitation. The objective is to analyze the effects of intra-articular (IA) injection of tranexamic acid (TXA) on the reduction of post-operative drained blood volume, pain intensity, and incidence of hemarthrosis after ACL reconstruction. METHODS: This prospective research included 124 patients undergoing ACL reconstruction surgery, randomly divided into two groups. The TXA group received IA TXA, whereas an equal amount of placebo was administered using the same route in the control group. RESULTS: The research has shown that IA injection of TXA effectively reduces post-operative blood loss (TXA group 71.29 ± 40.76 vs. control group 154.35 ± 81.45), reducing the intensity of post-operative pain (p < 0.001) and the incidence of hemarthrosis. CONCLUSION: The application of TXA significantly reduced post-operative bleeding and pain intensity, which accelerated the post-operative period.

OBJETIVO: El mayor número de participantes en deportes o alguna forma de recreación en todo el mundo ha llevado a un aumento en la incidencia de lesiones del ligamento cruzado anterior (LCA) y de las cirugías realizadas. Aunque no es una intervención quirúrgica de riesgo, esta operación va acompañada de complicaciones que ralentizan la rehabilitación posoperatoria. El objetivo es analizar los efectos de la inyección intraarticular de ácido tranexámico (TXA) sobre la reducción del volumen sanguíneo drenado posoperatorio, la intensidad del dolor y la incidencia de hemartrosis tras la reconstrucción del LCA. MÉTODO: Esta investigación prospectiva incluyó 124 pacientes sometidos a cirugía de reconstrucción del LCA, divididos aleatoriamente en dos grupos: uno recibió TXA intraarticular y otro (grupo de control) una cantidad igual de placebo por la misma vía. RESULTADOS: La investigación ha demostrado que la inyección intraarticular de TXA reduce efectivamente la pérdida de sangre posoperatoria (grupo TXA 71.29 ± 40.76 vs. grupo control 154.35 ± 81.45), reduciendo la intensidad del dolor posoperatorio (p < 0.001) y la incidencia de hemartrosis. CONCLUSIONES: La aplicación de TXA redujo significativamente el sangrado posoperatorio y la intensidad del dolor, lo que aceleró el posoperatorio.

Anterior cruciate ligament: A brief narrative review of main risk factors for injury and re-injury.

Anterior cruciate ligament (ACL) injury is one of the main injuries in professional and amateur athletes of different sports. Hundreds of thousands of ACL ruptures occurs annually, and only 55% of the athletes return to competitive level, with a 15 times higher chance of suffering a second injury. 60% of these injuries occur without physical contact and since they occur in the acute process, they can cause joint effusion, muscle weakness and functional incapacity. In the long term, they can contribute to a premature process of osteoarthritis. This narrative review is of particular interest for clinicians, practitioners, coaches and athletes to understand the main factors that contribute to an injury and/or re-injury and thus, to optimize their training to reduce and/or prevent the risk of injury and/or reinjury of ACL. Therefore, we aimed reports a narrative overview of the literature surrounding communication and explore through a theoretical review, the main risk factors for an ACL injury and/or re-injury, as well as bringing practical and correct methods of training applications. The lack of theoretical/practical knowledge on the part of rehabilitation and/or training professionals may impair the treatment of an athlete and/or student. High-quality research that can testing different training methods approaches in randomized controlled trials is needed.

[Revision surgery of anterior cruciate ligament plasty]. / Cirugía de revisión de plastía de ligamento cruzado anterior.

INTRODUCTION: anterior cruciate ligament injuries (ACL) continue increasing in frecuency in the general population and sportmen who practice soccer and american football where we can locate 53% of the total of cases, the annual incidence is 70 per 100,000 persons. The incidence of this injuries has being increasing in women probably of the increase of the participation in such sports. OBJECTIVE: to document the causes of anterior cruciate ligament (ACL) plasty failure, as well as the diagnosis, surgical technique, and postoperative care of a revision ACL plasty surgery. MATERIAL AND METHODS: a search for relevant information, original research articles, clinical trials, and reviews in indexed journals was performed. RESULTS: anterior cruciate ligament injuries continue to increase among the general population and athletes who play soccer and American soccer mainly, in this population group we found 53% of the total cases. The gold standard for treatment is arthroscopic reconstruction of the ligament. ACL reconstruction surgery has good results, with an estimated 75-90% success rate. Long-term failures of anterior cruciate ligament repair represent 5-25%. Among the factors associated with this failure are technical errors, traumatic antecedents, biological factors, among others. CONCLUSIONS: in ACL revision surgery good results can be achieved with respect to graft stability, return to play and functional stability of the knee, but the results are generally inferior to those of primary ACL reconstruction.

INTRODUCCIÓN: las lesiones del ligamento cruzado anterior (LCA) continúan en aumento entre la población general y deportistas que practican fútbol soccer y americano en donde se encuentra 53% del total de los casos; la incidencia anual es de 70 por cada 100,000 personas. La incidencia de estas lesiones ha ido en aumento en mujeres, probablemente por el incremento de la participación deportiva. OBJETIVO: documentar las causas de fracaso de plastía de ligamento cruzado anterior (LCA), así como el diagnóstico, técnica quirúrgica, cuidado postquirúrgico de una cirugía de revisión de plastía LCA. MATERIAL Y MÉTODOS: se ha realizado una búsqueda de información relevante, artículos de investigación originales, ensayos clínicos y revisiones en revistas indexadas. RESULTADOS: las lesiones del ligamento cruzado anterior continúan en aumento entre la población general y deportistas que practican futbol soccer y americano principalmente; en este grupo de la población encontramos 53% del total de los casos. El estándar de oro para su tratamiento es la reconstrucción del ligamento por vía artroscópica. La cirugía de reconstrucción de LCA presentan buenos resultados, se estima 75-90% de éxito. Los fracasos a largo plazo de la reparación de ligamento cruzado anterior representan de 5-25%. Dentro de los factores asociados a este fracaso encontramos errores técnicos, antecedentes traumáticos, factores biológicos, entre otros. CONCLUSIONES: en la cirugía de revisión de LCA se pueden lograr buenos resultados con respecto a la estabilidad del injerto, regreso al juego y estabilidad funcional de la rodilla, pero los resultados son generalmente inferiores a los de la reconstrucción primaria del LCA.

Are lower limb symmetry and self-reported symptoms associated with functional and neuromuscular outcomes in Brazilian adults with anterior cruciate ligament reconstruction? A cross-sectional study.

INTRODUCTION: After anterior cruciate ligament (ACL) reconstruction, determining readiness to return to participation is challenging. The understanding of which neuromuscular performance parameters are associated with limb symmetry and self-reported symptoms may be useful to improve monitoring the rehabilitation towards adequate decision-making to return. OBJECTIVES: To compare the ACL-operated and injury-free lower limbs regarding functional performance; and to investigate whether lower limb strength and functional performance are associated with self-reported symptoms and functional lower limb symmetry. METHOD: Thirty-four participants were included. Functional performance was assessed by using the Y-Balance test, Single-leg Hop, and Functional Movement Screen. An isokinetic dynamometer was used to evaluate the strength levels in open and closed kinetic chains. The functional lower limb symmetry was calculated considering the single-leg hop test results for each lower limb. RESULTS: There were no differences in dynamic balance (Y-Balance) between the operated and injury-free limbs. The operated limb presented a worst performance in the single-leg hop. Self-reported symptoms prevalence and lower limb symmetry were associated with knee extension strength and functional performance (Y-Balance). CONCLUSION: Individuals submitted to ACL-reconstruction presented worse functional performance in the operated limb compared to the injury-free limb. Both knee strength and dynamic balance were associated with limb symmetry and self-reported symptoms.

Finite element graft stress for anteromedial portal, transtibial, and hybrid transtibial femoral drillings under anterior translation and medial rotation: an exploratory study.

Stress concentration on the Anterior Cruciate Ligament Reconstruction (ACLr) for femoral drillings is crucial to understanding failures. Therefore, we described the graft stress for transtibial (TT), the anteromedial portal (AM), and hybrid transtibial (HTT) techniques during the anterior tibial translation and medial knee rotation in a finite element model. A healthy participant with a non-medical record of Anterior Cruciate Ligament rupture with regular sports practice underwent finite element analysis. We modeled TT, HTT, AM drillings, and the ACLr as hyperelastic isotropic material. The maximum Von Mises principal stresses and distributions were obtained from anterior tibial translation and medial rotation. During the anterior tibia translation, the HTT, TT, and AM drilling were 31.5 MPa, 34.6 Mpa, and 35.0 MPa, respectively. During the medial knee rotation, the AM, TT, and HTT drilling were 17.3 MPa, 20.3 Mpa, and 21.6 MPa, respectively. The stress was concentrated at the lateral aspect of ACLr,near the femoral tunnel for all techniques independent of the knee movement. Meanwhile, the AM tunnel concentrates the stress at the medial aspect of the ACLr body under medial rotation. The HTT better constrains the anterior tibia translation than AM and TT drillings, while AM does for medial knee rotation.

Surgical approach on combined chronic patellar tendon and bicruciate knee ligament injury.

A combined injury of the patellar tendon and both the anterior and posterior cruciate ligaments is disabling. It directly affects knee kinematics and biomechanics, presenting a considerable surgical challenge. In this complex and uncommon injury, decision-making should take into account the surgeon's experience and consider one- or two-stage surgery, tendon graft, graft fixation, and rehabilitation protocol. This manuscript discusses the surgical approach based on a comprehensive understanding of the patellar tendon and bicruciate biomechanics to guide which structures should be reconstructed first, especially when a two-stage procedure is chosen.

Rehabilitation and return-to-sport after anterior cruciate ligament injury and reconstruction: Exploring physical therapists' approaches in Argentina.

OBJECTIVES: To investigate the current clinical practice regarding pre- and post-surgical rehabilitation and return to sport (RTS) criteria following anterior cruciate ligament reconstruction (ACLR). DESIGN: Cross-sectional design. Online survey. SETTING: Survey platform. PARTICIPANTS: Argentinian physical therapists (PTs). OUTCOME MEASURES: The survey consisted of a combination of 39 open- and closed-ended questions, divided across 3 sections: (1) demographic and professional information, (2) clinical practice and rehabilitation strategies, and (3) return-to-running (RTR) and RTS. RESULTS: A total of 619 PTs completed the survey. Considerable variability was observed in preoperative rehabilitation, criteria used for rehabilitation progression and RTS decision-making criteria used by PTs. From the total surveyed, 336 (54.3%) carried out RTS assessment in their clinical practice. Most of PTs (53.3%) use visual estimation to assess knee range of motion. Only 20% of the PTs reported incorporating patient-reported outcome measures in their decision-making. From PTs who use strength assessment as a criterion of RTS (68.8%), 16.6% extrapolate this from jump tests and 15.3% use manual muscle testing. Less than the 50% of the PTs recommended nine months or more to allow patients to RTS. CONCLUSIONS: Current rehabilitation practices of Argentinian PTs following ACLR are largely variable and not aligned with current evidence and scientific guidelines. To achieve better rehabilitation and RTS practices better knowledge dissemination and implementation are required.

Comparative digital study using four methods of measurements of the tibial distal anatomical axes for determining the anatomical-mechanical angle in dogs with cranial cruciate ligament rupture.

OBJECTIVE: This study evaluates the amplitude of the anatomical-mechanical angle (AMA-angle) using 4 measuring methods of the tibial distal anatomical axes (DAA) previously described, comparing the literature results to determine if there are significant differences in patients with cranial cruciate ligament (CrCL) rupture. ANIMALS: This study was comprised of 30 tibiae (29 dogs), including 1 bilateral case. METHODS: A retrospective study was selected for this research. DAA measurements were performed on all surgically confirmed cases of canine CrCL rupture at Hospital Veterinário de Especialidades Bruselas from 2019 to 2022. Four different published methods (identified by surname of the corresponding author of the original publication) were compared. Tibial measurements were made using Veterinary Preoperative Orthopedic Planning Pro software (https://vpop-pro.com/) on mediolateral radiographic projections obtained from a digital database. RESULTS: The mean (range) in the DAA method conducted by Hulse obtained a AMA-angle of 5.4° (3.3 to 8.1°), 3.0° (0 to 5.8°) for Osmond et al, 3.2° (0.9 to 6°) for Miles, and 5.9° (2.4 to 8.8°) for Tudury. Differences among the means of the AMA-angle of the authors methods were found with a statistical difference (P < .05), except between Osmond and Miles. The mean AMA-angle with the Osmond method concurred with previous study results that determined the magnitude using the same measurement method of DAA in patients with CrCL rupture. CLINICAL RELEVANCE: The AMA-angle magnitude has been associated with higher sensitivity and specificity for predicting the development of CrCL rupture compared to other anatomical factors evaluated; therefore, future comparisons with different methods of measurement of the DAA between healthy and affected patients are recommended to determine whether any of them can increase the percentage value as a predictive factor for the occurrence of this condition.

Injury prevention in Brazilian women's football: Perceptions of physiotherapists and practices within elite clubs.

OBJECTIVES: To describe the perceptions of physiotherapists and the injury prevention practices implemented within elite women's football clubs in Brazil. DESIGN: Cross-sectional study. SETTING: Online survey. PARTICIPANTS: Head physiotherapists from 32 Brazilian elite clubs. MAIN OUTCOME MEASURES: Structured questionnaire. RESULTS: Physiotherapists identified ACL rupture as the primary target for prevention. The top-five perceived injury risk factors included 'early return to sport after injury', 'workload too high', 'previous injury', 'poor sleep/rest', and 'muscle strength/power deficit'. 'Adoption of return to sport criteria' was almost unanimously recognized as a very important preventive strategy. 'Poor infrastructure' was elected as the main barrier to implementing prevention programs. From a practical standpoint, at least two-third of clubs implemented multi-component exercise interventions for injury prevention. These interventions typically encompassed flexibility/mobility, balance/proprioception, lumbo-pelvic stability, and agility exercises, alongside exposure to sprinting. Strength training routines typically included traditional, functional, and eccentric exercises. Most teams also employed other prevention strategies, including adoption of return to sport criteria, internal workload monitoring, post-exercise recovery modalities, preseason risk factor screening, and application of rigid strapping tapes. CONCLUSIONS: This study provided unprecedented insights into the physiotherapists' perceptions and injury prevention practices implemented within elite women's football clubs.

Return to sports in female athletes after anterior cruciate ligament reconstruction: A systematic review and metanalysis.

IMPORTANCE: Return to sport (RTS) is considered an indicator of successful recovery after anterior cruciate ligament reconstruction (ACLR). In recent years, there has been major interest in documenting RTS following anterior cruciate ligament (ACL) injury. Despite women being at increased risk for ACL injuries and a global increase in women's participation in sports, research has not adequately focused on female athletes. OBJECTIVE: The purpose of this study is to conduct a systematic review and meta-analysis evaluating the RTS rate in female athletes after ACLR. We hypothesize that most of the female athletes can RTS. EVIDENCE REVIEW: A systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Electronic databases (PubMed, Embase, and Epistemonikos) were searched for articles reporting RTS rates and contextual data in female athletes. The following search terms were used: "anterior cruciate ligament reconstruction" OR "ACL reconstruction" AND "female" OR "women" AND "return to sports" OR "return to play" to retrieve all relevant articles published between 2003 and 2023. A quality assessment of the included studies was conducted. FINDINGS: Fifteen articles were included, reporting on 1456 female athletes participating in pivoting sports. The included studies comprised 9 cohorts, 1 case-control study, 2 case series, 2 descriptive epidemiology studies, and 1 observational study. Eight out of fifteen studies focused solely on elite-level athletes. The participants had a mean age of 23.13 years. Soccer was the most prevalent sport among the participants, accounting for 49.7% of all athletes included. All 15 studies reported an RTS rate, yielding a meta-proportion of 69% [95% CI, 58-80%] for RTS. Nine articles reported the average time to RTS, which was 10.8 months [95% CI, 8.7-12.8 months]. CONCLUSIONS: This systematic review demonstrates that a majority of female athletes (69 â€‹%) can RTS participation at an average of 10.8 months, however, the available information is insufficient, and quantitative data and reasons for not returning to play are lacking. Future studies should establish return-to-play criteria in this population and determine reasons for not returning to play. LEVEL OF EVIDENCE: III.

Assessment of knee instability in ACL-injured knees using weight-bearing computed tomography (WBCT): a novel protocol and preliminary results.

OBJECTIVE: To propose a protocol for assessing knee instability in ACL-injured knees using weight-bearing computed tomography (WBCT). MATERIALS AND METHODS: We enrolled five patients with unilateral chronic ACL tears referred for WBCT. Bilateral images were obtained in four positions: bilateral knee extension, bilateral knee flexion, single-leg stance with knee flexion and external rotation, and single-leg stance with knee flexion and internal rotation. The radiation dose, time for protocol acquisition, and patients' tolerance of the procedure were recorded. A blinded senior radiologist assessed image quality and measured the anterior tibial translation (ATT) and femorotibial rotation (FTR) angle in the ACL-deficient and contralateral healthy knee. RESULTS: All five patients were male, aged 23-30 years old. The protocol resulted in a 16.2 mGy radiation dose and a 15-min acquisition time. The procedure was well-tolerated, and patient positioning was uneventful, providing good-quality images. In all positions, the mean ATT and FTR were greater in ACL-deficient knees versus the healthy knee, with more pronounced differences observed in the bilateral knee flexion position. Mean lateral ATT in the flexion position was 9.1±2.8 cm in the ACL-injured knees versus 4.0±1.8 cm in non-injured knees, and mean FTR angle in the bilateral flexion position was 13.5°±7.7 and 8.6°±4.6 in the injured and non-injured knees, respectively. CONCLUSION: Our protocol quantitatively assesses knee instability with WBCT, measuring ATT and FTR in diverse knee positions. It employs reasonable radiation, is fast, well-tolerated, and yields high-quality images. Preliminary findings suggest ACL-deficient knees show elevated ATT and FTR, particularly in the 30° flexion position.

Use of electromyographic biofeedback in rehabilitation following anterior cruciate ligament reconstruction: a systematic review and meta-analysis.

BACKGROUND: Rehabilitation following anterior cruciate ligament (ACL) reconstruction surgery is essential to regain functionality and return to previous activity level. Electromyographic biofeedback may be an effective intervention for rehabilitation of patients following ACL surgery. OBJECTIVE: To synthesize the available evidence on the effect of electromyographic biofeedback in the treatment of quadriceps strength following ACL surgery. DESIGN: Systematic review with meta-analysis. DATA SOURCES: PubMed, EMBASE, CENTRAL and Epistemonikos were searched. ELIGIBILITY CRITERIA: Randomized clinical trials with patients undergoing ACL reconstruction surgery comparing biofeedback with a standard rehabilitation control group. DATA EXTRACTION AND DATA SYNTHESIS: Two authors selected articles and performed data extraction. The analysed outcomes were strength, function, pain, knee extension and balance. The risk of bias of individual studies was assessed using the Cochrane Risk of Bias Tool. Results were combined through random-effects meta-analysis, reporting mean differences. RESULTS: Eight articles were included in the qualitative analysis, and four articles were included in the quantitative analysis. The interventions lasted between 4 and 12 weeks. Three studies evaluated the effect of biofeedback on quadriceps strength; of these, two studies showed a significant difference in favour of the biofeedback group. In addition, biofeedback was found to improve knee extension [standardized mean difference - 1.3, 95% confidence interval (CI) - 1.74 to -0.86] and balance (one study). There was no significant difference in Lysholm score (mean difference -6.21, 95% CI -17.51 to 5.08; I2 =59%) or pain between the biofeedback group and the control group. CONCLUSION: Electromyographic biofeedback in knee rehabilitation could be useful following ACL reconstruction surgery. KEY MESSAGES: SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO (CRD42020193768).

Patients With More Than 6.5° of Knee Hyperextension are 14.6 Times More Likely to Have Anterior Cruciate Ligament Hamstring Graft Rupture and Worse Knee Stability and Functional Outcomes.

PURPOSE: To create a cut-off point for hyperextension that best discriminates retear and to verify whether this cut-off point can predict retear regardless of other characteristics after primary anterior cruciate ligament (ACL) reconstruction with hamstrings autograft. METHODS: A cohort of patients submitted to primary isolated ACL reconstruction with hamstrings autografts was retrospectively evaluated. Patients were stratified according to the degree of passive knee hyperextension measured in the normal contralateral knee. The following data were collected: patient age and sex, time from injury to surgery, knee hyperextension, KT-1000 and pivot-shift, associated meniscus injury, intra-articular graft size, follow-up time, graft failure, and postoperative Lysholm and subjective International Knee Documentation Committee scores. RESULTS: Data from 457 patients were evaluated. Median age was 31 years. Thirty-two (7.0%) presented with retear. There was a significant difference in hyperextension between patients with and without retear (P < .001), with the cut-off point established by the receiver operating characteristic curve from 6.5°. Patients with greater hyperextension had a statistically greater frequency of women, longer injury time, greater intra-articular graft diameter, greater postoperative KT-1000, and greater frequency of retear, whereas the subjective International Knee Documentation Committee and Lysholm scores were statistically lower in patients with greater hyperextension. Only hyperextension showed a statistically significant association with re-rupture (P < .001). The odds of retear in patients with hyperextension greater than 6.5 was 14.65 times the odds of patients with hyperextension less than 6.5. CONCLUSIONS: Patients with more than 6.5° of hyperextension are 14.6 times more likely to have a graft rupture than patients with lower hyperextension when submitted to ACL reconstruction with hamstring tendons. Also, they present worse knee stability by the KT-1000 test and worse functional outcomes. Therefore, patients with this degree of hyperextension should not have isolated reconstruction with hamstrings as their first choice. LEVEL OF EVIDENCE: Level III, retrospective comparative prognostic trial.

Variables Associated With Knee Valgus in Male Professional Soccer Players During a Single-Leg Vertical Landing Task.

Prior studies have explored the relationship between knee valgus and musculoskeletal variables to formulate injury prevention programs, primarily for females. Nonetheless, there is insufficient evidence pertaining to professional male soccer players. Here, the aim was to test the correlation of lateral trunk inclination, hip adduction, hip internal rotation, ankle dorsiflexion range of motion, and hip isometric strength with knee valgus during the single-leg vertical jump test. Twenty-four professional male soccer players performed a single-leg vertical hop test, hip strength assessments, and an ankle dorsiflexion range of motion test. A motion analysis system was employed for kinematic analysis. Maximal isometric hip strength and ankle dorsiflexion range of motion were tested using a handheld dynamometer and a digital inclinometer, respectively. The correlation of peak knee valgus with peak lateral trunk inclination was .43 during the landing phase (P = .04) and with peak hip internal rotation was -.68 (P < .001). For knee valgus angular displacement, only peak lateral trunk inclination presented a moderate positive correlation (r = .40, P = .05). This study showed that trunk and hip kinematics are associated with knee valgus, which could consequently lead to increased knee overload in male professional soccer players following a unilateral vertical landing test.

A study regarding the anterior cruciate ligament remnant: Differences in balance and postural control between remnant-preserving and remnant-non-preserving patients.

INTRODUCTION: The anterior cruciate ligament (ACL) is the most frequently injured ligament of the knee. However, quantitative studies on evaluate the postural control influence resulted from the ACL remnant preservation or not are scarce. The aim of this study is to evaluate the postural control of patients submitted to ACL reconstruction with and without preservation of the injured remnant in pre and postoperative periods. METHODS: Eighteen patients underwent ACL reconstruction and separated into 2 groups according to the preservation or not of the remnant: (I) submitted to ACL reconstruction with preservation of the remnant (10 patients); (II) submitted to ACL reconstruction without preservation of the remnant (8 patients). They were assessed using the Lysholm score and force plate, which evaluated the patient's postural stability for remnant and non-remnant preservation in ACL reconstruction surgery. RESULTS: Group I showed statistically significant subjective and objective improvements, both at 3 and 6 months. Additionally, improvement of the Lysholm test at 6 months in Group II was also statistically significant. Furthermore, the results of the Friedman test for the VCOP and VY variables of Group I, with support of the injured side in the force plate, showed a statistically significant difference both for pre and postoperative period at 3 months, compared to the 6-month postoperative period. The variables EAC and VX were statistically different for Group II, considering the preoperative period, 3 and 6 months postoperatively. CONCLUSION: Preserving the ACL remnant in patients with ACL injuries has a positive impact on postural stability during recovery.

Description of the Anterior Cruciate Ligament Reconstruction Technique with Mini-Lemaire Type Anterolateral Tenodesis through a Single Femoral Tunnel / Descrição de técnica de reconstrução do ligamento cruzado anterior com tenodese ântero-lateral tipo mini-Lemaire através de túnel único femoral

Abstract The anterior cruciate ligament (ACL) injury causes anteroposterior and rotational instability in the knee. Intra-articular reconstructions often fail to achieve satisfactory rotational control, leading to persistent complaints of instability and subjecting the neo-ligament to increased stress. Young patients with high athletic demands and grade 2 or 3 pivot-shift often have a higher risk of re-rupture after isolated ACL reconstruction. Over the years, various techniques have been developed to address such situations. Among the described techniques, one of the most commonly used is the modified or "mini-Lemaire" lateral extra-articular tenodesis. Biomechanical studies demonstrate the versatility of the technique due to its relatively isometric behavior in flexion angles of 0-60° when the graft is introduced deeply to the lateral collateral ligament. It offers the possibility of fixation at different anatomical positions on the lateral femoral condyle and at different degrees of flexion. The objective of this study is to describe an accessible, reproducible technique that relies on materials widely available in our environment.

Resumo A lesão do ligamento cruzado anterior (LCA) causa instabilidade anteroposterior e rotatória do joelho. Reconstruções isoladas intra-articulares muitas vezes não obtêm controle rotacional satisfatório, mantendo queixa de instabilidade e impondo ao neoligamento um maior estresse. Pacientes jovens, com alta demanda atlética e com pivot-shift grau 2 ou 3 apresentam um maior risco de rerrotura após reconstrução isolada do LCA. Ao longo dos anos diversas técnicas foram desenvolvidas na tentativa de mitigar tais situações. Dentre as técnicas descritas, uma das mais utilizadas é a Tenodese extra-articular Lateral tipo Lemaire modificada ou "mini-Lemaire". Estudos biomecânicos demonstram versatilidade da técnica devido a seu comportamento relativamente isométrico em graus de flexão de 0-60° quando a fita é introduzida profundamente ao ligamento colateral lateral, com possibilidade de fixação em diferentes posições anatômicas no côndilo femoral lateral e em diferentes graus de flexão. O objetivo do estudo é descrever uma técnica acessível, reprodutível e dependente de material amplamente disponível em nosso meio.

Functional Outcome of ACL Reconstruction Following Pre-reconstruction Rehabilitation vs. None Rehabilitation: A Systematic Review and Meta-analysis / Resultado funcional da reconstrução do LCA após habilitação pré-reconstrução vs. nenhuma pré-habilitação: Revisão sistemática e metanálise

Abstract Objective The aim of this study is to analyse the needs for pre-operative rehabilitation in patients undergoing ACL reconstruction. Methods The database reports were searched within 2018 to 2023, using PubMed, Cochrane library database, Medline, and other published trials. A statistical analysis was made from Review Manager. Results Pre-operative rehabilitation group shows significantly higher 2 years post-operative KOOS score in all subscore and the total mean of the score, pain (p < 0. 0001), symptoms (p < 0. 0001), ADL (p < 0. 0001), sports and recreations (p < 0. 0001), QoL (p < 0. 0001), and the total mean of the KOOS score (p < 0.0001). In contrary, pre-operative rehabilitation group shows insignificantly higher score on 3 months post-operative Lysholm score (p = 0.12). Conclusion This meta-analysis conclude pre-operative rehabilitation may provide better long-term post-operative outcome, however it may not provide much of a short-term outcome. It is recommended to add pre-operative rehabilitation as a guideline for ACL injury management to improve long-term outcome of patients with ACL injury undergoing ACL reconstruction procedure.

Resumo Objetivo O objetivo deste estudo é analisar as necessidades de pré-habilitação cirúrgica em pacientes submetidos à reconstrução do LCA. Métodos Os relatórios das bases de dados foram pesquisados entre 2018 e 2023, utilizando PubMed, base de dados da biblioteca Cochrane, Medline e outros artigos publicados. Uma análise estatística foi feita utilizando-se o Review Manager. Resultados O grupo de pré-habilitação cirúrgica apresenta pontuação KOOS pós-operatória de 2 anos significativamente maior em todos os subescores e na média total da pontuação, dor (p < 0,0001), sintomas (p < 0,0001), AVD (p < 0,0001). 0,0001), esportes e recreação (p < 0,0001), QV (p < 0,0001) e média total do escore KOOS (p < 0,0001). Em contrapartida, o grupo de habilitação pré-operatória apresenta pontuação insignificantemente maior no escore de Lysholm pós-operatório de 3 meses (p = 0,12). Conclusão Esta metanálise conclui que a pré-habilitação cirúrgica pode proporcionar melhores resultados pós-operatórios a longo prazo, no entanto, pode não proporcionar um resultado significativo a curto prazo. Recomenda-se adicionar a pré-habilitação cirúrgica como uma diretriz para o manejo da lesão do LCA para melhorar o resultado a longo prazo dos pacientes com lesão do LCA submetidos ao procedimento de reconstrução do LCA.

[Comparison of clinical outcomes of anterior cruciate ligament repair in the active military using allograft versus autograft, 2-year follow-up]. / Comparación de resultados clínicos de reparación de ligamento cruzado anterior en militares en el activo con uso de aloinjerto versus autoinjerto, seguimiento de 2 años.

INTRODUCTION: Due to the inherent activities of the active duty personnel of the Mexican Navy, ligament injuries are constant, particularly the anterior cruciate ligament of the knee (ACL). Currently, we have various techniques and resources for its repair. OBJECTIVE: identify the clinical results obtained in anterior cruciate ligament reconstruction in active military. MATERIAL AND METHODS: retrospective observational study comparing clinical outcomes of anterior cruciate ligament repair in active military with the use of allograft and autograft in 23 patients who met inclusion criteria for the surgical procedure from 2017 to 2019 at the Naval Medical Center. 23 patients (46 in total) were considered for each category of anterior cruciate ligament repair with autologous graft (contralateral patellar) and heterologous graft (cadaveric anterior cruciate ligament). With an average age of autologous (35.6 years), heterologous (35 years). BMI average: autologous (26.5), heterologous (26.5). Male gender in its entirety. The IKDC and Lysholm scales were applied to all patients for the evolution of subjective results of clinical improvement in a 2-year follow-up; where a significant difference (p = 0.0001) could be observed when comparing both anterior cruciate ligament reconstruction techniques. RESULTS: we included 46 patients who underwent anterior cruciate ligament reconstruction for indication of complete injury respectively by the Joint Surgery Service of the Naval Medical Center. A better level of clinical benefit was observed in patients with heterologous graft, both in evaluation by IKDC scale (median 95.52 ± 1.85) as in Lysholm scale (median 94.91 ± 1.62) compared to autologous grafts, IKDC (median 89.92 ± 2.55) and Lysholm (median 86.04 ± 5.58), with value of p = 0.0001 for both cases. CONCLUSIONS: The results our study suggests that a superiority of functionality is obtained as reported by patients in whom heterograft was used.

INTRODUCCIÓN: Debido a las actividades inherentes del personal del servicio activo de la Armada de México, son constantes las lesiones ligamentarias, en particular la lesión del ligamento cruzado anterior de la rodilla (LCA). Actualmente, contamos con diversas técnicas y recursos para su reparación. OBJETIVO: identificar los resultados clínicos obtenidos en reconstrucción de ligamento cruzado anterior en militares en el activo. MATERIAL Y MÉTODOS: estudio observacional retrospectivo donde se compararon los resultados clínicos de reparación de ligamento cruzado anterior en militares en el activo con uso de aloinjerto y autoinjerto en 46 pacientes que cumplieron criterios de inclusión para el procedimiento quirúrgico del año 2017 al 2019 en el Centro Médico Naval. Se incluyeron 23 pacientes para cada rubro de reparación de ligamento cruzado anterior con injerto autólogo (patelar contralateral) e injerto heterólogo (ligamento cruzado anterior cadavérico). A todos los pacientes se les aplicaron las escalas IKDC y Lysholm, para la evaluación de resultados subjetivos de mejoría clínica a un seguimiento de dos años. RESULTADOS: se reclutaron 46 pacientes que fueron sometidos a reconstrucción de ligamento cruzado anterior con aloinjerto o con autoinjerto. La media de edad por grupo fue: autólogo 35.6 años, heterólogo 35 años. Índice de masa corporal (IMC) promedio: autólogo 26.5, heterólogo 26.5. Sexo masculino en su totalidad. Se observó un mejor nivel de beneficio clínico en los pacientes con injerto heterólogo, tanto en evaluación por escala de IKDC (media 95.52 ± 1.85) como en escala de Lysholm (media 94.91 ± 1.62), en comparación con los injertos autólogos, IKDC (media 89.92 ± 2.55) y Lysholm (media 86.04 ± 5.58), con diferencia significativa (p = 0.0001) al comparar ambas técnicas de reconstrucción de ligamento cruzado anterior. CONCLUSIÓN: Los resultados de nuestro estudio sugieren que se obtiene una superioridad de funcionalidad referida por los pacientes en los que se utilizó heteroinjerto.