4,778 results match your criteria Quadriceps Injury

Acute patellar tendon rupture with tibial tubercle avulsion repair using suture anchors: Tiny avulsed fragment which affects the strength of construction-a case report.

Int J Surg Case Rep 2022 Jun 10;96:107283. Epub 2022 Jun 10.

Department of Orthopaedics and Traumatology, dr. Cipto Mangunkusumo General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.

Introduction And Importance: Patellar tendon is one of the most important components of the knee extensor mechanism, which consisted of quadriceps femoris muscle, quadriceps tendon, patellar bone and patellar tendon. The total disruption of patellar tendon will lead to disability and significant morbidity of the patient, or even worse, the patient is disabled to walk. The incidence of patellar tendon rupture is uncommon and most commonly found in the third to fourth decade of life. Read More

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Significantly Delayed Medium-Latency Response of the Stretch Reflex in Delayed-Onset Muscle Soreness of the Quadriceps Femoris Muscles Is Indicative of Sensory Neuronal Microdamage.

J Funct Morphol Kinesiol 2022 May 27;7(2). Epub 2022 May 27.

Department of Health Sciences and Sport Medicine, Hungarian University of Sport Science, 1123 Budapest, Hungary.

Unaccustomed or strenuous eccentric exercise is known to cause delayed-onset muscle soreness. A recent hypothesis postulated that mechano-energetic microinjury of the primary afferent sensory neuron terminals in the muscle spindles, namely a transient Piezo2 channelopathy, could be the critical cause of delayed-onset muscle soreness in the form of a bi-phasic non-contact injury mechanism. This theory includes that this microlesion could delay the medium-latency response of the stretch reflex. Read More

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Management of Extensor Mechanism Disruption After Total Knee Arthroplasty.

Orthop Clin North Am 2022 Jul 27;53(3):277-286. Epub 2022 May 27.

Orthopaedic Institute at Northwell Health, 210 East 64th Street, 4th Floor, New York, NY 10065, USA.

Extensor mechanism disruptions following total knee arthroplasty are devastating injuries with complication rates following surgical intervention ranging from 25% to 45%. Primary repair with and without augmentation is appropriate in certain limited clinical settings. Allograft reconstruction has been a popular option; however, synthetic grafts are showing promise and good results. Read More

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Prevalence of muscle imbalance and its potential influence on injury among female acrobatic dancers.

BMJ Open Sport Exerc Med 2022 7;8(2):e001322. Epub 2022 Jun 7.

Sport and Movement Studies, Faculty of Health Sciences, University of Johannesburg, Auckland Park, South Africa.

Objective: The purpose of this study was to determine the prevalence of muscle imbalance among young adolescent acrobats (n=15) and if there was a potential link to injury.

Methods: Isokinetic strength of the lower extremity, isometric strength of the trunk, and flexibility of both the trunk and lower extremity were assessed. Pearson correlation (r) and χ correlation tests were performed on all explanatory variables. Read More

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Gait and Neuromuscular Changes Are Evident in Some Masters Club Level Runners 24-h After Interval Training Run.

Front Sports Act Living 2022 2;4:830278. Epub 2022 Jun 2.

Department of Sport Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom.

Purpose: To examine the time course of recovery for gait and neuromuscular function immediately after and 24-h post interval training. In addition, this study compared the impact of different statistical approaches on detecting changes.

Methods: Twenty (10F, 10M) healthy, recreational club runners performed a high-intensity interval training (HIIT) session consisting of six repetitions of 800 m. Read More

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Knee Extensor Mechanism Tendinopathy: Evaluation, Treatment, and Prevention.

Curr Sports Med Rep 2022 Jun 1;21(6):205-212. Epub 2022 Jun 1.

Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital, Charlestown, MA.

Abstract: Knee extensor mechanism tendinopathy, including patellar and quadriceps tendinopathy, is common among athletes and those involved in jumping sports. It is largely a clinical diagnosis that presents as anterior knee pain and stiffness with associated tenderness over the affected tendon. Imaging modalities, including ultrasound and/or magnetic resonance imaging, may be helpful with the diagnosis of difficult cases or in the planning of interventional procedures. Read More

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Suture tension band fixation vs. metallic tension band wiring for patella fractures - A biomechanical study on 19 human cadaveric patellae.

Injury 2022 May 26. Epub 2022 May 26.

Department of Orthopaedic Surgery and Traumatology, Hvidovre and Amager University Hospital, Kettegård Allé 30, Hvidovre DK-2650, Denmark.

Purpose: Traditional tension band fixation of patella fracture is associated with high reoperation rates. The purpose of the study was to assess strength of fixation in patella fractures treated with either a non-metallic all suture-based technique or traditional metallic tension band wiring.

Methods: Ten paired human cadaveric specimens were included. Read More

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ACL surgical trends evolve in the last five years for young European surgeons: results of the survey among the U45 ESSKA members.

Knee Surg Sports Traumatol Arthrosc 2022 Jun 14. Epub 2022 Jun 14.

Department of Orthopaedic Surgery, Centre Hospitalier de Luxembourg‑Clinique, D'Eich 78 Rue d'Eich, 1460, Luxembourg, Luxembourg.

Purpose: Although the outcomes of ACL reconstruction are generally satisfying, there are several patients who do not regain their pre-injury sporting level and suffer persistent symptoms. Orthopaedic practice has evolved significantly over the last five years to address these drawbacks. The aim of the present survey was to analyze the changes in the approach to ACL reconstruction among a population of young ESSKA surgeons dedicated to ACL surgery. Read More

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Short-Term Clinical Outcomes After Anterior Cruciate Ligament Reconstruction In Adolescents During The COVID-19 Pandemic.

Int J Sports Phys Ther 2022 1;17(4):585-592. Epub 2022 Jun 1.

Doctor of Physical Therapy Program, Tufts University School of Medicine.

Background/purpose: The COVID-19 pandemic has impacted adolescents across multiple areas of health. While many factors influence outcomes following anterior cruciate ligament reconstruction (ACLR), the impact of the COVID-19 pandemic on early patient outcomes after ACLR is currently unknown in an adolescent population. The purpose of this study was to determine if short-term clinical outcomes were different in adolescents after ACLR for those who underwent surgery pre-COVID versus during the COVID-19 pandemic timeframe. Read More

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A lower leg surrogate study to investigate the effect of quadriceps-hamstrings activation ratio on ACL tensile force.

J Sci Med Sport 2022 May 18. Epub 2022 May 18.

Department of Mechanical Engineering, TUM School of Engineering and Design, Technical University of Munich, Germany.

Objectives: Many studies have investigated the relationship between muscle activation and tensile force of the anterior cruciate ligament. These studies lacked a holistic representation of the muscle status. For instance, they were limited with respect to the peak muscle forces, number of muscles, and possible muscle activation patterns. Read More

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Are 6-Month Functional and Isokinetic Testing Measures Risk factors for Second Anterior Cruciate Ligament Injuries at Long term Follow-Up?

J Knee Surg 2022 Jun 10. Epub 2022 Jun 10.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.

Introduction:  Second anterior cruciate ligament (SACL) injuries are a devastating complication following return to sport (RTS). Appropriate and safe RTS criteria that reduce the risk of SACL injuries are needed. The goal of this study was to investigate the relationship between functional and isokinetic testing at 6 months following primary ACL reconstruction (ACLR) as risk factors for SACL injuries. Read More

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Efficacy of Electromyographic Biofeedback in Muscle Recovery after Meniscectomy in Soccer Players.

Sensors (Basel) 2022 May 26;22(11). Epub 2022 May 26.

Department of Social Psychology, Social Anthropology, Social Work and Social Services, University of Málaga, 29071 Málaga, Spain.

Electromyographic biofeedback (EMG-BF) is a therapeutic technique that has been used successfully in the rehabilitation of injuries. Although it has been applied to athletes, its use in this field is not very widespread. The objective of this study is to analyze its effectiveness in the recovery of electromyographic activity of the quadriceps after meniscectomy, evaluated through isometric contraction of the vastus lateralis. Read More

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A Systematic Review and Meta-Analysis of Strength Recovery Measured by Isokinetic Dynamometer Technology after Anterior Cruciate Ligament Reconstruction Using Quadriceps Tendon Autografts vs. Hamstring Tendon Autografts or Patellar Tendon Autografts.

Int J Environ Res Public Health 2022 06 1;19(11). Epub 2022 Jun 1.

Department of Physical Therapy, Health Science Faculty, University of Granada, Avda de la Ilustración 60, 18016 Granada, Spain.

Background: This systematic review and meta-analysis compared the isokinetic strength of the muscular knee joint between quadriceps tendon autografts (QTAs) and hamstring tendon autografts (HTAs) or patellar tendon autografts (PTAs) after anterior cruciate ligament (ACL) reconstruction by determining the isokinetic angular velocity and follow-up time points. The functional outcomes and knee stability at the same time points were also compared using isokinetic technology.

Methods: Two independent reviewers searched the Medline (via PubMed search engine), Scopus, Web of Science and Cochrane Library databases to include full text comparative studies that assessed isokinetic strength test following ACL reconstruction. Read More

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Is There an Association in Young Patients Between Quadriceps or Hamstring Strength After ACL Reconstruction and Graft Rupture?

Orthop J Sports Med 2022 Jun 3;10(6):23259671221101003. Epub 2022 Jun 3.

School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.

Background: Younger patients who sustain anterior cruciate ligament (ACL) ruptures are at high risk for reinjury after ACL reconstruction. Restoring muscle strength before return to sports (RTS) is regarded as an important factor in reducing the reinjury risk, and quadriceps and hamstring strength assessment is commonly included in RTS testing. However, it is not clear whether reduced strength is a risk factor for subsequent graft rupture in this patient population. Read More

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Increased Regular Season Soft Tissue Injury Rates in National Football League (NFL) Players May Be Associated With the Canceled 2020 NFL Preseason Due to COVID-19.

Cureus 2022 May 2;14(5):e24674. Epub 2022 May 2.

Department of Orthopedic Surgery, Northwell Health Plainview Hospital, Plainview, USA.

Introduction The purpose of this study is to evaluate the rates of regular season soft tissue injuries in National Football League (NFL) players during the 2020 season, which had a canceled preseason due to the COVID-19 pandemic. Methods This study retrospectively reviewed the injury rates of the 2020-2021 NFL regular season in comparison to the 2018-2019 NFL regular season using publicly available injury data. The focus of our analysis was comparing the following soft tissue injuries: hamstring, groin, calf, quadriceps, thigh, knee - anterior cruciate ligament (ACL), pectoral, and Achilles. Read More

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Bilateral asymmetry of hamstring to quadriceps isokinetic torque ratio in different angular velocities in professional basketball players.

Knee 2022 Jun 1;37:3-9. Epub 2022 Jun 1.

Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran.

Background: Bilateral symmetry evaluation in lower limb is used for injury prevention, and is an indicator of returning to post-injury activity. The aim of present study was to investigate the effect of different angular velocities on asymmetry of the hamstring-to-quadriceps strength ratio.

Method: Isokinetic concentric hamstring to quadriceps (H:Q) peak torque ratio of the 27 male and female professional basketball players was measured at seven angular velocities (60, 90, 120, 150, 180, 180, 240, 300 deg s) on both dominant and non-dominant legs with Biodex Isokinetic Dynamometer. Read More

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Regarding "No Difference in Complication Rates or Patient-Reported Outcomes Between Bone-Patellar Tendon-Bone and Quadriceps Tendon Autograft for Anterior Cruciate Ligament Reconstruction".

Joseph D Lamplot

Arthroscopy 2022 Jun;38(6):1758-1761

Assistant Professor of Orthopaedic Surgery, Department of Orthopaedic Surgery, Emory University, Flowery Branch, Georgia, U.S.A.

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Cross-sectional study on relationships between physical function and psychological readiness to return to sport after anterior cruciate ligament reconstruction.

BMC Sports Sci Med Rehabil 2022 Jun 1;14(1):97. Epub 2022 Jun 1.

Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.

Background: Information about specific factors of physical function that contribute to psychological readiness is needed to plan rehabilitation for a return to sports. The purpose of this study was to identify specific physical functions related to the psychological readiness of patients aiming to return to sports 6 months after reconstruction. We hypothesized that the knee strength is a factor related to the Anterior Cruciate Ligament-Return to Sport after Injury scale (ACL-RSI) cutoff score for a return to sports. Read More

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Risk Factors for Quadriceps Muscle Strain Injuries in Sport: A Systematic Review.

J Orthop Sports Phys Ther 2022 Jun;52(6):389-400

Objective: To identify risk factors for quadriceps muscle strain injury in sport.

Design: Risk factor systematic review.

Literature Search: A systematic search was conducted in the MEDLINECINAHL, Embase, AMED, AUSPORT, SPORTDiscus, PEDro, and Cochrane Library databases (from inception to September 2021). Read More

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Extensor mechanism ruptures.

EFORT Open Rev 2022 May 31;7(6):384-395. Epub 2022 May 31.

Department of Orthopedics & Traumatology, Halic University, Istanbul, Turkey.

Native patellar tendon injuries are seen in younger patients compared to quadriceps tendon ruptures. Up to a third of the patients may have local (antecedent tendinopathy and cortisone injections) or systemic risk factors (obesity, diabetes, hyperparathyroidism, chronic renal failure, fluoroquinolone or statin use) of injury, these are more frequent in bilateral disruptions. Complete extensor mechanism disruptions should be repaired surgically. Read More

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Bilateral impairments of quadriceps neuromuscular function occur early after anterior cruciate ligament injury.

Res Sports Med 2022 May 29:1-14. Epub 2022 May 29.

Department of Orthopaedics and Traumatology, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong SAR, China.

The study aimed to investigate the impairments in quadriceps neuromuscular function, including strength, rate of torque development (RTD) and activation failure (QAF) early after an ACL injury. A cross-sectional study was conducted. Thirty physically active patients with a primary ACL injury within three months, aged 18 to 40 years old, and who were scheduled for ACL reconstruction were included. Read More

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Comparison of the H:Q Ratio Between the Dominant and Nondominant Legs of Soccer Players: A Meta-Analysis.

Sports Health 2022 May 26:19417381221095096. Epub 2022 May 26.

Robert Kertzer Exercise Physiology Laboratory, Department of Kinesiology, University of New Hampshire, Durham, New Hampshire.

Context: Soccer players often have a dominant (D) leg, which could influence the relative strength between the quadriceps and hamstrings. The hamstring-to-quadriceps (H:Q) ratio can be assessed on a dynamometer at various velocities to provide information on injury risk.

Objective: To assess the concentric hamstrings and concentric quadriceps strength ratio (conventional H:Q ratio) assessed in D and nondominant (ND) legs at various speeds in male soccer players. Read More

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Outcomes After Repair of Quadriceps Tendon Rupture in Patients Aged 40 Years and Younger.

Orthop J Sports Med 2022 May 18;10(5):23259671221097107. Epub 2022 May 18.

Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.

Background: Injury to the quadriceps tendon is rare and most commonly occurs in middle-aged men. Few reports are available regarding outcomes after quadriceps tendon rupture in younger patients.

Purpose/hypothesis: To review the clinical outcomes of patients who underwent quadriceps tendon repair at age ≤40 years. Read More

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Handcycling with concurrent lower body low-frequency electromyostimulation significantly increases acute oxygen uptake: implications for rehabilitation and prevention.

PeerJ 2022 18;10:e13333. Epub 2022 May 18.

Department of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, Germany.

Background: Acute increases in exercise-induced oxygen uptake (V̇O) is crucial for aerobic training adaptations and depends on how much muscle mass is involved during exercising. Thus, handcycling is per se limited for higher maximal oxygen uptakes (V̇Omax) due to restricted muscle involvement. Handcycling with additional and simultaneous application of low-frequency electromyostimulation (EMS) to the lower extremities might be a promising stimulus to improve aerobic capacity in disabled and rehabilitative populations. Read More

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Disagreement in Pass Rates Between Strength and Performance Tests in Patients Recovering From Anterior Cruciate Ligament Reconstruction.

Am J Sports Med 2022 Jul 23;50(8):2111-2118. Epub 2022 May 23.

Department of Orthopaedics, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.

Background: Performance on strength and functional tests is often used to guide postoperative rehabilitation progress and return to activity decisions after anterior cruciate ligament reconstruction (ACLR). Clinicians may have difficulty in determining which criteria to follow if there is disagreement in performance outcomes among the tests.

Purpose/hypothesis: The purpose of this study was to compare pass rates between strength tests and single-leg hop (SLHOP) tests among men and women and between patients with lower and higher preinjury activity levels recovering from ACLR. Read More

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Quadriceps or patellar ligament reconstruction with artificial ligament after total knee replacement.

Acta Biomed 2022 03 10;92(S3):e2021534. Epub 2022 Mar 10.

U.O. Ortopedia e Traumatologia - ISS - San Marino.

Background And Aim Of The Work: Ruptures of the quadriceps or patellar tendon after TKA implantation are a fearful and disabling complication. Direct reconstructions highlighted various problems, such as the decrease in extensor force, failure, need for prolonged post-operative immobilization. So augmentation techniques have been proposed with autologous tendons, allografts, artificial ligaments. Read More

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[A prospective randomized controlled study on the effects of bicycle ergometer rehabilitation training on quadriceps and walking ability of patients with lower limb dysfunction caused by extensive burns].

Zhonghua Shao Shang Za Zhi 2022 May;38(5):447-453

Department of Burns, Tongren Hospital of Wuhan University&Wuhan Third Hospital, Wuhan 430060, China.

To explore the effects of bicycle ergometer rehabilitation training on quadriceps and walking ability of patients with lower limb dysfunction caused by extensive burns. A prospective randomized controlled study was conducted. A total of 40 patients with extensive burns who met the inclusion criteria and were admitted to Tongren Hospital of Wuhan University&Wuhan Third Hospital from December 2017 to December 2020 were selected. Read More

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Consequences of Patellar Tendinopathy on Isokinetic Knee Strength and Jumps in Professional Volleyball Players.

Sensors (Basel) 2022 May 9;22(9). Epub 2022 May 9.

Service de Médecine Physique et Réadaptation Locomotrice et Respiratoire, CHU Nantes, Nantes Université, 44093 Nantes, France.

Patellar tendinopathy (PT) in professional volleyball players can have an impact on their careers. We evaluated the impact of this pathology in this specific population in terms of isokinetic strength and jumping performances. Thirty-six professional male volleyball players (mean age: 24. Read More

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