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https://www.readbyqxmd.com/read/28332110/minimizing-injury-and-maximizing-return-to-play-lessons-from-engineered-ligaments
#1
REVIEW
Keith Baar
Musculoskeletal injuries account for more than 70% of time away from sports. One of the reasons for the high number of injuries and long return to play is that we have only a very basic understanding of how our training alters tendon and ligament (sinew) structure and function. Sinews are highly dense tissues that are difficult to characterize both in vivo and in vitro. Recently, engineered ligaments have been developed in vitro using cells from human anterior cruciate ligaments or hamstring tendons. These three-dimensional tissues can be grown in a laboratory, treated with agents thought to affect sinew physiology, and then mechanically tested to determine their function...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28327683/infra-patellar-branch-of-saphenous-nerve-injury-during-hamstring-graft%C3%A2-harvest-vertical-versus-oblique-incisions
#2
A Joshi, N Kayasth, S Shrestha, B R Kc
BACKGROUND: Autologous hamstring grafts are commonly used for anterior cruciate ligament reconstruction. The injury of infrapatellar branch of saphenous nerve is one of the concerns leading to various pattern of sensory loss in the operated leg. An oblique incision to harvest the graft has been reported to be better than the vertical one.The aim of this study was to compare the incidence, recovery of nerve injury and final outcome in patients with hamstring harvest of vertical or oblique incision...
September 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28322596/motor-imagery-during-action-observation-increases-eccentric-hamstring-force-an-acute-non-physical-intervention
#3
Matthew Scott, Stephen Taylor, Paul Chesterton, Stefan Vogt, Daniel Lloyd Eaves
PURPOSE: Rehabilitation professionals typically use motor imagery (MI) or action observation (AO) to increase physical strength for injury prevention and recovery. Here we compared hamstring force gains for MI during AO (AO + MI) against two pure MI training groups. MATERIALS AND METHODS: Over a 3-week intervention physically fit adults imagined Nordic hamstring exercises in both legs and synchronized this with a demonstration of the same action (AO + MI), or they purely imagined this action (pure MI), or imagined upper-limb actions (pure MI-control)...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28321428/high-grade-partial-and-retracted-2-cm-proximal-hamstring-ruptures-nonsurgical-treatment-revisited
#4
Jonathan R Piposar, Amrit V Vinod, Joshua R Olsen, Edward Lacerte, Suzanne L Miller
BACKGROUND: High-grade partial proximal hamstring tears and complete tears with retraction less than 2 cm are a subset of proximal hamstring injuries where, historically, treatment has been nonoperative. It is unknown how nonoperative treatment compares with operative treatment. HYPOTHESIS: The clinical and functional outcomes of nonoperative and operative treatment of partial/complete proximal hamstring tears were compared. We hypothesize that operative treatment of these tears leads to better clinical and functional results...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28314886/no-differences-in-subjective-knee-function-between-surgical-techniques-of-anterior-cruciate-ligament-reconstruction-at-2-year-follow-up-a-cohort-study-from-the-swedish-national-knee-ligament-register
#5
Eric Hamrin Senorski, David Sundemo, Christopher D Murawski, Eduard Alentorn-Geli, Volker Musahl, Freddie Fu, Neel Desai, Anders Stålman, Kristian Samuelsson
PURPOSE: The purpose of this study was to investigate how different techniques of single-bundle anterior cruciate ligament (ACL) reconstruction affect subjective knee function via the Knee injury and Osteoarthritis Outcome Score (KOOS) evaluation 2 years after surgery. It was hypothesized that the surgical techniques of single-bundle ACL reconstruction would result in equivalent results with respect to subjective knee function 2 years after surgery. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the 10-year period of 1 January 2005 through 31 December 2014...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28314091/changes-in-muscle-architecture-of-biceps-femoris-induced-by-eccentric-strength-training-with-nordic-hamstring-exercise
#6
Diego Alonso-Fernandez, Pedro Docampo-Blanco, Juan Martinez-Fernandez
Eccentric strength training alters muscle architecture, but it is also an important factor for the prevention of hamstring injuries. The purpose was to determine the architectural adaptations of the Biceps Femoris long head (BFlh) after eccentric strength training with Nordic Hamstring exercise (NHE), followed by a subsequent detraining period. The participants in this intervention (n = 23) completed a period of 13 weeks consisting of a first week of control and prior training, followed by 8 weeks of eccentric strength training with NHE, and concluding with a 4-week period of detraining...
March 17, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28299389/adolescents-and-female-patients-are-at-increased-risk-for-contralateral-anterior-cruciate-ligament-reconstruction-a-cohort-study-from-the-swedish-national-knee-ligament-register-based-on-17-682-patients
#7
Thorkell Snaebjörnsson, Eric Hamrin Senorski, David Sundemo, Eleonor Svantesson, Olof Westin, Volker Musahl, Eduard Alentorn-Geli, Kristian Samuelsson
PURPOSE: The impact of different surgical techniques in index ACL reconstruction for patients undergoing contralateral ACL reconstruction was investigated. METHODS: The study was based on data from the Swedish National Knee Ligament Register. Patients undergoing index ACL reconstruction and subsequent contralateral ACL reconstruction using hamstring graft under the study period were included. The following variables were evaluated: age at index surgery, gender, concomitant meniscal or cartilage injury registered at index injury, transportal femoral bone tunnel drilling and transtibial femoral bone tunnel drilling...
March 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28298067/incidence-of-second-anterior-cruciate-ligament-tears-1990-2000-and-associated-factors-by-geographic-locale
#8
Nathan D Schilaty, Nathaniel A Bates, Thomas L Sanders, Aaron J Krych, Michael J Stuart, Timothy E Hewett
BACKGROUND: Second anterior cruciate ligament (ACL) tears after reconstruction occur at a reported rate of 20% to 30%. This high frequency indicates that there may be factors that predispose an athlete to graft failure and ACL tears of the contralateral knee. PURPOSE: To determine the incidence of second ACL injuries in a geographic population-based cohort over a 10-year observation period. STUDY DESIGN: Descriptive epidemiological study. METHODS: International Classification of Diseases, 9th Revision (ICD-9) codes relevant to the diagnosis of an ACL tear and the procedure code for ACL reconstruction were searched across the Rochester Epidemiology Project, a multidisciplinary county database, between the years of 1990 and 2000...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28298052/allograft-augmentation-of-hamstring-autograft-for-younger-patients-undergoing-anterior-cruciate-ligament-reconstruction
#9
Cale A Jacobs, Jeremy M Burnham, Eric Makhni, Chaitu S Malempati, Eric Swart, Darren L Johnson
BACKGROUND: Younger patients and those with smaller hamstring autograft diameters have been shown to be at significantly greater risk of graft failure after anterior cruciate ligament (ACL) reconstruction. To date, there is no information in the literature about the clinical success and/or cost-effectiveness of increasing graft diameter by augmenting with semitendinosus allograft tissue for younger patients. HYPOTHESIS: Hybrid hamstring grafts are a cost-effective treatment option because of a reduced rate of graft failure...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28292768/managing-acute-hamstring-injuries-in-athletes
#10
Gustaaf Reurink
No abstract text is available yet for this article.
April 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28285012/two-stage-treatment-of-ischial-pressure-ulcers-in-spinal-cord-injury-patients-technique-and-outcomes-over-8-years
#11
Sumanas W Jordan, Mauricio De la Garza, Victor L Lewis
BACKGROUND: Despite newly introduced techniques, reconstruction of ischial pressure ulcers remains a difficult problem with high-reported failure rates. METHODS: A retrospective chart review was performed on all spinal cord injury patients who underwent ischial pressure ulcer reconstruction by the senior author (V.L.) between 2004 and 2012. The two-stage procedure consisted of debridement and bone biopsy, followed by bursectomy, partial ischiectomy, fascial release, and gluteus maximus and hamstring advancement flaps...
January 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28280975/the-effect-of-nordic-hamstring-strength-training-on-muscle-architecture-stiffness-and-strength
#12
Kayla D Seymore, Zachary J Domire, Paul DeVita, Patrick M Rider, Anthony S Kulas
PURPOSE: Hamstring strain injury is a frequent and serious injury in competitive and recreational sports. While Nordic hamstring (NH) eccentric strength training is an effective hamstring injury-prevention method, the protective mechanism of this exercise is not understood. Strength training increases muscle strength, but also alters muscle architecture and stiffness; all three factors may be associated with reducing muscle injuries. The purpose of this study was to examine the effects of NH eccentric strength training on hamstring muscle architecture, stiffness, and strength...
March 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28280908/a-prospective-evaluation-of-proximal-hamstring-tendon-avulsions-improved-functional-outcomes-following-surgical-repair
#13
William G Blakeney, Simon R Zilko, Steven J Edmonston, Natalie E Schupp, Peter T Annear
PURPOSE: Avulsion of the proximal hamstring tendons is an uncommon injury. To date, few studies have prospectively evaluated outcomes of surgical repair. The aim of the present study is to review the functional outcomes of surgical repair of proximal hamstring tendon avulsions. METHODS: This is a prospective series of 96 consecutive proximal hamstring surgical repairs in 94 patients, with a median age of 50 years and median follow-up of 33 months (range 12-58). Functional outcomes were assessed using the Perth Hamstring Assessment Tool (PHAT)-a validated scoring system for proximal hamstring injuries...
March 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28279852/effectiveness-of-surgical-and-non-surgical-management-of-crouch-gait-in-cerebral-palsy-a-systematic-review
#14
REVIEW
Scott A Galey, Zachary F Lerner, Thomas C Bulea, Seymour Zimbler, Diane L Damiano
BACKGROUND: Cerebral palsy (CP) is a prevalent group of neuromotor disorders caused by early injury to brain regions or pathways that control movement. Patients with CP exhibit a range of functional motor disabilities and pathologic gait patterns. Crouch gait, characterized by increased knee flexion throughout stance, is a common gait pattern in CP that increases energy costs of walking and contributes to ambulatory decline. Our aim was to perform the first systematic literature review on the effectiveness of interventions utilized to ameliorate crouch gait in CP...
February 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28278378/subsequent-injuries-are-more-common-than-injury-recurrences
#15
Caroline F Finch, Jill Cook, Breanne E Kunstler, Muhammad Akram, John Orchard
BACKGROUND: It is known that some people can, and do, sustain >1 injury over a playing season. However, there is currently little high-quality epidemiological evidence about the risk of, and relationships between, multiple and subsequent injuries. PURPOSE: To describe the subsequent injuries sustained by Australian Football League (AFL) players over 1 season, including their most common injury diagnoses. STUDY DESIGN: Cohort study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28277402/a-multifactorial-criteria-based-progressive-algorithm-for-hamstring-injury-treatment
#16
Jurdan Mendiguchia, Enrique Martinez-Ruiz, Pascal Edouard, Jean-Benoît Morin, Francisco Martinez-Martinez, Fernando Idoate, Alberto Mendez-Villanueva
INTRODUCTION: Given the prevalence of hamstring injuries in football, a rehabilitation program that effectively promotes muscle tissue repair and functional recovery is paramount to minimize re-injury risk and optimize player performance and availability. PURPOSE: To assess the concurrent effectiveness of administering an individualized and multifactorial criteria-based algorithm (RA) on hamstring injury rehabilitation in comparison to employing a general rehabilitation protocol (RP)...
March 8, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28273424/is-quadriceps-tendon-autograft-a-better-choice-than-hamstring-autograft-for-anterior-cruciate-ligament-reconstruction
#17
Etienne Cavaignac, Benoit Coulin, Philippe Tscholl, Nik Nik Mohd Fatmy, Victoria Duthon, Jacques Menetrey
BACKGROUND: The quadriceps tendon (QT) autograft is known as an effective graft for anterior cruciate ligament (ACL) reconstruction and shows a similar functional outcome to the bone-patellar tendon-bone (BPTB) in randomized controlled trials, with a lesser incidence of complications. Up until now, only 2 studies have compared QT to hamstring tendon (HT) autograft. HYPOTHESIS: The functional outcomes of the QT technique are at least as good as those of the HT technique, with the same morbidity...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28267537/intra-and-interrater-reliability-of-three-different-mri-grading-and-classification-systems-after-acute-hamstring-injuries
#18
Arnlaug Wangensteen, Johannes L Tol, Frank W Roemer, Roald Bahr, H Paul Dijkstra, Michel D Crema, Abdulaziz Farooq, Ali Guermazi
OBJECTIVE: To assess and compare the intra- and interrater reliability of three different MRI grading and classification systems after acute hamstring injury. METHODS: Male athletes (n=40) with clinical diagnosis of acute hamstring injury and MRI ≤5days were selected from a prospective cohort. Two radiologists independently evaluated the MRIs using standardised scoring form including the modified Peetrons grading system, the Chan acute muscle strain injury classification and the British Athletics Muscle Injury Classification...
April 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28263670/proximal-neuromuscular-control-protects-against-hamstring-injuries-in-male-soccer-players
#19
Joke Schuermans, Lieven Danneels, Damien Van Tiggelen, Tanneke Palmans, Erik Witvrouw
BACKGROUND: With their unremittingly high incidence rate and detrimental functional repercussions, hamstring injuries remain a substantial problem in male soccer. Proximal neuromuscular control ("core stability") is considered to be of key importance in primary and secondary hamstring injury prevention, although scientific evidence and insights on the exact nature of the core-hamstring association are nonexistent at present. HYPOTHESIS: The muscle activation pattern throughout the running cycle would not differ between participants based on injury occurrence during follow-up...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28259848/calf-muscle-strain-injuries-in-sport-a-systematic-review-of-risk-factors-for-injury
#20
REVIEW
Brady Green, Tania Pizzari
OBJECTIVE: To systematically review the literature to identify risk factors for calf strain injury, and to direct future research into calf muscle injuries. DESIGN: Systematic review DATA SOURCES: Database searches conducted for Medline, CINAHL, EMBASE, AMED, AUSPORT, SportDiscus, PEDro and Cochrane Library. Manual reference checks, ahead of press searches, citation tracking. From inception to June 2016. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Studies evaluating and presenting data related to intrinsic or extrinsic risk factors for sustaining future calf injury...
March 4, 2017: British Journal of Sports Medicine
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