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proximal hamstring

Michael H Heggeness, Nora Strong, Paul H Wooley, Shang-You Yang
BACKGROUND: The clinical use of recombinant human bone morphogenic protein 2 (rhBMP-2, Infuse) has been associated with nerve-related complications including new-onset sciatica, and retrograde ejaculation. PURPOSE: To better understand the interaction of rhBMP-2 and peripheral nerves with the intent of making procedures safer. STUDY DESIGN/SETTING: Using a mouse model to examine the direct effect of diluted rhBMP-2 (Infuse) on murine sciatic nerves...
September 21, 2016: Spine Journal: Official Journal of the North American Spine Society
Peter Faunø, Lone Rømer, Torsten Nielsen, Martin Lind
BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) in skeletally immature patients can result in growth plate injury, which can cause growth disturbances. PURPOSE: To evaluate radiological tibial and femoral length and axis growth disturbances as well as clinical outcomes in skeletally immature ACLR patients treated with a transphyseal drilling technique. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: A total of 39 pediatric patients with ACL injury and open physes at time of surgery, as diagnosed clinically and with magnetic resonance imaging (MRI), were treated using transphyseal ACLR using hamstring graft...
September 2016: Orthopaedic Journal of Sports Medicine
D Figueroa, R Martínez, R Calvo, M Scheu, M Gallegos, A Vaisman, C Martínez, A González
INTRODUCTION: For successful anterior cruciate ligament (ACL) reconstruction, revascularisation and histological maturation are necessary, as their failure can cause graft rupture. PURPOSE: The purpose of this study was to describe differences in the histological maturation of early failed plasty (less than 12 months after surgery) and late failed plasty (more than 12 months after surgery) in patients with re-rupture after ACL reconstruction with hamstring tendons...
September 12, 2016: Revista Española de Cirugía Ortopédica y Traumatología
Cheng-Feng Lin, Wan-Chin Lee, Yi-An Chen, Bih-Jen Hsue
Fatigue in ballet dancers may lead to injury, particularly in the lower extremities. However, few studies have investigated the effects of fatigue on ballet dancers' performance and movement patterns. Thus, the current study examines the effect of fatigue on the balance, movement pattern, and muscle activities of the lower extremities in ballet dancers. Twenty healthy, female ballet dancers performed releve on demi-pointe before and after fatigue. The trajectory of the whole body movement and the muscle activities of the major lower extremity muscles were recorded continuously during task performance...
August 2016: Journal of Applied Biomechanics
Alberto Mendez-Villanueva, Luis Suarez-Arrones, Gil Rodas, Rodrigo Fernandez-Gonzalo, Per Tesch, Richard Linnehan, Richard Kreider, Valter Di Salvo
The present study examined site-specific hamstring muscles use with functional magnetic resonance imaging (MRI) in elite soccer players during strength training. Thirty-six players were randomized into four groups, each performing either Nordic hamstring, flywheel leg-curl, Russian belt or the hip-extension conic-pulley exercise. The transverse relaxation time (T2) shift from pre- to post-MRI were calculated for the biceps femoris long (BFl) and short (BFs) heads, semitendinosus (ST) and semimembranosus (SM) muscles at proximal, middle and distal areas of the muscle length...
2016: PloS One
S M Thompson, S Fung, D G Wood
PURPOSE: Injury to the proximal hamstring complex (PHC) is becoming more frequently diagnosed. Patients attending our tertiary referral centre demonstrated 'pathological changes' in the unaffected normal contralateral PHC on MRI. The prevalence of PHC pathology, however, has not been previously documented in the literature in asymptomatic subjects. It is the hypothesis of this study that the natural history of asymptomatic pathological change on MRI in the PHC is not clear. The aim is to quantify the natural history of PHC degeneration...
August 4, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Hidehito Tomita, Yoshiki Fukaya, Yukina Takagi, Asami Yokozawa
BACKGROUND: Although individuals with bilateral spastic cerebral palsy (BSCP) exhibit several deficits in anticipatory postural adjustments (APAs) while standing, effects of severity of motor disability on their APAs are unclear. AIMS: To determine whether individuals with BSCP exhibit severity-dependent deficits in APAs. METHODS AND PROCEDURES: Seven individuals with level II BSCP (BSCP-II group) and seven with level III BSCP (BSCP-III group) according to the Gross Motor Function Classification System and seven healthy controls lifted a load under two different load conditions...
October 2016: Research in Developmental Disabilities
William G Blakeney, Simon R Zilko, Steven J Edmonston, Natalie E Schupp, Peter T Annear
PURPOSE: The purpose of the present study was to validate a new scoring system for proximal hamstring injury-the Perth Hamstring Assessment Tool (PHAT). METHODS: This is a prospective series of 74 consecutive proximal hamstring surgical repairs in 72 patients, with a median age of 50.5 years (range 16-74). Patients completed the PHAT, SF12 Health Survey and Lower Extremity Functional Scale (LEFS). The scoring system was validated by calculating its internal consistency, reproducibility, reliability and sensitivity to change...
June 25, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Hal David Martin, Anthony Khoury, Ricardo Schröder, Ian James Palmer
Recent advances in understanding hip joint anatomy and biomechanics have contributed to improvement of diagnosis and treatment decisions for distal causes of deep gluteal syndrome (DGS). Ischiofemoral impingement and hamstrings syndrome are sources of posterior hip pain that can simulate symptoms of DGS. The combination of a comprehensive history and physical examination with imaging and ancillary testing are critical for diagnosis. Six key physical examination tests are described to differentiate distal versus proximal sources of extrapelvic posterior hip pain...
July 2016: Clinics in Sports Medicine
A Ruffilli, M De Fine, F Traina, F Pilla, D Fenga, C Faldini
PURPOSE: Infrapatellar branch of saphenous nerve injury is a common complication following hamstring graft harvest during anterior cruciate ligament reconstruction. The direction of skin incision performed at proximal tibial metaphysis may affect the rate of iatrogenic nerve damage. Aim of the present systematic review was to evaluate evidence that would substantiate the adoption of one incision over another for hamstring graft harvesting. METHODS: The available literature was systematically screened searching studies dealing with iatrogenic injury to the saphenous nerve after anterior cruciate ligament reconstruction using hamstring tendons...
June 23, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
G H Sandmann, D Hahn, M Amereller, S Siebenlist, A Schwirtz, A B Imhoff, P U Brucker
No abstract text is available yet for this article.
June 23, 2016: International Journal of Sports Medicine
Brent T Warner, Samuel G Moulton, Tyler R Cram, Robert F LaPrade
Proximal tibiofibular joint (PTFJ) instability can be easily missed or confused for other, more common lateral knee pathologies such as meniscal tears, fibular collateral ligament injury, biceps femoris pathology, or iliotibial band syndrome. Because of this confusion, some authors believe that PTFJ instability is more common than initially appreciated. Patients with PTFJ subluxation may have no history of inciting trauma or injury, and it is not uncommon for these patients to have bilateral symptoms and generalized ligamentous laxity...
February 2016: Arthroscopy Techniques
Tomasz Piontek, Paweł Bąkowski, Kinga Ciemniewska-Gorzela, Monika Grygorowicz
BACKGROUND: Plantaris tendon, peronus brevis tendon and flexor hallucis longus tendon augmentation, commonly used in Achilles tendon rupture, often lead to weakening of injured foot and they require the immobilization after the surgery. It is essential to develop the technique, which gives no such limitation and allows for immediate functional improvement. METHODS: We present our method of minimally invasive, endoscopic Achilles tendon reconstruction using semitendinosus and gracilis tendons with Endobutton stabilization...
2016: BMC Musculoskeletal Disorders
Samuel K Chu, Monica E Rho
Hamstring injuries are very common in athletes. Acute hamstring strains can occur with high-speed running or with excessive hamstring lengthening. Athletes with proximal hamstring tendinopathy often do not report a specific inciting event; instead, they develop the pathology from chronic overuse. A thorough history and physical examination is important to determine the appropriate diagnosis and rule out other causes of posterior thigh pain. Conservative management of hamstring strains involves a rehabilitation protocol that gradually increases intensity and range of motion, and progresses to sport-specific and neuromuscular control exercises...
May 2016: Current Sports Medicine Reports
G H Sandmann, D Hahn, M Amereller, S Siebenlist, A Schwirtz, A B Imhoff, P U Brucker
Proximal hamstring tendon ruptures are commonly associated with a significant loss of function, and operative treatment is recommended in active patients. The objective was to evaluate objective/subjective functional results and return to sports following proximal hamstring tendon repair in the mid-term follow-up. 16 repairs of proximal hamstring ruptures were performed in 15 patients (9 males, 6 females). The average age at the time of injury was 47 years (range, 21-66). All patients were clinically examined at a mean follow-up of 56 months (range, 24-112 months)...
June 2016: International Journal of Sports Medicine
Eugenio Vecchini, Gian Mario Micheloni, Valentina Rita Corbo, Francesco Perusi, Giovanni Dib, Bruno Magnan
This is a case of a proximal pin migration after ACL reconstruction in medial soft tissue with pain, inflammatory reaction and functional reduction. 33-year-old male presented at our clinic with a complete ACL rupture. Reconstruction with autogenous gracilis and semitendinosus hamstring tendons was performed and graft fixed in the femoral canal with two PLLA bioabsorbable pins (RIGIDFIX® Cross Pin System). Two months postoperatively the patient presented swelling and pain on the medial side of the knee, full range of motion and negative results at the Lachman and Pivot shift tests...
2016: Acta Bio-medica: Atenei Parmensis
Thomas S H Goom, Peter Malliaras, Michael P Reiman, Craig R Purdam
Synopsis Proximal hamstring tendinopathy (PHT) typically manifests as deep buttock pain at the hamstring common origin. Both athletic and nonathletic populations are affected by PHT. Pain and dysfunction are often long-standing and limit sporting and daily functions. There is limited evidence regarding diagnosis, assessment, and management; for example, there are no randomized controlled trials investigating rehabilitation of PHT. Some of the principles of management established in, for example, Achilles and patellar tendinopathy would appear to apply to PHT but are not as well documented...
June 2016: Journal of Orthopaedic and Sports Physical Therapy
Brian M Haus, Danny Arora, Joseph Upton, Lyle J Micheli
BACKGROUND: Patients with chronic injuries of the proximal hamstring can develop significant impairment because of weakness of the hamstring muscles, sciatic nerve compression from scar formation, or myositis ossificans. PURPOSE: To describe the surgical outcomes of patients with chronic injury of the proximal hamstrings who were treated with hamstring repair and sciatic neurolysis supplemented with nerve wrapping with acellular dermal matrix. STUDY DESIGN: Retrospective case series; Level of evidence, 4...
March 2016: Orthopaedic Journal of Sports Medicine
D Tosovic, J C Muirhead, J M M Brown, S J Woodley
Hamstring strains, particularly involving the long head of biceps femoris (BFlh) at the proximal musculotendinous junction (MTJ), are commonly experienced by athletes. With the use of diagnostic ultrasound increasing, an in-depth knowledge of normal ultrasonographic anatomy is fundamental to better understanding hamstring strain. The aim of this study was to describe the architecture of BFlh, using ultrasonography, in young men and cadaver specimens. BFlh morphology was examined in 19 healthy male participants (mean age 21...
September 2016: Clinical Anatomy
Carlos A Guanche
There is a continuum of hamstring injuries that can range from musculotendinous strains to avulsion injuries. Although the proximal hamstring complex has a strong bony attachment on the ischial tuberosity, hamstring injuries are common in athletic population and can affect all levels of athletes. Nonoperative treatment is mostly recommended in the setting of low-grade partial tears and insertional tendinosis. However, failure of nonoperative treatment of partial tears may benefit from surgical debridement and repair...
July 2015: Journal of Hip Preservation Surgery
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