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American Journal of Sports Medicine

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https://www.readbyqxmd.com/read/28644678/professional-athletes-return-to-play-and-performance-after-operative-repair-of-an-achilles-tendon-rupture
#1
David P Trofa, J Chance Miller, Eugene S Jang, Denzel R Woode, Justin K Greisberg, J Turner Vosseller
BACKGROUND: Most Achilles tendon ruptures are sports related. However, few studies have examined and compared the effect of surgical repair for complete ruptures on return to play (RTP), play time, and performance across multiple sports. PURPOSE: To examine RTP and performance among professional athletes after Achilles tendon repair and compare pre- versus postoperative functional outcomes of professional athletes from different major leagues in the United States...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28644677/young-athletes-after-anterior-cruciate-ligament-reconstruction-with-single-leg-landing-asymmetries-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-2-years-later
#2
Matthew P Ithurburn, Mark V Paterno, Kevin R Ford, Timothy E Hewett, Laura C Schmitt
BACKGROUND: Previous work shows that young athletes after anterior cruciate ligament reconstruction (ACLR) demonstrate single-leg (SL) landing movement asymmetries at the time of return to sport (RTS); however, the effect of movement asymmetries on longitudinal knee-related function after ACLR has not been examined. Hypothesis/Purpose: The purpose of this study was to examine the effect of SL drop-landing movement symmetry at the time of RTS on knee-related function 2 years later in young athletes after ACLR...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28636468/do-ligamentum-teres-tears-portend-inferior-outcomes-in-patients-with-borderline-dysplasia-undergoing-hip-arthroscopic-surgery-a-match-controlled-study-with-a-minimum-2-year-follow-up
#3
Edwin O Chaharbakhshi, Itay Perets, Lyall Ashberg, Brian Mu, Christopher Lenkeit, Benjamin G Domb
BACKGROUND: Arthroscopic surgery in borderline dysplastic hips remains controversial, but the role of the ligamentum teres (LT) has not been studied in this setting. HYPOTHESIS: Borderline dysplastic patients with LT tears have worse short-term outcomes than those without LT tears. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were prospectively collected on patients who underwent arthroscopic surgery between February 2008 and April 2014...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28636440/effects-of-time-to-start-training-after-acute-patellar-tendon-enthesis-injuries-on-healing-of-the-injury-in-a-rabbit-model
#4
Lin Wang, Kaiyu Xiong, Bo Wang, Xiaotian Liang, Haiwei Li, Haitao Liu, Hui He
BACKGROUND: A patellar tendon injury is a common injury in sports. The optimal time to start training after an acute, proximal patellar enthesis injury is still unclear. HYPOTHESIS: The time to start training after an acute, proximal patellar enthesis injury significantly affects healing of the patellar tendon 4 weeks after the injury. STUDY DESIGN: Controlled laboratory study. METHODS: The left hindlimbs of 35 mature female rabbits were randomly assigned to 5 injury groups including a 4-week natural healing group (NH4W) and 4 training groups that started low-intensity training at 24 hours (POST24), 48 hours (POST48), 72 hours (POST72), and 96 hours (POST96) after an acute patellar tendon injury, with 7 limbs in each group...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28636429/autograft-versus-allograft-for-posterior-cruciate-ligament-reconstruction-an-updated-systematic-review-and-meta-analysis
#5
John W Belk, Matthew J Kraeutler, Justin M Purcell, Eric C McCarty
BACKGROUND: Multiple studies have demonstrated a higher risk of graft failure after anterior cruciate ligament reconstruction with allograft, but limited data are available comparing outcomes of posterior cruciate ligament reconstruction (PCLR) with autograft versus allograft. PURPOSE: To compare the clinical outcomes of autograft versus allograft for primary PCLR. STUDY DESIGN: Systematic review. METHODS: A systematic review was performed by searching PubMed, the Cochrane Library, and EMBASE to locate studies (level of evidence I-III) comparing clinical outcomes of autograft versus allograft in patients undergoing primary PCLR with the conventional transtibial technique...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28622025/comparison-of-concussion-rates-between-ncaa-division-i-and-division-iii-men-s-and-women-s-ice-hockey-players
#6
John M Rosene, Bryan Raksnis, Brie Silva, Tyler Woefel, Paul S Visich, Thomas P Dompier, Zachary Y Kerr
BACKGROUND: Examinations related to divisional differences in the incidence of sports-related concussions (SRC) in collegiate ice hockey are limited. PURPOSE: To compare the epidemiologic patterns of concussion in National Collegiate Athletic Association (NCAA) ice hockey by sex and division. STUDY DESIGN: Descriptive epidemiology study. METHODS: A convenience sample of men's and women's ice hockey teams in Divisions I and III provided SRC data via the NCAA Injury Surveillance Program during the 2009-2010 to 2014-2015 academic years...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28622022/comparison-of-clinical-and-radiological-results-in-the-arthroscopic-repair-of-full-thickness-rotator-cuff-tears-with-and-without-the-anterior-attachment-of-the-rotator-cable
#7
Nam Su Cho, Seong Cheol Moon, Se Jung Hong, Seong Hae Bae, Yong Girl Rhee
BACKGROUND: The anterior rotator cable is critical in force transmission of the rotator cuff. However, few clinical studies have examined the correlation between the integrity of the anterior supraspinatus tendon and surgical outcomes in patients with rotator cuff tears. PURPOSE: To compare the clinical and structural outcomes of the arthroscopic repair of full-thickness rotator cuff tears with and without anterior disruption of the supraspinatus tendon. STUDY DESIGN: Cohort study; Level of evidence, 3...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28617619/early-functional-outcomes-of-periacetabular-osteotomy-after-failed-hip-arthroscopic-surgery-for-symptomatic-acetabular-dysplasia
#8
Benjamin F Ricciardi, Kara G Fields, Catherine Wentzel, Bryan T Kelly, Ernest L Sink
BACKGROUND: Persistent acetabular dysplasia is a common reason for the failure of hip arthroscopic surgery; however, the effect of prior hip arthroscopic surgery on functional outcomes after subsequent periacetabular osteotomy (PAO) is unknown. Hypothesis/Purpose: The purpose of this study was to (1) compare demographic and radiological findings in patients who had and had not undergone previous hip arthroscopic surgery before PAO for symptomatic acetabular dysplasia and (2) compare the short-term, hip-specific patient-reported outcomes in these same patient populations...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#9
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609644/outcomes-of-hip-arthroscopic-surgery-in-patients-with-t%C3%A3-nnis-grade-1-osteoarthritis-at-a-minimum-5-year-follow-up-a-matched-pair-comparison-with-a-t%C3%A3-nnis-grade-0-control-group
#10
Benjamin G Domb, Edwin O Chaharbakhshi, Danil Rybalko, Mary R Close, Jody Litrenta, Itay Perets
BACKGROUND: Studies on midterm outcomes of the arthroscopic treatment of femoroacetabular impingement (FAI) and labral tears with mild osteoarthritis (OA) are limited. PURPOSE: To evaluate outcomes of the arthroscopic treatment of FAI and labral tears in patients with mild preoperative OA (Tönnis grade 1) at a minimum 5-year follow-up, and to perform a matched-pair comparison to a control group with Tönnis grade 0. STUDY DESIGN: Cohort study; Level of evidence, 3...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609640/assessment-of-disability-related-to-femoroacetabular-impingement-syndrome-by-use-of-the-patient-reported-outcome-measure-information-system-promis-and-objective-measures-of-physical-performance
#11
Andrew J Sheean, Matthew R Schmitz, Catherine L Ward, Aaron E Barrow, David J Tennent, Christopher J Roach, Travis C Burns, Jason M Wilken
BACKGROUND: The National Institutes of Health (NIH)-sponsored Patient-Reported Outcomes Measurement System (PROMIS) has been described as a valuable tool for characterizing outcomes among patients with specific musculoskeletal conditions. Additionally, previously proposed objective measures of physical performance among patients with nonarthritic hip abnormalities are costly and not practically incorporated into routine clinical practice. PURPOSE: (1) To determine the ability of the PROMIS to differentiate between patients with femoroacetabular impingement (FAI) and asymptomatic controls, (2) to determine the effect of FAI on subjects' completion of timed physical performance measures, and (3) to determine whether associations exist between established patient-reported outcome (PRO) measures and subjects' completion of physical performance measures...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609639/the-iliofemoral-line-a-radiographic-sign-of-acetabular-dysplasia-in-the-adult-hip
#12
Matthew J Kraeutler, Zachary R Ashwell, Tigran Garabekyan, Jesse A Goodrich, K Linnea Welton, Jonathan A Flug, John N O'Hara, Omer Mei-Dan
BACKGROUND: Several radiographic parameters utilized for the diagnosis of acetabular dysplasia in adults suffer from poor reproducibility and reliability. PURPOSE: To define and validate a novel radiographic parameter (the iliofemoral line [IFL]) for the detection of frank and borderline hip dysplasia and to compare the sensitivity and specificity of this radiographic marker to those of previously validated qualitative parameters. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609637/midterm-and-long-term-results-of-medial-versus-lateral-meniscal-allograft-transplantation-a-meta-analysis
#13
Seong-Il Bin, Kyung-Wook Nha, Ji-Young Cheong, Young-Soo Shin
BACKGROUND: It is unclear whether lateral meniscal allograft transplantation (MAT) procedures lead to better clinical outcomes than medial MAT. HYPOTHESIS: The survival rates are similar between medial and lateral MAT, but the clinical outcomes of lateral MAT are better than those of medial MAT at final follow-up. STUDY DESIGN: Meta-analysis. METHODS: In this meta-analysis, we reviewed studies that assessed survival rates in patients who underwent medial or lateral MAT with more than 5 years of follow-up and that used assessments such as pain and Lysholm scores to compare postoperative scores on knee outcome scales...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609131/a-comprehensive-reanalysis-of-the-distal-iliotibial-band-quantitative-anatomy-radiographic-markers-and-biomechanical-properties
#14
Jonathan A Godin, Jorge Chahla, Gilbert Moatshe, Bradley M Kruckeberg, Kyle J Muckenhirn, Alexander R Vap, Andrew G Geeslin, Robert F LaPrade
BACKGROUND: The qualitative anatomy of the distal iliotibial band (ITB) has previously been described. However, a comprehensive characterization of the quantitative anatomic, radiographic, and biomechanical properties of the Kaplan fibers of the deep distal ITB has not yet been established. It is paramount to delineate these characteristics to fully understand the distal ITB's contribution to rotational knee stability. Purpose/Hypothesis: There were 2 distinct purposes for this study: (1) to perform a quantitative anatomic and radiographic evaluation of the distal ITB's attachment sites and their relationships to pertinent osseous and soft tissue landmarks, and (2) to quantify the biomechanical properties of the deep (Kaplan) fibers of the distal ITB...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609125/minimum-2-year-outcomes-of-hip-arthroscopic-surgery-in-patients-with-acetabular-overcoverage-and-profunda-acetabulae-compared-with-matched-controls-with-normal-acetabular-coverage
#15
Sivashankar Chandrasekaran, Nader Darwish, Edwin O Chaharbakhshi, Carlos Suarez-Ahedo, Parth Lodhia, Benjamin G Domb
BACKGROUND: Advancements in instrumentation and techniques have extended the scope of hip arthroscopic surgery to treat complex osseous deformities that were previously best addressed with an open approach. Global pincer-type femoroacetabular impingement is an example of an abnormality requiring osseous correction with a technically challenging access point. PURPOSE: To report on the patterns of clinical presentation and intra-articular derangements, radiological associations, and minimum 2-year outcomes after hip arthroscopic surgery in patients with a lateral center edge angle (LCEA) >40° and profunda acetabulae in comparison with matched controls with normal acetabular coverage...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609119/risk-factors-for-tear-progression-in-symptomatic-rotator-cuff-tears-a-prospective-study-of-174-shoulders
#16
Nobuyuki Yamamoto, Mitsuyoshi Mineta, Jun Kawakami, Hirotaka Sano, Eiji Itoi
BACKGROUND: The risk factors for tear progression in symptomatic rotator cuff tears have not been clarified yet. It is important for orthopaedic surgeons to know the natural course of tear progression when nonoperative management is to be chosen. HYPOTHESIS: Tears in younger patients, high-activity patients, or heavy laborers would progress in size more than those in older patients, low-activity patients, or light laborers. STUDY DESIGN: Case-control study; Level of evidence, 3...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28599111/corrigendum
#17
(no author information available yet)
Krosshaug T, Steffen K, Kristianslund E, et al. The vertical drop jump is a poor screening test for ACL injuries in female elite soccer and handball players: a prospective cohort study of 710 athletes. Am J Sports Med. 2016;44(4):874-883. (Original DOI: 10.1177/0363546515625048 ).
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28590784/acetabular-chondral-lesions-in-hip-arthroscopy-relationships-between-grade-topography-and-demographics
#18
Carlos Suarez-Ahedo, Chengcheng Gui, Stephanie M Rabe, Sivashankar Chandrasekaran, Parth Lodhia, Benjamin G Domb
BACKGROUND: Hip pain remains a challenge given the multiple factors that can cause damage to the articular cartilage, such as traumatic injury, metabolic damage, and morphologic variations such as femoroacetabular impingement (FAI) and that can contribute to progression of osteoarthritis. However, a direct relationship between patient characteristics, the extent of acetabular chondral damage, and topologic characteristics of chondral lesions has not been established. PURPOSE: To compare the grade of acetabular chondral damage, measured in terms of acetabular labrum articular disruption (ALAD) classification, to the size and position of the chondral lesions, matching patients' demographic factors such as age and body mass index (BMI)...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28586631/tgf-%C3%AE-1-improves-biomechanical-strength-by-extracellular-matrix-accumulation-without-increasing-the-number-of-tenogenic-lineage-cells-in-a-rat-rotator-cuff-repair-model
#19
Hitoshi Arimura, Chisa Shukunami, Takuya Tokunaga, Tatsuki Karasugi, Nobukazu Okamoto, Takuya Taniwaki, Hidetoshi Sakamoto, Hiroshi Mizuta, Yuji Hiraki
BACKGROUND: Transforming growth factor β1 (TGF-β1) positively regulates the tenogenic marker genes scleraxis ( Scx) and tenomodulin ( Tnmd) in mesenchymal progenitors in vitro. However, little is known about the effect of TGF-β1 on the expression of tenogenic markers during rotator cuff (RC) healing in rats. HYPOTHESIS: TGF-β1 improves the biomechanical properties and histological maturity of reparative tissue in a rat RC repair model by stimulating the growth of tenogenic cells...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28586628/effectiveness-of-radial-extracorporeal-shock-wave-therapy-reswt-when-combined-with-supervised-exercises-in-patients-with-subacromial-shoulder-pain-a-double-masked-randomized-sham-controlled-trial
#20
Elisabeth Kvalvaag, Jens Ivar Brox, Kaia Beck Engebretsen, Helene Lundgaard Soberg, Niels Gunnar Juel, Erik Bautz-Holter, Leiv Sandvik, Cecilie Roe
BACKGROUND: Subacromial shoulder pain is a common complaint, and radial extracorporeal shock wave therapy (rESWT) is increasingly used to treat this condition. Although many therapists use rESWT in combination with supervised exercises, no studies have evaluated the additional effect of rESWT with supervised exercises for subacromial shoulder pain. PURPOSE: To assess whether rESWT is more effective than sham rESWT when combined with supervised exercises for improving pain and function in patients with subacromial shoulder pain...
June 1, 2017: American Journal of Sports Medicine
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