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Orthopaedic Journal of Sports Medicine

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https://www.readbyqxmd.com/read/28321432/a-novel-implant-system-for-unloading-the-medial-compartment-of-the-knee-by-lateral-displacement-of-the-iliotibial-band
#1
Vivek N Shenoy, Hanson S Gifford, John T Kao
BACKGROUND: Medial knee osteoarthritis (OA) typically occurs with excessive mechanical load within the medial compartment, resulting in degeneration of the articular cartilage. PURPOSE: A novel extracapsular implant (Latella Knee Implant) has been developed to unload the medial compartment of the knee. The implant displaces the iliotibial band (ITB) over the lateral femoral condyle, thereby increasing its effective moment arm, resulting in a transfer of load from the medial compartment to the lateral compartment of the knee...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321431/osteochondritis-dissecans-of-the-humeral-capitellum-in-young-athletes-comparison-between-baseball-players-and-gymnasts
#2
Shiro Kajiyama, Satoshi Muroi, Hiroyuki Sugaya, Norimasa Takahashi, Keisuke Matsuki, Nobuaki Kawai, Makoto Osaki
BACKGROUND: Osteochondritis dissecans (OCD) lesions are often observed in the humeral capitellum both in young baseball players and gymnasts. It is generally believed that capitellar OCD in baseball players can be seen on an anteroposterior (AP) radiograph with the elbow in 45° of flexion. However, the mechanism of injury seems to be different in baseball players and gymnasts. Repetitive valgus overload with the elbow in flexion is believed to be the cause of capitellar OCD lesions in baseball players, whereas weightbearing with the elbow in extension may be the cause of OCD in gymnasts...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321430/corrigendum
#3
(no author information available yet)
[This corrects the article DOI: 10.1177/2325967116684121.].
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321429/intermediate-to-long-term-results-of-combined-anterior-cruciate-ligament-reconstruction-and-autologous-chondrocyte-implantation
#4
Andrew N Pike, Tim Bryant, Takahiro Ogura, Tom Minas
BACKGROUND: Cartilage injury associated with anterior cruciate ligament (ACL) ruptures is common; however, relatively few reports exist on concurrent cartilage repair with ACL reconstruction. Autologous chondrocyte implantation (ACI) has been utilized successfully for treatment of moderate to large chondral defects. HYPOTHESIS: ACL insufficiency with relatively large chondral defects may be effectively managed with concurrent ACL reconstruction and ACI. STUDY DESIGN: Case series; Level of evidence, 4...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321428/high-grade-partial-and-retracted-2-cm-proximal-hamstring-ruptures-nonsurgical-treatment-revisited
#5
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/28321427/the-effect-of-the-number-of-carries-on-injury-risk-and-subsequent-season-s-performance-among-running-backs-in-the-national-football-league
#6
Matthew J Kraeutler, John W Belk, Eric C McCarty
BACKGROUND: In recent years, several studies have correlated pitch count with an increased risk for injury among baseball pitchers. However, no studies have attempted to draw a similar conclusion based on number of carries by running backs (RBs) in football. PURPOSE: To determine whether there is a correlation between number of carries by RBs in the National Football League (NFL) and risk of injury or worsened performance in the subsequent season. STUDY DESIGN: Cohort study; Level of evidence, 3...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321426/quantitative-anatomic-analysis-of-the-native-ligamentum-teres
#7
Jacob D Mikula, Erik L Slette, Jorge Chahla, Alex W Brady, Renato Locks, Christiano A C Trindade, Matthew T Rasmussen, Robert F LaPrade, Marc J Philippon
BACKGROUND: While recent studies have addressed the biomechanical function of the ligamentum teres and provided descriptions of ligamentum teres reconstruction techniques, its detailed quantitative anatomy remains relatively undocumented. Moreover, there is a lack of consensus in the literature regarding the number and morphology of the acetabular attachments of the ligamentum teres. PURPOSE: To provide a clinically relevant quantitative anatomic description of the native human ligamentum teres...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321425/adult-cells-combined-with-platelet-rich-plasma-for-tendon-healing-cell-source-options
#8
Eva Rubio-Azpeitia, Pello Sánchez, Diego Delgado, Isabel Andia
BACKGROUND: The combination of cells with platelet-rich plasma (PRP) may fulfill tendon deficits and help overcome the limited ability of tendons to heal. PURPOSE: To examine the suitability of 3 human cell types in combination with PRP and the potential impact of the tenocyte-conditioned media (CM) to enhance tendon healing. STUDY DESIGN: Controlled laboratory study. METHODS: Tenocytes, bone marrow-derived mesenchymal stem cells, and skin fibroblasts were cultured in 3-dimensional PRP hydrogels supplemented or not with CM, and cell proliferation and migration were examined...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321424/cell-based-meniscus-repair-and-regeneration-at-the-brink-of-clinical-translation-a-systematic-review-of-preclinical-studies
#9
Jasmijn V Korpershoek, Tommy S de Windt, Michella H Hagmeijer, Lucienne A Vonk, Daniel B F Saris
BACKGROUND: Meniscus damage can be caused by trauma or degeneration and is therefore common among patients of all ages. Repair or regeneration of the menisci could be of great importance not only for pain relief or regaining function but also to prevent degenerative disease and osteoarthritis. Current treatment does not offer consistent long-term improvement. Although preclinical research focusing on augmentation of meniscal tear repair and regeneration after meniscectomy is encouraging, clinical translation remains difficult...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321423/the-anterolateral-ligament-an-anatomic-study-on-sex-based-differences
#10
Matt Daggett, Camilo Helito, Matthew Cullen, Andrew Ockuly, Kyle Busch, Joseph Granite, Barth Wright, Bertrand Sonnery-Cottet
BACKGROUND: The anterolateral ligament (ALL) has been shown to have an important role in rotatory stability of the knee. While there is abundant research on sex-based differences related to anterior cruciate ligament (ACL) rupture, there is a paucity of literature related to such differences in the ALL. PURPOSE: To define any sex-based differences in the ALL with regard to length, width, and thickness. STUDY DESIGN: Descriptive laboratory study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321422/autologous-tenocyte-injection-for-the-treatment-of-chronic-recalcitrant-gluteal-tendinopathy-a-prospective-pilot-study
#11
Thomas A Bucher, Jay R Ebert, Anne Smith, William Breidahl, Michael Fallon, Tao Wang, Ming-Hao Zheng, Gregory C Janes
BACKGROUND: Gluteal tendinopathy is a common cause of lateral hip pain, and existing conservative treatment modalities demonstrate high symptom recurrence rates. Autologous tenocyte injection (ATI) is a promising cell therapy that may be useful for the treatment of gluteal tendinopathy. PURPOSE: To investigate the safety and effectiveness of ATI, specifically in patients with chronic recalcitrant gluteal tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28255569/platelet-rich-plasma-injections-for-advanced-knee-osteoarthritis-a-prospective-randomized-double-blinded-clinical-trial
#12
Nayana Joshi Jubert, Luciano Rodríguez, Maria Mercedes Reverté-Vinaixa, Aurora Navarro
BACKGROUND: Intra-articular injections of platelet-rich plasma (PRP) to treat symptoms of knee osteoarthritis (OA) have been successfully used in young patients and in the early stages of disease. No previous studies have analyzed outcomes of PRP injections during the late stages. HYPOTHESIS: PRP reduces pain and leads to a more effective and lasting functional recovery than corticosteroid with local anesthetic. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28255568/association-between-lateral-posterior-tibial-slope-body-mass-index-and-acl-injury-risk
#13
Katherine M Bojicic, Mélanie L Beaulieu, Daniel Y Imaizumi Krieger, James A Ashton-Miller, Edward M Wojtys
BACKGROUND: While body mass index (BMI), a modifiable parameter, and knee morphology, a nonmodifiable parameter, have been identified as risk factors for anterior cruciate ligament (ACL) rupture, the interaction between them remains unknown. An understanding of this interaction is important because greater compressive axial force (perhaps due to greater BMI) applied to a knee that is already at an increased risk because of its geometry, such as a steep lateral posterior tibial slope, could further increase the probability of ACL injury...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28255567/an-ecological-study-of-anterior-cruciate-ligament-reconstruction-part-2-functional-performance-tests-correlate-with-return-to-sport-outcomes
#14
Timothy M McGrath, Gordon Waddington, Jennie M Scarvell, Nick Ball, Rob Creer, Kevin Woods, Damian Smith, Roger Adams
BACKGROUND: Additional high-quality prospective studies are needed to better define the objective criteria used in relation to return-to-sport decisions after anterior cruciate ligament (ACL) reconstruction in active populations. PURPOSE: To investigate prospectively the relationship between functional performance test results at 24 weeks postoperative and return-to-sport activity (Tegner activity score) at 12 and 24 months, respectively, after synthetic (ligament advanced reinforcement system [LARS]) and autograft (doubled semitendinosus/gracilis [2ST/2GR]) ACL reconstructions...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28255566/youth-football-injuries-a-prospective-cohort
#15
Andrew R Peterson, Adam J Kruse, Scott M Meester, Tyler S Olson, Benjamin N Riedle, Tyler G Slayman, Todd J Domeyer, Joseph E Cavanaugh, M Kyle Smoot
BACKGROUND: There are approximately 2.8 million youth football players between the ages of 7 and 14 years in the United States. Rates of injury in this population are poorly described. Recent studies have reported injury rates between 2.3% and 30.4% per season and between 8.5 and 43 per 1000 exposures. HYPOTHESIS: Youth flag football has a lower injury rate than youth tackle football. The concussion rates in flag football are lower than in tackle football. STUDY DESIGN: Cohort study; Level of evidence, 3...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28255565/defining-the-long-toss-a-professional-baseball-epidemiological-study
#16
Austin V Stone, Sandeep Mannava, Anita Patel, Alejandro Marquez-Lara, Michael T Freehill
BACKGROUND: Despite widespread use of long-toss throwing in baseball as a component of arm conditioning, interval throwing programs, and rehabilitation, long-toss distance and throwing mechanics remain controversial. PURPOSE: To ascertain the perceived definition of long-toss throwing through a survey of professional pitchers, pitching coaches (PCs), and certified athletic trainers (ATCs) associated with Major League Baseball. STUDY DESIGN: Descriptive epidemiology study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28251168/return-to-play-after-forearm-and-hand-injuries-in-the-national-basketball-association
#17
Kyle W Morse, Krystle A Hearns, Michelle Gerwin Carlson
BACKGROUND: Hand injuries can result in significant time away from competition for professional basketball players. Time to return to play after hand injuries in elite athletes has not been well described. PURPOSE: To report the return to play from metacarpal fractures, phalangeal fractures, and thumb ligament tears in National Basketball Association (NBA) players over a 5-year period. STUDY DESIGN: Descriptive epidemiology study. METHODS: The NBA transaction report was analyzed from January 2009 to May 2014...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28210659/medial-patellofemoral-ligament-reconstruction-femoral-tunnel-accuracy-relationship-to-disease-specific-quality-of-life
#18
Laurie A Hiemstra, Sarah Kerslake, Mark Lafave
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction is a procedure aimed to reestablish the checkrein to lateral patellar translation in patients with symptomatic patellofemoral instability. Correct femoral tunnel position is thought to be crucial to successful MPFL reconstruction, but the accuracy of this statement in terms of patient outcomes has not been tested. PURPOSE: To assess the accuracy of femoral tunnel placement in an MPFL reconstruction cohort and to determine the correlation between tunnel accuracy and a validated disease-specific, patient-reported quality-of-life outcome measure...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28210658/patellar-maltracking-persists-in-adolescent-females-with-patellofemoral-pain-a-longitudinal-study
#19
Victor R Carlson, Barry P Boden, Aricia Shen, Jennifer N Jackson, Katharine E Alter, Frances T Sheehan
BACKGROUND: Patellofemoral pain is one of the most common conditions seen in sports medicine practices, particularly among adolescent females. However, the natural history of the underlying pathology in patellofemoral pain during puberty remains poorly understood. PURPOSE: The purpose of this longitudinal study is to assess changes in patellar maltracking patterns in subjects with patellofemoral pain as they mature from mid- to late adolescence. STUDY DESIGN: Cohort study; Level of evidence, 3...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203605/femoral-and-tibial-tunnel-diameter-and-bioabsorbable-screw-findings-after-double-bundle-acl-reconstruction-in-5-year-clinical-and-mri-follow-up
#20
Tommi Kiekara, Antti Paakkala, Piia Suomalainen, Heini Huhtala, Timo Järvelä
BACKGROUND: Tunnel enlargement is frequently seen in short-term follow-up after anterior cruciate ligament reconstruction (ACLR). According to new evidence, tunnel enlargement may be followed by tunnel narrowing, but the long-term evolution of the tunnels is currently unknown. HYPOTHESIS/PURPOSE: The hypothesis was that tunnel enlargement is followed by tunnel narrowing caused by ossification as seen in follow-up using magnetic resonance imaging (MRI). The purpose of this study was to evaluate the ossification pattern of the tunnels, the communication of the 2 femoral and 2 tibial tunnels, and screw absorption findings in MRI...
February 2017: Orthopaedic Journal of Sports Medicine
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