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https://www.readbyqxmd.com/read/29339062/the-effect-of-humeral-tunnel-locations-on-radiographic-tunnel-changes-in-baseball-players-following-medial-ulnar-collateral-ligament-reconstruction-comparison-of-anatomic-and-nonanatomic-locations
#1
Jin-Young Park, Seok Won Chung, Jun Gyu Lee, Jae-Hyung Lee, Soo Kyung Lee, Hyun Jun Ji, Kyung-Soo Oh
BACKGROUND: There has been no study on radiologic changes after medial ulnar collateral ligament (MUCL) reconstruction and related clinical features. METHODS: Data from 39 baseball players who underwent MUCL reconstruction were collected and analyzed. The baseball players were classified into 2 groups according to the starting point of the humeral tunnel: (1) the lower tip of the medial epicondyle (group NA, n = 21) and (2) the remnant of the MUCL (group A, n = 18)...
January 12, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29332665/performance-outcomes-after-medial-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-positional-players
#2
John P Begly, Michael S Guss, Theodore S Wolfson, Siddharth A Mahure, Andrew S Rokito, Laith M Jazrawi
BACKGROUND: We sought to determine whether professional baseball positional players who underwent medial ulnar collateral ligament (MUCL) reconstruction demonstrate decreases in performance on return to competition compared with preoperative performance metrics and their control-matched peers. METHODS: Data for 35 Major League Baseball positional players who underwent MUCL reconstruction during 31 seasons were obtained. Twenty-six players met inclusion criteria...
February 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29326958/performance-and-return-to-sport-after-thumb-ulnar-collateral-ligament-repair-in-major-league-baseball-players
#3
Robert A Jack, Kyle R Sochacki, Bryce Gagliano, David M Lintner, Joshua D Harris, Patrick C McCulloch
Background: Acute ruptures of the ulnar collateral ligament (UCL) of the thumb are common injuries in sports. Surgical repair has yielded excellent results and high return-to-sport (RTS) rates in elite athletes. Purpose: To determine (1) the RTS rate in Major League Baseball (MLB) players following thumb UCL repair, (2) postoperative career length and games played per season, (3) pre- and postoperative performance, (4) postoperative performance compared with matched control players, and (5) whether dominant and nondominant hand injuries respond differently...
January 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29324530/early-results-of-single-plug-autologous-osteochondral-grafting-for-osteochondritis-dissecans-of-the-capitellum-in-adolescents
#4
Donald S Bae, Eitan M Ingall, Patricia E Miller, Katherine Eisenberg
BACKGROUND: Osteochondral autologous transplantation surgery (OATS) has been advocated for unstable osetochondritis dissecans (OCD) lesions of the adolescent capitellum, though limited information is available regarding clinical and radiographic results in North American patients. We hypothesize that single-plug OATS is safe and effective in alleviating pain and restoring function in unstable OCD. METHODS: Twenty-eight patients with unstable OCD treated with single-plug OATS were evaluated...
January 10, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29318169/reasons-for-retirement-following-ulnar-collateral-ligament-reconstruction-among-major-league-baseball-pitchers
#5
Brandon J Erickson, Junyoung Ahn, Peter N Chalmers, Christopher S Ahmad, Bernard R Bach, Nikhil N Verma, Anthony A Romeo
Background: Ulnar collateral ligament reconstruction (UCLR) has become an increasingly common procedure among Major League Baseball (MLB) pitchers. The long-term effects of this procedure on the career of an MLB pitcher are largely unknown. Purpose/Hypothesis: The purpose of this study was to determine why and when MLB pitchers who underwent UCLR during their careers retired from baseball as compared with controls. We hypothesized that pitchers who underwent UCLR are no more likely than control pitchers to retire from elbow or shoulder problems...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29311675/sensorimotor-abilities-predict-on-field-performance-in-professional-baseball
#6
Kyle Burris, Kelly Vittetoe, Benjamin Ramger, Sunith Suresh, Surya T Tokdar, Jerome P Reiter, L Gregory Appelbaum
Baseball players must be able to see and react in an instant, yet it is hotly debated whether superior performance is associated with superior sensorimotor abilities. In this study, we compare sensorimotor abilities, measured through 8 psychomotor tasks comprising the Nike Sensory Station assessment battery, and game statistics in a sample of 252 professional baseball players to evaluate the links between sensorimotor skills and on-field performance. For this purpose, we develop a series of Bayesian hierarchical latent variable models enabling us to compare statistics across professional baseball leagues...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29289396/assessment-of-elbow-torque-and-other-parameters-during-the-pitching-motion-comparison-of-fastball-curveball-and-change-up
#7
Eric C Makhni, Vincent A Lizzio, Fabien Meta, Jeffrey P Stephens, Kelechi R Okoroha, Vasilios Moutzouros
PURPOSE: To assess the precision of a new wearable device in detecting medial elbow torque during the pitching motion in competitive baseball pitchers and to determine the differences in torque across pitch types and thrower demographic characteristics. METHODS: High school and collegiate baseball pitchers were recruited from August 1, 2016, to January 31, 2017, through direct request by athletic trainers and coaches. Body dimensions and throwing arm measurements of the participants were collected...
December 27, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29276039/diagnosis-and-treatment-of-osteochondritis-dissecans-of-the-humeral-capitellum
#8
Masahiro Maruyama, Masatoshi Takahara, Hiroshi Satake
Osteochondritis dissecans (OCD) of the humeral capitellum is a critical elbow injury in adolescent overhead throwing athletes. However, its etiology remains unknown. Medical examinations using ultrasonography found that the prevalence of capitellar OCD among adolescent baseball players was approximately from 1% to 3%. A plain anteroposterior radiograph with the elbow in 45° of flexion is essential for the diagnosis of an OCD lesion. The stability of OCD lesions is evaluated on plain radiographs, computed tomography, and magnetic resonance imaging (MRI)...
December 21, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29244674/thrower-s-fracture-of-the-humerus-an-investigation-of-risk-factors-following-an-unlikely-scenario-a-case-report
#9
Kyle D Morgenstern, Gonzalo Barinaga, Paul J Cagle
CASE: A 26-year-old amateur baseball player without prodromal arm pain sustained a thrower's fracture of the humerus on a warm-up throw performed with submaximal effort. The fracture occurred during the first throwing session following a 6-week layoff. The patient was treated nonoperatively and made a full recovery, but he elected to not return to throwing sports. CONCLUSION: Because of the lack of risk factors in this case, we suggest that time off or irregularity in throwing may play a greater role in a thrower's fracture than previously established...
April 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29225021/implications-of-core-and-hip-injuries-on-major-league-baseball-pitchers-on-the-disabled-list
#10
Nathan E Marshall, Toufic R Jildeh, Kelechi R Okoroha, Ankur Patel, Vasilios Moutzouros, Eric C Makhni
PURPOSE: To investigate the frequency of core and hip injuries in Major League Baseball (MLB) pitchers and their impact on performance, workload, and pitch type. METHODS: Demographic, performance data, and injury data were acquired for 330 MLB pitchers with 454 injuries placed on the disabled list (DL) from 2014 to 2015 seasons. Core and hip/groin injuries were analyzed in which injury year data were compared with career data and against other injury groups. RESULTS: Core injuries represented 14% of all injuries and hip/groin injuries represented 7%...
December 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29204453/physical-and-functional-differences-in-youth-baseball-players-with-and-without-throwing-related-pain
#11
Elliot M Greenberg, J Todd R Lawrence, Alicia Fernandez-Fernandez, Kshamata Shah, Casey McKenna, Marcus L Rowan, JongMyung Kim, Phillip McClure
Background: Identifying risk factors that contribute to shoulder and elbow pain within youth baseball players is important for improving injury prevention and rehabilitation strategies. Hypothesis: Differences will exist between youth baseball players with and without a history of upper extremity pain on measures related to growth, shoulder performance, and baseball exposure. Study Design: Case-control study; Level of evidence, 3. Methods: A total of 84 youth baseball players were divided into 2 groups based on self-reported history of throwing-related arm pain...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29192934/predicting-injury-in-professional-baseball-pitchers-from-delivery-mechanics-a-statistical-model-using-quantitative-video-analysis
#12
E Grant Sutter, Justin Orenduff, Will J Fox, Joshua Myers, Grant E Garrigues
Baseball pitching imposes significant stress on the upper extremity and can lead to injury. Many studies have attempted to predict injury through pitching mechanics, most of which have used laboratory setups that are often not practical for population-based analysis. This study sought to predict injury risk in professional baseball pitchers using a statistical model based on video analysis evaluating delivery mechanics in a large population. Career data were collected and video analysis was performed on a random sample of former and current professional pitchers...
November 30, 2017: Orthopedics
https://www.readbyqxmd.com/read/29158957/relationship-of-preseason-movement-screens-with-overuse-symptoms-in-collegiate-baseball-players
#13
Andrew M Busch, Daniel R Clifton, James A Onate, Vincent K Ramsey, Fred Cromartie
Background: The shoulder mobility screen of the Functional Movement Screen™ (FMS™) and the upper extremity patterns of the Selective Functional Movement Assessment (SFMA) assess global, multi-joint movement capabilities in the upper-extremities. Identifying which assessment can most accurately determine if baseball players are at an increased risk of experiencing overuse symptoms in the shoulder or elbow throughout a competitive season may reduce throwing-related injuries requiring medical attention...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29146167/incidence-and-return-to-play-after-biceps-tenodesis-in-professional-baseball-players
#14
Peter N Chalmers, Brandon J Erickson, Nikhil N Verma, John D'Angelo, Anthony A Romeo
PURPOSE: To determine return to play (RTP) rates after biceps tenodesis (BT) in professional baseball players. METHODS: Major League Baseball has maintained a prospective database containing all major and minor league baseball players who have undergone shoulder surgery since 2010. All players who had undergone BT were included. Minimum follow-up was 24 months, and thus we included data from 2010 to 2013. Using this database we determined the incidence, demographics, prior surgery history, concomitant procedures, RTP rates, and time to RTP...
November 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29095655/efficacy-of-a-prevention-program-for-medial-elbow-injuries-in-youth-baseball-players
#15
Jun Sakata, Emi Nakamura, Tatsuhiro Suzuki, Makoto Suzukawa, Atsushi Akaike, Kuniaki Shimizu, Norikazu Hirose
BACKGROUND: Youth baseball players are at high risk for elbow injuries, which can lead to future functional disability. PURPOSE: To evaluate the effectiveness of a prevention program to lower the risk of medial elbow injury in these athletes. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Youth baseball players, 8 to 11 years old, without a history of elbow and shoulder pain, were allocated to either the intervention (n = 136) or control (n = 169) group...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29082055/quadriceps-tendon-rupture-in-an-adolescent-athlete
#16
William A Zuke, Beatrice Go, Alexander E Weber, Brian Forsythe
Quadriceps tendon rupture is an uncommon injury that usually occurs in middle-aged and elderly men with a history of chronic illnesses. We report the case of a 17-year-old healthy adolescent male baseball player who sustained this injury as a result of sudden deceleration in his left knee. He initially reported to the emergency department and then presented to our practice, where he was diagnosed with a quadriceps tendon tear. Preoperatively, he was unable to perform a single straight-leg raise. During surgical repair, the free edge of the quadriceps tendon was mobilized and anchored into the superior pole of the patella, followed by sutures to ensure reinforcement of the quadriceps footprint...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29052827/primary-exploration-for-radial-nerve-palsy-associated-with-unstable-closed-humeral-shaft-fracture
#17
Soo Hong Han, In Tae Hong, Ho Jae Lee, Sang June Lee, Uk Kim, Dong Won Kim
BACKGROUND: The treatment of radial nerve palsy caused by closed humeral shaft fracture is a matter of debate. The purpose of this study is to evaluate the outcome of early surgical management of radial nerve palsy in patients with unstable closed humeral shaft fractures and to determine whether patients with this injury should be surgically explored. METHODS: Medical records of 15 consecutive patients who had undergone open reduction and internal fixation for unstable closed humeral shaft fractures were reviewed...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29034776/external-versus-two-different-internal-foci-of-attention-in-long-distance-throwing
#18
Yuta Oki, Masahiro Kokubu, Shiro Nakagomi
The present study examined the influence of attentional focus on performance during a long-distance throwing task. Twelve participants executed three maximum-effort, long-distance baseball throwing attempts in three focus conditions: internal focus on wrist flexion (wrist internal focus), internal focus on the separation between pelvis and upper torso orientations (torso internal focus), and external focus on the ball path (external focus). Compared with the external focus and torso internal focus conditions, performance was poorer in the wrist internal focus condition...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/29028445/return-to-sport-specific-performance-after-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review
#19
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29019867/the-effects-of-various-weighted-implements-on-baseball-swing-kinematics-in-collegiate-baseball-players
#20
Charles C Williams, Jacob R Gdovin, Samuel J Wilson, Vanessa L Cazas-Moreno, John D Eason, Elizabeth L Hoke, Charles R Allen, Chip Wade, John C Garner
The purpose of this study was to investigate the effects of different warm-up (WU) devices on bat swing parameters including maximal resultant velocity (MRV), resultant velocity at ball contact (RVBC), time difference between MRV and RVBC, bat angle at MRV, bat angle at RVBC, and perceptual differences (PD) of each WU implement utilized by National Collegiate Athletic Association (NCAA) Division-I baseball players. Fifteen varsity baseball players completed one experimental session during fall training. Retro-reflective markers were placed on the bat and tee to measure basic bat kinematics during the swing...
June 3, 2017: Journal of Strength and Conditioning Research
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