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Ulnar collateral ligament

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https://www.readbyqxmd.com/read/28932488/medial-elbow-pain
#1
REVIEW
Raul Barco, Samuel A Antuña
Medial elbow pain is uncommon when compared with lateral elbow pain.Medial epicondylitis is an uncommon diagnosis and can be confused with other sources of pain.Overhead throwers and workers lifting heavy objects are at increased risk of medial elbow pain.Differential diagnosis includes ulnar nerve disorders, cervical radiculopathy, injured ulnar collateral ligament, altered distal triceps anatomy or joint disorders.Children with medial elbow pain have to be assessed for 'Little League elbow' and fractures of the medial epicondyle following a traumatic event...
August 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28927669/are-the-hamstrings-from-the-drive-leg-or-landing-leg-more-active-in-baseball-pitchers-an-electromyographic-study
#2
Brandon J Erickson, Antonia Zaferiou, Peter N Chalmers, Deana Ruby, Phillip Malloy, Timothy J Luchetti, Nikhil N Verma, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure among baseball players of all levels. There are several graft choices in performing UCLR, one of which is a hamstring (gracilis or semitendinosus) autograft. It is unclear whether the hamstring muscle from a pitcher's drive leg (ipsilateral side of the UCLR) or landing leg (contralateral side of the UCLR) is more active during the pitching motion. We hypothesized that the landing leg semitendinosus will be more electromyographically active than the drive leg...
September 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28902761/care-of-water-polo-players
#3
Jennifer D Stromberg
Water polo is a team sport that combines swimming with overhead throwing and wrestling. This places water polo players at risk for a unique group of illnesses and injuries. In addition to the medical problems and injuries seen in competitive swimmers, water polo players are at risk for a variety of traumatic injuries, including concussions, eye injuries, tympanic membrane perforation, fractures, dislocations, and lacerations. Repetitive overhead throwing also places these athletes at risk for related injuries, such as shoulder problems, including rotator cuff strain and impingement, and elbow problems, such as ulnar collateral ligament injuries, posteromedial impingement, and osteochondritis dissecans of the radial capitellum...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28902098/repair-of-the-thumb-ulnar-collateral-ligament-with-suture-tape-augmentation
#4
Anthony F De Giacomo, Steven S Shin
One of the most commonly injured structures of the thumb metacarpophalangeal (MCP) joint is the ulnar collateral ligament (UCL). An acute injury of this ligament is often amenable to primary repair. Despite the favorable outcomes of primary repair, the thumb is often restricted during initial healing of the ligament with immobilization and delayed rehabilitation. We present a novel technique to augment the repair of the UCL with suture tape to provide immediate biomechanical support and strength during the critical time of ligament healing...
September 8, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28888568/in%C3%A2-vivo-3-dimensional-kinematics-of-thumb-carpometacarpal-joint-during-thumb-opposition
#5
Yohei Kawanishi, Kunihiro Oka, Hiroyuki Tanaka, Kiyoshi Okada, Kazuomi Sugamoto, Tsuyoshi Murase
PURPOSE: This study primarily aimed to demonstrate the screw-home rotation of the thumb carpometacarpal (CMC) joint and the function of surrounding ligaments during thumb oppositional motion. METHODS: A 3-dimensional kinematic analysis of the thumb CMC joint was conducted using data derived from computed tomography of 9 healthy volunteers. Scans were obtained in the neutral forearm and wrist position and the thumb in maximum radial abduction, maximum palmar abduction, and maximum opposition...
September 7, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28870128/relationship-of-surgically-repaired-ulnar-collateral-ligament-injury-of-the-thumb-to-the-morphology-of-the-metacarpophalangeal-joint-of-the-thumb
#6
Michael Le, Gary M Lourie, Glenn Gaston
No abstract text is available yet for this article.
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28867910/hook-plate-fixation-for-the-thumb-ulnar-collateral-ligament-fracture-avulsion
#7
Ali Tabrizi, Ahmadreza Afshar
During a taekwondo competition, a 20-year-old female competitor injured her left thumb. There was pain, swelling, and tenderness at the ulnar side of the metacarpophalangeal joint. Plain radiography demonstrated an avulsion fracture with a small-size fragment at the base of the proximal phalanx. A mini hook plate was used to repair the lesion. The patient was satisfied with the results and returned to her sports activities after 2 months.
August 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28866343/clinical-outcome-of-arthroscopic-treatment-for-posteromedial-elbow-impingement-in-adolescent-baseball-players
#8
Tetsuya Matsuura, Toshiyuki Iwame, Naoto Suzue, Jyoji Iwase, Shunsuke Tamaki, Kenji Yokoyama, Koichi Sairyo
PURPOSE: To evaluate the clinical outcomes of arthroscopic treatment in adolescent baseball players with posteromedial elbow impingement. METHODS: This retrospective study evaluated the clinical outcome of arthroscopic treatment for posteromedial elbow impingement in adolescent baseball players. Patients were eligible for participation if they had undergone surgery at least 2 years earlier and excluded if they had arthritis, loose bodies, osteochondritis dissecans, ulnar collateral ligament tear, flexor/pronator injuries or medial epicondylitis, or nerve problems...
August 30, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28836462/a-biomechanical-evaluation-of-a-2-suture-anchor-repair-technique-for-thumb-metacarpophalangeal-joint-ulnar-collateral-ligament-injuries
#9
Joseph A Gil, Alison Chambers, Kalpit N Shah, Joseph J Crisco, Christopher Got, Edward Akelman
BACKGROUND: A complete thumb ulnar collateral ligament (UCL) repaired with 1-suture anchor has been demonstrated to be significantly weaker compared with the intact UCL. The objective of this study is to test the biomechanical strength of a 2-anchor thumb UCL repair. METHODS: Nine paired fresh-frozen hands were used for this biomechanical analysis. One thumb from each pair was randomized to the control group and one to the repair group. In the control group, the UCL was loaded to failure in tension...
August 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28819597/case-report-oblique-fracture-of-the-ulnar-sesamoid-bone-of-the-metacarpophalangeal-joint-a-rare-pathology
#10
Dauwe Jan, Van der Cruyssen Fréderic, De Smet Luc
INTRODUCTION: Fractures of the sesamoid bones of the metacarpophalangeal joint (MCPJ) are a rare pathology in hand trauma. Only a few case reports and case series were found in literature. The diagnosis of an ulnar sesamoid bone fracture of the MCPJ is difficult and can pose a differential diagnostic problem with Stener lesions or ulnar collateral ligament (UCL) instability. This pathology is frequently missed with subsequent poor functional outcomes. Correct and early diagnosis is important as this will allow for correct treatment with full recovery of function without sequelae...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28807347/dorsoradial-instability-of-the-thumb-metacarpophalangeal-joint-a-biomechanical-investigation
#11
Byung-Sung Kim, Alex Doermann, Michelle McGarry, Masaki Akeda, Hansel Ihn, Thay Q Lee
PURPOSE: To define the role of the dorsal capsule and associated dorsal fibrocartilage (DFC) and their interactions with the radial collateral ligament (RCL) as a thumb metacarpophalangeal (MCP) joint stabilizer. METHODS: Eight cadaveric thumbs were mounted onto a custom jig with 20 N of muscle load applied. The thumb position in space was digitized to measure ulnar-radial, pronation-supination, and volar-dorsal laxity at 0°, 30°, and 60° MCP joint flexion. Serial sectioning was performed and measurements were repeated for the intact state, proper RCL insufficiency, proper and accessory (complete) RCL insufficiency, complete RCL with 50% DFC (radial) insufficiency, and complete RCL with complete DFC insufficiency...
August 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28806094/the-relationship-of-throwing-arm-mechanics-and-elbow-varus-torque-within-subject-variation-for-professional-baseball-pitchers-across-82-000-throws
#12
Christopher L Camp, Travis G Tubbs, Glenn S Fleisig, Joshua S Dines, David M Dines, David W Altchek, Brittany Dowling
BACKGROUND: Likely due to the high level of strain exerted across the elbow during the throwing motion, elbow injuries are on the rise in baseball. To identify at-risk athletes and guide postinjury return-to-throw programs, a better understanding of the variables that influence elbow varus torque is desired. PURPOSE: To describe the within-subject relationship between elbow varus torque and arm slot and arm rotation in professional baseball pitchers. STUDY DESIGN: Descriptive laboratory study...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28781974/do-major-league-baseball-team-physicians-harvest-the-semitendinosus-from-the-drive-leg-or-landing-leg-when-performing-ulnar-collateral-ligament-reconstruction-on-elite-baseball-pitchers
#13
Brandon J Erickson, Peter N Chalmers, Jeffrey R Dugas, Bernard R Bach, Gregory P Nicholson, Nikhil N Verma, Christopher S Ahmad, Anthony A Romeo
BACKGROUND: Hamstring autograft is a common graft choice when performing ulnar collateral ligament reconstruction (UCLR). PURPOSE/HYPOTHESIS: The purpose of this study was to survey Major League Baseball (MLB) team physicians and determine whether these physicians harvest the hamstring (semitendinosus or gracilis) from the drive leg (ipsilateral to surgical site) or landing leg (contralateral to surgical site) when performing UCLR on elite-level pitchers. The hypothesis was that the majority of surgeons harvest the hamstring from the drive leg when performing a UCLR...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28774254/can-physical-examination-create-a-stener-lesion
#14
Manesha Lankachandra, John P Eggers, James W Bogener, Richard L Hutchison
BACKGROUND: The purpose of this study is to determine whether a Stener lesion can be created while testing stability of the ulnar collateral ligament (UCL) of the thumb. Testing was performed in a manner that reproduced clinical examination. METHODS: Six fresh frozen hand and forearm specimens underwent sequential sectioning of the accessory UCL, the proper UCL, and the ulnar sagittal band. Measurements of radial deviation of the metacarpophalangeal (MCP) joint were taken with the thumb in neutral rotation, pronation and supination, both with 0 degrees and with 30 degrees of flexion of the MCP joint...
September 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28774189/variation-in-the-rate-of-surgery-for-ulnar-collateral-ligament-injury-of-the-metacarpophalangeal-joint-of-the-thumb
#15
Nicky Stoop, Teun Teunis, David Ring, Kyle R Eberlin
BACKGROUND: The indications for repair of rupture of the ulnar collateral ligament (UCL) of the metacarpophalangeal (MP) joint of the thumb are debated. We studied factors predictive of operative treatment. METHODS: In this retrospective study, we queried the research database from 3 affiliated urban hospitals in a single city in the United States and identified 383 patients with a thumb MP UCL injury. We recorded age, sex, treating surgeon, and whether or not a magnetic resonance imaging (MRI) was ordered...
September 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28738083/the-influence-of-sex-and-trauma-impact-on-the-rupture-site-of-the-ulnar-collateral-ligament-of-the-thumb
#16
Sandra Boesmueller, Wolfgang Huf, Gregor Rettl, Falko Dahm, Alexander Meznik, Gabriela Muschitz, Hugo Kitzinger, Adam Bukaty, Christian Fialka, Martin Vierhapper
PURPOSE AND HYPOTHESIS: Although sex- and gender-specific analyses have been gaining more attention during the last years they have rarely been performed in orthopaedic literature. The primary purpose of this study was to investigate whether for injuries of the UCL the specific location of the rupture is influenced by sex. A secondary study question addressed the sex-independent effect of trauma intensity on the rupture site of the UCL. METHODS: This study is a retrospective analysis of all patients with either a proximal or distal bony avulsion or with a mid-substance tear or ligament avulsion of the UCL treated surgically between 1992 and 2015 at two level-I trauma centres...
2017: PloS One
https://www.readbyqxmd.com/read/28735845/anterior-and-posterior-bands-of-the-anterior-bundle-in-the-elbow-ulnar-collateral-ligament-ultrasound-anatomy
#17
Masahito Yoshida, Hideyuki Goto, Tetsuya Takenaga, Atsushi Tsuchiya, Katsumasa Sugimoto, Volker Musahl, Freddie Fu, Takanobu Otsuka
BACKGROUND: The anterior oblique bundle (AOL) of the ulnar collateral ligament (UCL) is composed of anterior and posterior bands. This study evaluated the anatomy of the anterior and posterior bands in the AOL of the UCL for their separate visualization with ultrasound (US). METHODS: We dissected 18 cadaveric elbow joints and recorded the direction of each band from the lateral view to determine the proper position for the US transducer. To determine the proper inclination of the transducer, we measured the inclinations of each band at the proximal and distal insertions from the transverse view...
July 20, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734533/changes-in-pitching-mechanics-after-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-pitchers
#18
Daniel A Portney, Jake M Lazaroff, Lucas T Buchler, Stephen M Gryzlo, Matthew D Saltzman
BACKGROUND: Medial ulnar collateral ligament (UCL) reconstruction is a common procedure performed on Major League Baseball pitchers. Variations in pitching mechanics before and after UCL reconstructive surgery are not well understood. METHODS: Publicly available pitch tracking data (PITCHf/x) were compared for all Major League Baseball pitchers who underwent UCL reconstruction between 2008 and 2013. Specific parameters analyzed were fastball percentage, release location, velocity, and movement of each pitch type...
August 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28730863/non-operative-management-of-ulnar-collateral-ligament-injuries-in-the-throwing-athlete
#19
Mia Smucny, Robert W Westermann, Matthew Winters, Mark S Schickendantz
Medial ulnar collateral ligament (UCL) injuries have become increasingly prevalent in overhead athletes. The orthopaedic literature contains a wealth of information on operative management of these injuries. However, there are few high-quality longitudinal studies on non-operative care of UCL injuries. The purpose of this review is to describe the non-operative approach to managing UCL injuries, including recommended rehabilitation strategies and predictors of successful non-operative treatment.
July 25, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28719556/inadvertent-harvest-of-the-median-nerve-instead-of-the-palmaris-longus-tendon
#20
Bruce M Leslie, A Lee Osterman, Scott W Wolfe
BACKGROUND: The palmaris longus tendon is frequently used as a tendon graft or ligament replacement. In rare instances the median nerve has been inadvertently harvested instead of the palmaris longus for use as a tendon. METHODS: Nineteen cases in which the median nerve had been mistakenly harvested instead of the palmaris longus tendon were collected from members of the American Society for Surgery of the Hand (ASSH) Listserve. Surgeons involved in the subsequent care of the subject who had had an inadvertent harvest were contacted or the chart was reviewed...
July 19, 2017: Journal of Bone and Joint Surgery. American Volume
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