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Ligament injuries

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https://www.readbyqxmd.com/read/28345597/post-traumatic-osteoarthritis-in-mice-following-mechanical-injury-to-the-synovial-joint
#1
Muhammad Farooq Rai, Xin Duan, James D Quirk, Nilsson Holguin, Eric J Schmidt, Nobuaki Chinzei, Matthew J Silva, Linda J Sandell
We investigated the spectrum of lesions characteristic of post-traumatic osteoarthritis (PTOA) across the knee joint in response to mechanical injury. We hypothesized that alteration in knee joint stability in mice reproduces molecular and structural features of PTOA that would suggest potential therapeutic targets in humans. The right knees of eight-week old male mice from two recombinant inbred lines (LGXSM-6 and LGXSM-33) were subjected to axial tibial compression. Three separate loading magnitudes were applied: 6N, 9N, and 12N...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345546/high-resolution-3t-magnetic-resonance-imaging-of-the-triangular-fibrocartilage-complex-in-chinese-wrists-correlation-with-cross-sectional-anatomy
#2
Hui-Li Zhan, Wen-Ting Li, Rong-Jie Bai, Nai-Li Wang, Zhan-Hua Qian, Wei Ye, Yu-Ming Yin
BACKGROUND: The injury of the triangular fibrocartilage complex (TFCC) is a common cause of ulnar-sided wrist pain. The aim of this study was to investigate if the high-resolution 3T magnetic resonance imaging (MRI) could demonstrate the detailed complex anatomy of TFCC in Chinese. METHODS: Fourteen Chinese cadaveric wrists (from four men and three women; age range at death from 30 to 60 years; mean age at 46 years) and forty healthy Chinese wrists (from 20 healthy volunteers, male/female: 10/10; age range from 21 to 53 years with a mean age of 32 years) in Beijing Jishuitan Hospital from March 2014 to March 2016 were included in this study...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28345404/are-bone-bruise-characteristics-and-articular-cartilage-pathology-associated-with-inferior-outcomes-2-and-6-years-after-anterior-cruciate-ligament-reconstruction
#3
Christian Lattermann, Cale A Jacobs, Emily K Reinke, Erica A Scaramuzza, Laura J Huston, Warren R Dunn, Kurt P Spindler
Objective To determine (1) if bone bruise characteristics seen on magnetic resonance imaging are associated with patient-reported outcomes prior to and following anterior cruciate ligament reconstruction and (2) if the combined presence of bone bruises with articular cartilage pathology results in inferior 2- or 6-year outcomes. Design Bone bruise volume and severity were measured on 81 patients' preoperative magnetic resonance imaging in the medial and lateral femoral condyle (MFC, LFC) and medial and lateral tibial plateau (MTP, LTP) using the Costa-Paz classification and a modified version of Roemer and Bohndorf's technique...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28344539/scaphocapitate-syndrome-with-associated-trans-scaphoid-trans-hamate-perilunate-dislocation-a-case-report-and-description-of-surgical-fixation
#4
Fiesky A Nunez, T David Luo, Jesse B Jupiter, Fiesky A Nunez
Background: Perilunate fracture dislocations are often associated with fractures of the distal pole of the scaphoid or the proximal pole of the capitate. However, the combination of perilunate dislocation with multiple carpal fractures and associated scaphocapitate syndrome is very rare. Methods: We report a unique case of scaphocapitate fracture syndrome with perilunate dislocation and fracture of the hamate resulting from a high-energy injury to the wrist during a dirt-bike competition. Results: Open reduction and internal fixation of the scaphoid fracture with a 3...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344460/intra-and-inter-rater-reliability-of-the-modified-tuck-jump-assessment
#5
Azahara Fort-Vanmeerhaeghe, Alicia M Montalvo, Rhodri S Lloyd, Paul Read, Gregory D Myer
The Tuck Jump Assessment (TJA) is a clinician-friendly screening tool that was designed to support practitioners with identification of neuromuscular deficits associated with anterior cruciate ligament injury. This study aimed to evaluate the inter- and intra-rater reliability of the modified scoring (0 to 2) TJA to add an additional range of objectivity for each criterion. A total of 24 elite youth volleyball athletes (12 males and 12 females) were included in this study. Each participant's recorded performance of the TJA was scored independently by two raters across ten criteria using the modified scale...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28343853/factors-influencing-functional-outcome-of-proximal-interphalangeal-joint-collateral-ligament-injury-when-treated-with-buddy-strapping-and-exercise
#6
Young Hak Roh, Young Do Koh, Jae Yun Go, Jung Ho Noh, Hyun Sik Gong, Goo Hyun Baek
STUDY DESIGN: Prospective cohort. INTRODUCTION AND PURPOSE: This study evaluates the factors influencing treatment outcomes of proximal interphalangeal (PIP) joint collateral ligament injuries when treated with buddy strapping. METHODS: Sixty-seven patients treated with buddy strapping for a PIP joint injury were enrolled. The finger range of motion (ROM), grip strength, and a Quick Disability of the Arm, Shoulder, and Hand (QuickDASH) score were assessed at 3 and 6 months after the initial injury...
March 23, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28343809/in%C3%A2-vivo-analysis-of-dynamic-graft-bending-angle-in-anterior-cruciate-ligament-reconstructed-knees-during-downward-running-and-level-walking-comparison-of-flexible-and-rigid-drills-for-transportal-technique
#7
Yasutaka Tashiro, Vani Sundaram, Eric Thorhauer, Tom Gale, William Anderst, James J Irrgang, Freddie H Fu, Scott Tashman
PURPOSE: To determine the in vivo dynamic graft bending angle (GBA) in anterior cruciate ligament (ACL)-reconstructed knees, correlate the angle to tunnel positions and tunnel widening, and evaluate the effects of 2 femoral tunnel drilling techniques on GBA. METHODS: Patients with an isolated ACL injury undergoing reconstruction from 2011 to 2012 were included. Transportal techniques were used to create femoral tunnels. Tunnel locations were determined by 3-dimensional computed tomography...
March 23, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28343807/dial-test-unrecognized-predictor-of-anterior-cruciate-ligament-deficiency
#8
Brian Forsythe, Bryan M Saltzman, Gregory L Cvetanovich, Michael J Collins, Thomas A Arns, Nikhil N Verma, Brian J Cole, Bernard R Bach
PURPOSE: To evaluate the effect of isolated anterior cruciate ligament (ACL) injury on tibial external rotation as measured by the dial test. METHODS: Twenty-seven consecutive patients scheduled to undergo a primary ACL reconstruction were prospectively evaluated. Physical examination and magnetic resonance imaging findings were analyzed to exclude multiligamentous injury. The dial test was performed with the patient under anesthesia with a goniometer on both the affected and unaffected knees at 30° and 90°...
March 23, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28343806/ultrasonographic-evaluation-of-anterolateral-ligament-injuries-correlation-with-magnetic-resonance-imaging-and-pivot-shift-testing
#9
Etienne Cavaignac, Marie Faruch, Karine Wytrykowski, Olivia Constant, Jérôme Murgier, Emilie Berard, Philippe Chiron
PURPOSE: (1) To compare the diagnostic ability of ultrasonography (US) and magnetic resonance imaging (MRI) to detect anterolateral ligament (ALL) injuries in anterior cruciate ligament (ACL)-deficient patients, and (2) to evaluate the correlation between ALL injury status (as determined by US and MRI) and the knee's rotational stability. METHODS: Thirty patients with an isolated ACL injury were included prospectively over a 3-month period. The condition of the ALL was evaluated by 2 experienced radiologists using both US and MRI...
March 23, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28343325/mri-can-accurately-detect-meniscal-ramp-lesions-of-the-knee
#10
Justin W Arner, Elmar Herbst, Jeremy M Burnham, Ashish Soni, Jan-Hendrik Naendrup, Adam Popchak, Freddie H Fu, Volker Musahl
PURPOSE: Posterior horn meniscal tears are commonly found in conjunction with anterior cruciate ligament (ACL) injury. Some believe tears in the posterior meniscocapsular zone, coined ramp lesions, are important to knee stability. The purpose of this study was to determine whether pre-operative MRI evaluation was able to accurately and reproducibly identify ramp lesions. METHODS: Three blinded reviewers assessed MRIs twice for the presence of ramp lesions in patients undergoing ACL reconstruction...
March 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28341067/treatment-of-recurrent-dupuytren-contracture-in-joints-previously-effectively-treated-with-collagenase-clostridium-histolyticum
#11
Brian J Bear, Clayton A Peimer, F Thomas D Kaplan, Gregory J Kaufman, James P Tursi, Ted Smith
PURPOSE: Collagenase Clostridium histolyticum (CCH) is approved for the treatment of adults with Dupuytren contracture with a palpable cord. This open-label, phase 4 study evaluated the safety and efficacy of CCH for the retreatment of recurrent contractures in joints that were previously effectively treated with CCH. METHODS: Patients participating in a long-term follow-up study who had contracture recurrence (increased ≥ 20° with a palpable cord) after successful treatment in the previous study were eligible...
March 21, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28339434/platelet-rich-plasma-in-musculoskeletal-pathology-a-necessary-rescue-or-a-lost-cause
#12
Annu Navani, Gang Li, Joshua Chrystal
BACKGROUND: Platelet rich plasma (PRP) has been used for decades to facilitate surgical tissue repair; therefore, the current trend of percutaneously injecting PRP to theoretically enhance tissue regeneration and repair is a logical progression. Applications include treatment of osteoarthritis, tendinopathy, chondropathy, acute and chronic soft tissue injuries, muscle or ligament tear, as well as enhancement of healing after bone or tissue reconstruction. However, there is limited evidence to support the use of PRP in the abovementioned conditions...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339288/the-proximal-tibiofibular-joint-a-biomechanical-analysis-of-the-anterior-and-posterior-ligamentous-complexes
#13
Daniel Cole Marchetti, Gilbert Moatshe, Brian M Phelps, Kimi D Dahl, Marcio Balbinotti Ferrari, Jorge Chahla, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Dislocation of the proximal tibiofibular joint is a complex injury that is often overlooked or misdiagnosed. Surgical management is recommended for severe acute or for chronic symptomatic instability of the proximal tibiofibular joint. Although the anterior ligamentous complex has been reported to be stronger than the posterior complex, biomechanical data are lacking. PURPOSE: To determine the ultimate load of the anterior and posterior ligamentous complexes of the proximal tibiofibular joint to determine optimal graft selection...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28338388/preferred-hip-strategy-during-landing-reduces-knee-abduction-moment-in-collegiate-female-soccer-players
#14
Anh-Dung Nguyen, Jeffrey B Taylor, Taylor G Wimbish, Jennifer L Keith, Kevin R Ford
CONTEXT: Hip focused interventions are aimed to decrease frontal plane knee loading related to anterior cruciate ligament (ACL) injuries. Whether a preferred hip landing strategy decreases frontal plane knee loading is unknown. OBJECTIVE: To determine if a preferred hip landing strategy during a drop vertical jump (DVJ) is utilized during a single leg landing (SLL) task and whether differences in frontal plane knee loading are consistent between a DVJ and a SLL task...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28337590/acl-reconstructed-and-acl-deficient-individuals-show-differentiated-trunk-hip-and-knee-kinematics-during-vertical-hops-more-than-20%C3%A2-years-post-injury
#15
Jonas L Markström, Eva Tengman, Charlotte K Häger
PURPOSE: Little is known regarding movement strategies in the long term following injury of the anterior cruciate ligament (ACL), and even less about comparisons of reconstructed and deficient knees in relation to healthy controls. The present purpose was to compare trunk, hip, and knee kinematics during a one-leg vertical hop (VH) ~20 years post-ACL injury between persons treated with surgery and physiotherapy (ACLR), solely physiotherapy (ACLPT), and controls (CTRL). Between-leg kinematic differences within groups were also investigated...
March 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28336150/effects-of-foot-rotation-positions-on-knee-valgus-during-single-leg-drop-landing-implications-for-acl-injury-risk-reduction
#16
P S P Teng, P W Kong, K F Leong
BACKGROUND: Non-contact anterior cruciate ligament (ACL) injuries commonly occur when athletes land in high risk positions such as knee valgus. The position of the foot at landing may influence the transmission of forces from the ankle to the knee. Using an experimental approach to manipulate foot rotation positions, this study aimed to provide new insights on how knee valgus during single-leg landing may be influenced by foot positions. METHODS: Eleven male recreational basketball players performed single-leg drop landings from a 30-cm high platform in three foot rotation positions (toe-in, toe-forward and toe-out) at initial contact...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28336149/the-acl-injury-response-a-collagen-based-analysis
#17
Joshua S Everhart, John H Sojka, Christopher C Kaeding, Alicia L Bertone, David C Flanigan
BACKGROUND: Anterior cruciate ligament (ACL) injuries do not effectively heal. Tendon graft tissue after reconstruction shows rapid tissue turnover and 'ligamentization.' It is unknown whether native torn ACL tissue undergoes significant collagen turnover after injury or is arrested by the intraarticular environment. It is also unknown whether injury mechanism or chronicity affect torn ligament tissue turnover. METHODS: Thirty-three mid-substance ACL biopsies were obtained during primary arthroscopic ACL reconstruction (n=31; nine contact injuries, 22 non-contact injuries, 22 males, 11 females; mean age 28...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28333559/technique-tip
#18
Gregory R Waryasz, Stephen Marcaccio, Joseph A Gil
Lisfranc injury fixation or arthrodesis typically involves the reduction and fixation of several tarsometatarsal joints with either screws or a plate and screw constructs. A successful fixation or arthrodesis of the Lisfranc joint requires proper screw placement from the medial cuneiform to the base of the second metatarsal. This is typically done free-hand; however, we describe use of an anterior cruciate ligament guide to help maintain reduction and assist with drill trajectory for more accurate screw or suture button construct placement...
April 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28332404/conceptual-design-and-implantation-of-an-external-fixator-with-improved-mobility-for-knee-rehabilitation
#19
Gianluca Gatti
A hinged external fixator is used to allow early knee rehabilitation in case of injury or trauma, as an alternative approach to immobilization. It is mainly adopted for the treatment of dislocations, which involve tearing of the ligaments, and it basically consists of two links connected to each other by a revolute joint. Each link is fixed to the femur and tibia via pin fixation, and the revolute joint is approximately aligned to the knee flexion-extension (FE) axis. The advantage in its implantation is to protect ligament reconstruction, while allowing for an aggressive rehabilitation...
March 23, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28332110/minimizing-injury-and-maximizing-return-to-play-lessons-from-engineered-ligaments
#20
REVIEW
Keith Baar
Musculoskeletal injuries account for more than 70% of time away from sports. One of the reasons for the high number of injuries and long return to play is that we have only a very basic understanding of how our training alters tendon and ligament (sinew) structure and function. Sinews are highly dense tissues that are difficult to characterize both in vivo and in vitro. Recently, engineered ligaments have been developed in vitro using cells from human anterior cruciate ligaments or hamstring tendons. These three-dimensional tissues can be grown in a laboratory, treated with agents thought to affect sinew physiology, and then mechanically tested to determine their function...
March 22, 2017: Sports Medicine
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