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Ligament reconstruction

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https://www.readbyqxmd.com/read/28102713/factors-associated-with-the-status-of-meniscal-tears-following-meniscal-repair-concomitant-with-anterior-cruciate-ligament-reconstruction
#1
Takehiko Matsushita, Kanto Nagai, Daisuke Araki, Toshikazu Tanaka, Tomoyuki Matsumoto, Kotaro Nishida, Masahiro Kurosaka, Ryosuke Kuroda
Purpose Anterior cruciate ligament (ACL) injuries are often accompanied by meniscal tears. Meniscal repair is typically performed during ACL reconstruction. However, retear of the meniscus after repair is frequent. The purpose of this study was to analyze the factors associated with meniscal healing after meniscal repair concomitant with ACL reconstruction. Materials and Methods Eighty-seven meniscal repairs in 87 patients who received meniscal repair combined with ACL reconstruction and received second-look arthroscopy at a mean of postoperatively 15...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28101827/scapholunate-and-perilunate-injuries-in-the-athlete
#2
REVIEW
Nathan T Morrell, Amanda Moyer, Noah Quinlan, Adam B Shafritz
PURPOSE OF THE REVIEW: Scapholunate and perilunate injuries can be difficult to diagnose and treat in the athlete. In this review article, we present the mechanism of injury, evaluation, management, and outcomes of treatment for these injuries. RECENT FINDINGS: Acute repair of dynamic scapholunate ligament injuries remains the gold standard, but judicious use of a wrist splint can be considered for the elite athlete who is in season. The treatment of static scapholunate ligament injury remains controversial...
January 18, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28098706/current-trends-in-ulnar-collateral-ligament-reconstruction-surgery-among-newly-trained-orthopaedic-surgeons
#3
Ryan M Degen, Christopher L Camp, Johnathan A Bernard, David M Dines, David W Altchek, Joshua S Dines
INTRODUCTION: Ulnar collateral ligament (UCL) reconstructions are being performed with an increasing annual incidence. The purpose of this study was to evaluate trends in UCL surgery among recently trained orthopaedic surgeons. METHODS: The American Board of Orthopaedic Surgeons (ABOS) database was used to identify all UCL reconstructions from 2004 to 2013. Procedures were identified by Current Procedural Terminology (CPT) codes and verified by International Classification of Disease, Ninth Revision (ICD-9) codes...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28095091/factors-informing-fear-of-reinjury-after-anterior-cruciate-ligament-reconstruction
#4
Cheryl A Ross, Amanda Clifford, Quinette A Louw
OBJECTIVE: Fear of reinjury is associated with cessation of sport after anterior cruciate ligament (ACL) reconstruction despite normal postoperative knee function. The objective of this study is to describe factors informing athletes' experience of fear of reinjury post ACL reconstruction, in athletes who cited fear as the sole reason for not returning to their pre-injury level of sport. DESIGN: Mixed-methods study design of qualitative and a preliminary quantitative component...
January 17, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28090444/bone-marrow-edema-like-lesions-bmels-are-associated-with-higher-t1%C3%AF-and-t2-values-of-cartilage-in-anterior-cruciate-ligament-acl-reconstructed-knees-a-longitudinal-study
#5
Jingshan Gong, Valentina Pedoia, Luca Facchetti, Thomas M Link, C Benjamin Ma, Xiaojuan Li
BACKGROUND: To evaluate the longitudinal changes of bone marrow edema-like lesions (BMELs) in patients after anterior cruciate ligament (ACL) reconstruction and to investigate the effect of BMELs on cartilage matrix composition changes measured using MR T1ρ and T2 mapping. METHODS: Patients with acute ACL tear were enrolled in a prospective study. MR imaging was performed at baseline (before surgeries) and at 6-month, 1-year and 2-year after ACL reconstruction...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090441/principal-component-analysis-t1%C3%AF-voxel-based-relaxometry-of-the-articular-cartilage-a-comparison-of-biochemical-patterns-in-osteoarthritis-and-anterior-cruciate-ligament-subjects
#6
Valentina Pedoia, Colin Russell, Allison Randolph, Xiaojuan Li, Sharmila Majumdar
BACKGROUND: Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090003/primary-hinged-external-fixation-of-terrible-triad-injuries-and-olecranon-fracture-dislocations-of-the-elbow
#7
Kensuke Sakai, Masahiro Shirahama, Naoto Shiba, Kenji Yoshida, Shiro Yoshida
This study aimed to introduce a new treatment that apples primary hinged external fixation for complex fracture-dislocations of the elbow in 12 cases. We retrospectively assessed the functional outcomes of eight patients with terrible triad injuries and three patients with an olecranon fracture-dislocation of the elbow, who were treated at our hospital using a primary hinged external fixator between June 2012 and December 2014. Ten patients underwent repair or replacement of the radial head, while three underwent repair of the olecranon...
January 16, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/28089795/comparison-of-postoperative-biomechanical-function-between-anatomic-double-bundle-and-single-bundle-acl-reconstructions-using-calcium-phosphate-hybridized-tendon-grafts-in-goats
#8
Hirotaka Mutsuzaki, Hiromichi Fujie, Hiromi Nakajima, Makoto Fukagawa, Shunsuke Nomura, Masataka Sakane
BACKGROUND: Calcium phosphate (CaP)-hybridized tendon grafts improved biomechanical function compared with untreated grafts after single-bundle (SB) anterior cruciate ligament (ACL) reconstruction.The purpose of this study was to compare the biomechanical functionbetweenanatomic double-bundle (DB)and single-bundle (SB)ACL reconstructions using CaP-hybridized tendon grafts at 6 months postoperativelyin goats. HYPOTHESIS: We hypothesized that the postoperativebiomechanicalfunctioninthe DBgroupwill bebetterthan that inthe SB group...
January 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28089495/assessment-of-the-isometry-of-the-anterolateral-ligament-in-a-3-dimensional-weight-bearing-computed-tomography-simulation
#9
Karl Wieser, Philipp Fürnstahl, Fabio Carrillo, Sandro F Fucentese, Lazaros Vlachopoulos
PURPOSE: To simulate the most isometric insertion points of the anterolateral ligament (ALL) in a weight-bearing 3-dimensional computed tomography (CT) model using previously published anatomic landmarks and to define radiographic landmarks, which make for an easier identification of the optimal insertion points. METHODS: The most isometric femoral insertion points were analyzed for 10 individuals, using data of weight-bearing CT scans in increasing knee flexion positions...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28087215/surgical-outcome-of-posterior-ankle-impingement-syndrome-with-concomitant-ankle-disorders-treated-simultaneously-in-patient-engaged-in-athletic-activity
#10
Wataru Miyamoto, Shinya Miki, Hirotaka Kawano, Masato Takao
BACKGROUND: It is unclear whether simultaneous surgery for posterior ankle impingement syndrome (PAIS) and concomitant ankle disorders, such as anterior ankle impingement syndrome (AAIS), lateral ankle instability (LAI), and osteochondral lesion of the talus (OLT), allows for early return to athletic activity. METHODS: Ninety-seven patients who engaged in athletic activity (mean age 27 [range 18-43] years) and were treated by a hindfoot endoscopic approach for PAIS alone or simultaneously for PAIS and concomitant ankle disorders were included in this study...
January 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28081294/xenogeneic-bio-root-prompts-the-constructive-process-characterized-by-macrophage-phenotype-polarization-in-rodents-and-nonhuman-primates
#11
Hui Li, Jingjing Sun, Jie Li, Hefeng Yang, Xiangyou Luo, Jinlong Chen, Li Xie, Fangjun Huo, Tian Zhu, Weihua Guo, Weidong Tian
Tissue or organ regeneration using xenogeneic matrices is a promising approach to address the shortage of donor matrices for allotransplantation. Success of such approach has been demonstrated to correlate with macrophage-mediated fibrotic homeostasis and tissue remodeling. The previous studies have demonstrated that treated dentin matrix (TDM) could be a suitable bioactive substrate for allogeneic tooth root regeneration. This study constructed xenogeneic bioengineered tooth root (bio-root) via a combination of porcine TDM (pTDM) with allogeneic dental follicle cells (DFCs)...
January 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28078610/optimization-of-the-return-to-sport-paradigm-after-anterior-cruciate-ligament-reconstruction-a-critical-step-back-to-move-forward
#12
REVIEW
Bart Dingenen, Alli Gokeler
Athletes who have sustained an anterior cruciate ligament (ACL) injury often opt for an ACL reconstruction (ACLR) with the goal and expectation to resume sports. Unfortunately, the proportion of athletes successfully returning to sport is relatively low, while the rate of second ACL injury has been reported to exceed 20% after clearance to return to sport, especially within younger athletic populations. Despite the development of return-to-sport guidelines over recent years, there are still more questions than answers on the most optimal return-to-sport criteria after ACLR...
January 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28076887/in-vivo-bone-tunnel-evaluation-of-nanoparticle-grafts-using-an-acl-reconstruction-rabbit-model
#13
S A Grant, S E Smith, H Schmidt, F Pfeiffer, K Kuroki, S Sherman, R A White, D A Grant
Acellular human gracilis tendons conjugated with gold nanoparticles (AuNP) and hydroxyapatite nanoparticles (nano-HAp) were used as a graft in an anterior cruciate ligament (ACL) reconstruction rabbit model. The ACLs of 11 New Zealand rabbits were reconstructed using grafts conjugated without nanoparticles, with AuNP only, and with both AuNP and nano-HAp. Semi-quantitative histological scoring of bone tunnel portion of grafts was performed after 14 weeks. Bone tunnels were scored for graft degeneration, graft remodeling, percentage of new host fibrous connective, collateral connection, head-to-head connection, graft collagen fiber organization, new host fibrous connective tissue organization, and graft and interface vascularity...
January 11, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28075493/joint-stability-after-canine-cranial-cruciate-ligament-graft-reconstruction-varies-among-femoral-fixation-sites
#14
Louisa K Ho-Eckart, Masahiro Seki, Lindsey M Luizza, Michael T Kearney, Mandi J Lopez
OBJECTIVE: To quantify stability in cranial cruciate ligament (CrCL) deficient canine stifles with hamstring grafts affixed at 3 femoral locations. STUDY DESIGN: Canine stifle motion study using a multi-cohort, repeated measures design. SAMPLE POPULATION: 27 canine cadaver stifles. METHODS: Hamstring grafts (HG) were affixed at the gracilis-semitendinosus insertion and on the lateral femur (1) proximal trochlear ridge (TR), (2) craniodistal to fabella (F), or (3) condyle center (CC)...
January 11, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#15
Harvi F Hart, Kay M Crossley, Natalie J Collins, David C Ackland
PURPOSE: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics are frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee brace during high dynamic loading activities in individuals with lateral knee osteoarthritis after ACLR and valgus malalignment. METHODS: Nineteen participants who had undergone ACLR 5 to 20 years previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assessed...
January 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28071744/biodegradable-magnesium-screws-accelerate-fibrous-tissue-mineralization-at-the-tendon-bone-insertion-in-anterior-cruciate-ligament-reconstruction-model-of-rabbit
#16
Jiali Wang, Jiankun Xu, Weimin Fu, Wenxiang Cheng, Kaiming Chan, Patrick Shu-Hang Yung, Ling Qin
The incorporation of tendon graft into bone tunnel is one of the most challenging clinical issues in anterior cruciate ligament (ACL) reconstruction. As a biodegradable metal, Mg has appropriate mechanical strength and osteoinductive effects, thus may be a promising alternative to commercialized products used for graft fixation. Therefore, it was hypothesized that Mg based interference screws would promote tendon graft-bone junction healing when compared to Ti screws. Herein, we compared the effects of Mg and Ti screws on tendon graft healing in rabbits with ACL reconstruction via histological, HR-pQCT and mechanical analysis...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070690/reconstruction-of-defects-of-the-trachea
#17
Margot Den Hondt, Jan Jeroen Vranckx
The trachea has a complex anatomy to fulfill its tasks. Its unique fibro-cartilaginous structure maintains an open conduit during respiration, and provides vertical elasticity for deglutition, mobility of the neck and speech. Blood vessels pierce the intercartilaginous ligaments to perfuse the ciliated epithelium, which ensures effective mucociliary clearance. Removal of a tracheal segment affected by benign or malignant disease requires airtight restoration of the continuity of the tube. When direct approximation of both tracheal ends is no longer feasible, a reconstruction is needed...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28068159/suspensory-versus-aperture-fixation-of-a-quadrupled-hamstring-tendon-autograft-in-anterior-cruciate-ligament-reconstruction
#18
William M Browning, Melissa A Kluczynski, Christian Curatolo, John M Marzo
BACKGROUND: Hamstring grafts have become a popular choice for anterior cruciate ligament (ACL) reconstruction; however, the most effective means of fixation of these soft tissue grafts is unknown. PURPOSE: To determine whether suspensory or aperture fixation of hamstring tendon autografts provides better stability and clinical outcomes in ACL reconstruction. STUDY DESIGN: Meta-analysis. METHODS: A literature search of studies reporting single-bundle ACL reconstructions using 4-stranded hamstring tendon autografts with aperture or suspensory fixation with a minimum 24-month follow-up was conducted...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28067743/comparative-perioperative-pain-and-recovery-in-women-undergoing-vaginal-reconstruction-versus-robotic-sacrocolpopexy
#19
Lauren B Westermann, Catrina C Crisp, Donna Mazloomdoost, Steven D Kleeman, Rachel N Pauls
BACKGROUND: In this study of patients undergoing vaginal hysterectomy with either robotic or vaginal prolapse repair, there was no difference in quality of life in the weeks following surgery; however, less narcotics were used, less pain was documented by nurses and Surgical Pain Scale (SPS), and better performance on voiding trials was noted in those undergoing robotic sacrocolpopexy. OBJECTIVES: Minimally invasive surgery for pelvic organ prolapse is the preferred surgical route for optimal recovery...
January 6, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28065990/delayed-diagnosis-of-an-isolated-posterolateral-corner-injury-a-case-report
#20
Patrick Welsh, Christopher DeGraauw, David Whitty
INTRODUCTION: Isolated injuries to the posterolateral corner of the knee are a rare and commonly missed injury associated with athletic trauma, motor vehicle accidents, and falls. Delayed or missed diagnoses can negatively impact patient prognosis, contributing to residual instability, chronic pain, and failure of surgical repair to other ligaments. CASE PRESENTATION: A 44-year-old male CrossFit athlete presented with a history of two non-contact hyperextension injuries to his left knee while walking on ice...
December 2016: Journal of the Canadian Chiropractic Association
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