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https://www.readbyqxmd.com/read/29682379/extensor-tendons-rupture-after-volar-plating-of-distal-radius-fracture-related-to-a-dorsal-radial-metaphyseal-bone-spur
#1
M O Abrego, F L De Cicco, J G Boretto, G L Gallucci, P De Carli
Extensor tendon ruptures due to volar plating in distal radius fractures have mostly been described in relation with technique failures such as screw prominence and drill penetration. We report the case of a 71-year-old female with a C2 distal radius fracture with severe dorsal metaphyseal comminution. The patient underwent surgical treatment with reduction of the large fragments and fixation with a volar locking plate; the small dorsal metaphyseal nonarticular fragments were not reduced. Six months later, the patient developed extensor digitorum communis (EDC) rupture and extensor indicis proprius (EIP) laceration in coincidence with the dorsal comminution turned into a bony spur...
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29679723/comparison-of-hook-plate-with-versus-without-double-tunnel-coracoclavicular-ligament-reconstruction-for-repair-of-acute-acromioclavicular-joint-dislocations-a-prospective-randomized-controlled-clinical-trial
#2
Jian Yin, Zhaoyang Yin, Ge Gong, Chao Zhu, Chao Sun, Xinhui Liu
PURPOSE: This study was designed to compare the surgical outcomes of a hook plate with double-tunnel coracoclavicular (CC) ligament reconstruction by conjoined tendon transfer versus single hook plate surgery for the repair of acute type of Rockwood type III and V acromioclavicular (AC) joint dislocations. METHODS: The study cohort included 62 patients with acute (within 6 weeks after trauma) Rockwood type III and V AC joint dislocations who underwent surgery from February 2012 to September 2015...
April 18, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29679209/quadriceps-tendon-autograft-medial-patellofemoral-ligament-reconstruction
#3
REVIEW
Christian Fink, Robert Steensen, Peter Gföller, Robert Lawton
PURPOSE: Critically evaluate the published literature related to quadriceps tendon (QT) medial patellofemoral ligament (MPFL) reconstruction. RECENT FINDINGS: Hamstring tendon (HT) MPFL reconstruction techniques have been shown to successfully restore patella stability, but complications including patella fracture are reported. Quadriceps tendon (QT) reconstruction techniques with an intact graft pedicle on the patella side have the advantage that patella bone tunnel drilling and fixation are no longer needed, reducing risk of patella fracture...
April 20, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29676207/housekeeping-gene-stability-in-human-mesenchymal-stem-and-tendon-cells-exposed-to-tenogenic-factors
#4
Marco Viganò, Carlotta Perucca Orfei, Laura de Girolamo, John Pearson, Enrico Ragni, Paola De Luca, Alessandra Colombini
The use of biochemical inducers of mesenchymal stem cells (MSCs) differentiation into tenogenic lineage represents an investigated aspect of tendon disorder treatment. Bone morphogenetic protein 12 (BMP-12) is a widely studied factor, representing along with ascorbic acid (AA) and basic fibroblast growth factor (bFGF) one of the most promising stimulus in this context so far. Quantitative gene expression of specific tenogenic marker is commonly used to assess the efficacy of these supplements. Nevertheless, the reliability of these data is strongly associated with the choice of stable housekeeping genes...
April 20, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29669177/mutations-that-alter-the-carboxy-terminal-propeptide-cleavage-site-of-the-chains-of-type-i-procollagen-are-associated-with-a-unique-osteogenesis-imperfecta-phenotype
#5
Tim Cundy, Michael Dray, John Delahunt, Jannie Dahl Hald, Bente Langdahl, Chumei Li, Marta Szybowska, Shehla Mohammed, Emma L Duncan, Aideen M McInerney-Leo, Patricia G Wheeler, Paul Roschger, Klaus Klaushofer, Jyoti Rai, MaryAnn Weis, David Eyre, Ulrike Schwarze, Peter H Byers
Osteogenesis imperfecta (OI) is a genetic bone disorder characterized by fractures, low bone mass, and skeletal fragility. It most commonly arises from dominantly inherited mutations in the genes COL1A1 and COL1A2 that encode the chains of type I collagen. A number of recent reports have suggested that mutations affecting the carboxyl-terminal propeptide cleavage site in the products of either COL1A1 or COL1A2 give rise to a form of OI characterized by unusually dense bones. We have assembled clinical, biochemical, and molecular data from 29 individuals from 8 families with 7 different mutations affecting the C-propeptide cleavage site...
April 18, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29667905/essential-role-of-mohawk-for-tenogenic-tissue-homeostasis-including-spinal-disc-and-periodontal-ligament
#6
Ryo Nakamichi, Kensuke Kataoka, Hiroshi Asahara
Tendons and ligaments play essential roles in connecting muscle and bone and stabilizing the connections between bones. The damage to tendons and ligaments caused by aging, injury, and arthritis induces the dysfunction of the musculoskeletal system and reduces the quality of life. Current therapy for damaged tendons and ligaments depends on self-repair; however, it is difficult to reconstruct normal tissue. Regeneration therapy for tendons and ligaments has not been achieved, partly because the mechanism, cell biology, and pathophysiology of tendon and ligament development remain unclear...
April 18, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29665044/comparative-anatomy-and-development-of-pectoral-and-pelvic-girdles-in-hylid-anurans
#7
Mónica C Soliz, María Laura Ponssa, Virginia Abdala
The development of the tetrapod pectoral and pelvic girdles is intimately linked to the proximal segments of the fore- and hindlimbs. Most studies on girdles are osteological and provide little information about soft elements such as muscles and tendons. Moreover, there are few comparative developmental studies. Comparative data gleaned from cleared-and-stained whole mounts and serial histological sections of 10 species of hylid frogs are presented here. Adult skeletal morphology, along with bones, muscles, and connective tissue of both girdles and their association with the proximal portions of the anuran fore- and hindlimbs are described...
April 17, 2018: Journal of Morphology
https://www.readbyqxmd.com/read/29663013/bone-to-bone-integrations-were-complete-within-5-months-after-anatomical-rectangular-tunnel-anterior-cruciate-ligament-reconstruction-using-a-bone-patellar-tendon-bone-graft
#8
Hironari Masuda, Shuji Taketomi, Hiroshi Inui, Naoya Shimazaki, Nobuhiro Nishihara, Seikai Toyooka, Hirotaka Kawano, Takumi Nakagawa
PURPOSE: Anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone (BTB) graft is known to provide secure fixation due to the direct bone-to-bone integration of the bone plug and bone tunnel. It is important to know the time required for bone integration when designing the postoperative rehabilitation protocol or deciding when the patient can return to competition-level activity, especially if the patient is an athlete. However, because reports are scarce, the period necessary for bone-to-bone integration after ACL reconstruction using a BTB graft remains unclear...
April 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29662910/outcomes-and-return-to-sport-after-revision-anterior-cruciate-ligament-reconstruction-in-adolescent-athletes
#9
Michael Saper, Stephanie Pearce, Joseph Shung, Robert Zondervan, Roger Ostrander, James R Andrews
Background: The number of adolescent anterior cruciate ligament (ACL) injuries is rising with increased participation in higher level athletics at earlier ages. With an increasing number of primary ACL reconstructions (ACLRs) comes a rise in the incidence of revision ACLRs. Purpose: To evaluate the clinical results of revision ACLR across a group of high-level adolescent athletes with at least 2-year follow-up. Study Design: Case series; Level of evidence, 4...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29658516/optimization-of-differentiation-time-of-mesenchymal-stem-cell-to-tenocyte-under-a-cyclic-stretching-with-a-microgrooved-culture-membrane-and-selected-measurement-cells
#10
Yasuyuki Morita, Takahiro Yamashita, Toku Toku, Yang Ju
PURPOSE: There is a need for efficient stem cell-to-tenocyte differentiation techniques for tendon tissue engineering. More than 1 week is required for tenogenic differentiation with chemical stimuli, including co-culturing. Research has begun to examine the utility of mechanical stimuli, which reduces the differentiation time to several days. However, the precise length of time required to differentiate human bone marrow-derived mesenchymal stem cells (hBMSCs) into tenocytes has not been clarified...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29655901/in-vivo-heterotopic-culturing-of-prefabricated-tendon-grafts-with-mechanical-stimulation-in-a-sheep-model
#11
M Petri, P Lu, M Omar, M Ettinger, C Krettek, C Neunaber, M Jagodzinski
BACKGROUND: The goal of this study is to investigate the biomechanical and histological properties of in vivo heterotopically prefabricated cruciate ligament replacement grafts with and without mechanical stimulation. The clinical goal is to heterotopically prefabricate a bone-tendon-bone graft for anterior cruciate ligament reconstruction, which allows rapid ingrowth and early full weight bearing. METHODS: In a sheep model, eight quadriceps tendon grafts were harvested and introduced into culture chambers at their proximal and distal ends...
April 11, 2018: Knee
https://www.readbyqxmd.com/read/29652192/achilles-pullout-strength-after-open-calcaneoplasty-for-haglund-syndrome
#12
Glenn Pfeffer, Tyler Gonzalez, Matthew Zapf, Trevor J Nelson, Melodie F Metzger
BACKGROUND: Haglund syndrome involves a prominent posterior superior prominence of the calcaneus. If nonoperative management fails, operative management with calcaneoplasty is often needed. No study has assessed Achilles tendon pullout strength after an open calcaneoplasty for Haglund syndrome. The purpose of this study was to investigate those changes in a cadaveric model and provide objective data upon which to base postoperative recovery. METHODS: Seven matched pairs of cadaveric specimens (mid-tibia to toes) were divided into 2 cohorts: (1) intact/untreated and (2) open resection...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29628440/evaluation-of-versatility-of-use-of-island-first-dorsal-metacarpal-artery-flap-in-reconstruction-of-dorsal-hand-defects
#13
Mahfouz Shehata Ibrahim Ahmed, Emad Salah Ibrahim, Hazem Ibrahim Eltayeb
BACKGROUND: Posttraumatic dorsal hand defects with exposed tendons and/or bones represent a challenge to reconstructive surgeons. Many options are suggested ranging from local, regional, distant up to free flaps. First dorsal metacarpal artery island flap was commonly prescribed for reconstructing the thumb or first web space defects. METHODS: During a 30 month's period, 23 patients, 15 males aged between 17 and 48 years and 8 females aged between 18 and 36 years presented by posttraumatic dorsal hand defects...
April 5, 2018: Asian Journal of Surgery
https://www.readbyqxmd.com/read/29628380/quadriceps-tendon-autograft-in-anterior-cruciate-ligament-reconstruction-a-systematic-review
#14
REVIEW
Eoghan T Hurley, Manuel Calvo-Gurry, Dan Withers, Shane K Farrington, Ray Moran, Cathal J Moran
PURPOSE: To systematically review the current evidence to ascertain whether quadriceps tendon autograft (QT) is a viable option in anterior cruciate ligament reconstruction. METHODS: A literature review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Cohort studies comparing QT with bone-patellar tendon-bone autograft (BPTB) or hamstring tendon autograft (HT) were included. Clinical outcomes were compared, with all statistical analyses performed using IBM SPSS Statistics for Windows, version 22...
April 5, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29628379/quadriceps-tendon-autograft-for-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review-of-comparative-studies-with-minimum-two-year-follow-up
#15
REVIEW
John W Belk, Matthew J Kraeutler, Hayden A Marshall, Jesse A Goodrich, Eric C McCarty
PURPOSE: To systematically review the literature in an effort to compare outcomes of patients undergoing primary anterior cruciate ligament reconstruction (ACLR) with a quadriceps tendon (QT) autograft versus a bone-patellar tendon-bone (BPTB) or hamstring tendon (HT) autograft. METHODS: A systematic review was performed by searching PubMed, the Cochrane Library, and Embase to locate studies (Level of Evidence I-III) comparing the clinical outcomes of the QT autograft versus the BPTB or HT autograft in patients undergoing primary ACLR...
April 5, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29627930/flexor-digitorum-longus-tendon-transfer-to-the-navicular-tendon-to-tendon-repair-is-stronger-compared-with-interference-screw-fixation
#16
Daniel Marsland, Joanna M Stephen, Toby Calder, Andrew A Amis, James D F Calder
PURPOSE: To assess whether early rehabilitation could be safe after flexor digitorum longus (FDL) tendon transfer, the current biomechanical study aimed to measure tendon displacement under cyclic loading and load to failure, comparing a traditional tendon-to-tendon (TT) repair with interference screw fixation (ISF). METHODS: 24 fresh-frozen cadaveric below knee specimens underwent FDL tendon transfer. In 12 specimens a TT repair was performed via a navicular bone tunnel...
April 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29627114/partial-medial-second-toe-pulp-free-flap-and-dermal-substitute-with-skin-graft-for-salvage-reconstruction-of-a-complete-skin-envelope-degloving-of-the-small-finger
#17
V Calafat, C Strugarek, D Montoya-Faivre, F Dap, G Dautel
Skin envelope degloving of fingers are rare injuries that require rapid care and surgical treatment. Mostly caused by ring finger injuries, these traumas include bone, tendon and neurovascular pedicle damage. The authors present an unusual case of finger degloving limited exclusively to the skin envelope, without skeletal, tendinous or vascular lesion. This rare case of skin envelope degloving rendered microsurgical revascularization impossible. The authors report the results at 12 months following salvage reconstruction combining a partial second toe pulp free flap for the volar side and a dermal substitute with a thin skin graft for the dorsum...
April 4, 2018: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29624874/biological-and-biomechanical-evaluation-of-autologous-tendon-combined-with-ligament-advanced-reinforcement-system-artificial-ligament-in-a-rabbit-model-of-anterior-cruciate-ligament-reconstruction
#18
Xin-Min Wang, Gang Ji, Xiao-Meng Wang, Hui-Jun Kang, Fei Wang
OBJECTIVE: To compare the biomechanical and histological changes in a rabbit model after reconstructing the anterior cruciate ligament (ACL) with solely autologous tendon and with autologous tendon combined with the ligament advanced reinforcement system (LARS) artificial ligament. METHODS: Anterior cruciate ligament reconstruction was performed in 72 knees from 36 healthy New Zealand white rabbits (bodyweight, 2500-3000 g). The Achilles tendons were harvested bilaterally...
April 6, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29623378/acl-graft-compression-a-method-to-allow-reduced-tunnel-sizes-in-acl-reconstruction
#19
Breck R Lord, Henry B Colaco, Chinmay M Gupte, Adrian J Wilson, Andrew A Amis
PURPOSE: A common problem during ACL reconstruction is asymmetry of proximal-distal graft diameter leading to tunnel upsizing and graft-tunnel mismatch. Compression downsizing provides a graft of uniform size, allowing easy passage into a smaller tunnel. The purpose of this study was to quantify the graft compression technique and its effects on graft biomechanics and stability. It was hypothesised that compression downsizing would significantly reduce cross-sectional area (CSA); that no significant changes in graft biomechanics would occur; graft fixation stability would be improved...
April 5, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29623355/clinical-and-laboratory-features-of-patients-with-osteomalacia-initially-presenting-with-neurological-manifestations
#20
S W Kim, N Hong, Y Rhee, Y-C Choi, H Y Shin, S M Kim
Patients with osteomalacia often visit the neurology department with conditions mimicking other myopathies. We analyzed clinical features of osteomalacia patients who visited the neurology department. These patients frequently presented with hypocalcemia, hypovitaminosis D, and pain with less severe weakness. Osteomalacia should be considered when patients present with pain and weakness. INTRODUCTION: Osteomalacia is a disease of bone metabolism; however, some patients with osteomalacia initially visit the neurology department...
April 5, 2018: Osteoporosis International
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