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Tendon to bone

Raju Vaishya, Ahmad Tariq Azizi, Amit Kumar Agarwal, Vipul Vijay
Osgood-Schlatter disease (OSD) is a condition in which the patellar tendon insertion on the tibial tuberosity becomes inflamed. It is a well-known condition in late childhood characterized by pain and a bony prominence over the tibial tuberosity. The pain is usually exacerbated by physical activities like running, jumping, and climbing stairs. In the acute stage, the margins of the patellar tendon become blurred in radiographs due to the soft tissue swelling. After three to four months, bone fragmentation at the tibial tuberosity is viewed...
September 13, 2016: Curēus
Jennica J Tucker, Joshua A Gordon, Robert C Zanes, Andrey Zuskov, John D Vinciguerra, Roy D Bloebaum, Louis J Soslowsky
BACKGROUND: Current techniques in rotator cuff repair often lack structural integrity. P(2) porous titanium-coated constructs (DJO Surgical, Austin, TX, USA) promote osseointegration and soft tissue ingrowth. This study examined the ability of this material to improve the structural integrity of supraspinatus tendon repair in a rat model. We hypothesized that P(2) implants placed at the tendon-to-bone interface would improve mechanical and histologic measures of supraspinatus healing...
October 14, 2016: Journal of Shoulder and Elbow Surgery
Sahishnu Patel, Anthony P Gualtieri, Helen H Lu, William N Levine
Rotator cuff tear is a very common shoulder injury that often necessitates surgical intervention for repair. Despite advances in surgical techniques for rotator cuff repair, there is a high incidence of failure after surgery because of poor healing capacity attributed to many factors. The complexity of tendon-to-bone integration inherently presents a challenge for repair because of a large biomechanical mismatch between the tendon and bone and insufficient regeneration of native tissue, leading to the formation of fibrovascular scar tissue...
October 17, 2016: Annals of the New York Academy of Sciences
Alexandra Scharf, Shannon P Holmes, Merrilee Thoresen, Jennifer Mumaw, Alaina Stumpf, John Peroni
Ultrasound-guided intralesional injection of mesenchymal stem cells (MSCs) is held as the benchmark for cell delivery in tendonitis. The primary objective of this study was to investigate the immediate cell distribution following intralesional injection of MSCs. Unilateral superficial digital flexor tendon (SDFT) lesions were created in the forelimb of six horses and injected with 10 × 10(6) MSCs labeled with superparamagnetic iron oxide nanoparticles (SPIOs) under ultrasound guidance. Assays were performed to confirm that there were no significant changes in cell viability, proliferation, migration, or trilineage differentiation due to the presence of SPIOs...
2016: Stem Cells International
Shao-Yong Xu, Shu-Fen Li, Guo-Xin Ni
BACKGROUND Although tendinopathy is common, its underlying pathogenesis is poorly understood. This study aimed to investigate the possible pathogenesis of tendinopathy. MATERIAL AND METHODS In this study, a total of 24 rats were randomly and evenly divided into a control (CON) group and a strenuous treadmill running (STR) group. Animals in the STR group were subjected to a 12-week treadmill running protocol. Subsequently, all Achilles tendons were harvested to perform histological observation or biochemical analyses...
October 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Su Young Kim, Ji Hyun Cheon, Won Jun Seo, Geun Young Yang, Yun Mi Choi, Kyung Hoon Kim
The musculoskeletal system is mainly composed of the bones, muscles, tendons, and ligaments, in addition to nerves and blood vessels. The greatest difficulty in an ultrasonographic freeze-frame created by the examiner is recognition of the targeted structures without indicators, since an elephant's trunk may not be easily distinguished from its leg. It is not difficult to find descriptive ultrasonographic terms used for educational purposes, which help in distinguishing features of these structures either in a normal or abnormal anatomic condition...
October 2016: Korean Journal of Pain
Xinning Li, Antonio Cusano, Josef Eichinger
Shoulder dislocations are a common injury, with anterior shoulder dislocation among male patients being the most common presentation. A patient with recurrent shoulder instability, anterior-superior escape, and chronic subscapularis tendon rupture following multiple shoulder stabilization surgeries presents the surgeon with a complex and challenging case. This report describes a 40-year-old man with an extensive left shoulder history that included a failed Latarjet procedure, an irreparable, chronic subscapularis tear with grade 4 Goutallier fatty infiltration, and associated anterior-superior escape...
October 13, 2016: Orthopedics
William T Wilson, Graeme P Hopper, Paul A Byrne, Gordon M MacKay
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction using tendon or ligament autograft is the gold standard surgical treatment for acute ruptures; however, this is still associated with subsequent problems and variable outcomes. Renewed interest in healing of injured ACL tissue has led to new surgical repair techniques. CASE DESCRIPTION: We report the case of one of the first patients to undergo this novel procedure of ACL repair with internal bracing. An internal brace is a bridging concept using braided suture tape and knotless bone anchors to reinforce ligament strength...
October 6, 2016: Surgical Technology International
Jorge Delgado, Diego Jaramillo, Nancy A Chauvin
Increased physical activity in childhood has resulted in a large number of sports-related injuries. Although there is overlap between the sports-related injuries seen in pediatric and adult patients, important differences exist in the injury patterns of pediatric patients. These differences are related to the continuous changes in the developing skeleton and its relationship with adjacent soft tissues. The imbalance in strength between the growing bones and the nearby tendons and ligaments makes the bones prone to acute and chronic injuries...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Mesut Mutluoglu, Gunalp Uzun, Michael Bennett, Peter Germonpré, David Smart, Daniel Mathieu
Diabetic foot ulcers (DFUs) are one of the most common indications for hyperbaric oxygen treatment (HBOT). The role of HBOT in DFUs is often debated. Recent evidence based guidelines, while recommending its use, urge further studies to identify the patient subgroups most likely to benefit from HBOT. A recent study in Diabetes Care aimed to assess the efficacy of HBOT in reducing the need for major amputation and improving wound healing in patients with chronic DFUs. In this study, patients with Wagner grade 2-4 diabetic foot lesions were randomly assigned to have HBOT (30 sessions/90 min/244 kPa) or sham treatment (30 sessions/90 min/air/125 kPa)...
September 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Laurent Obert, Christelle Peyron, Etienne Boyer, Gauthier Menu, François Loisel, Sébastien Aubry
INTRODUCTION: The shoulder arthroplasty brings satisfaction to patients in terms of quality of life and indolence. However whether anatomic implant or reverse, it does not escape from the loosening of the glenoid component. Moreover, optimal implantation is required to ensure the functional outcome without shortening of the arm. The purpose of this study is obtain CT scan evaluation of the glenoid bone stock in order to optimize glenoid component implantation and obtain a reference to determine optimal humeral component placement in case of humeral proximal fracture...
2016: SICOT-J
David Wasylynko
OBJECTIVE: To present a case of chronic elbow pain as a result of a hidden underlying osteochondral defect. CLINICAL FEATURES: A 17-year old baseball player presented with chronic lateral elbow pain. Examination revealed swelling of the elbow with signs of possible ligament, muscle, and tendon injury. DIAGNOSIS AND TREATMENT: Although there was apparent soft-tissue injury, the elbow swelling created immediate suspicion of a more serious underlying condition...
September 2016: Journal of the Canadian Chiropractic Association
Chad M Fortun, Ivan Wong, Joseph P Burns
Failed arthroscopic soft-tissue stabilization and anterior glenoid bone loss have been shown to have high failure rates after standard arthroscopic stabilization techniques. For patients with recurrent glenohumeral instability, the Bristow-Latarjet procedure is currently the standard of care. It is predominantly performed through an open deltopectoral approach but has recently been described arthroscopically. Although providing excellent clinical outcomes, the Bristow-Latarjet procedure violates the subscapularis muscle, has a steep learning curve with a high complication rate, and permanently changes the anterior shoulder anatomy, making any future revision surgery more challenging...
August 2016: Arthroscopy Techniques
Shailesh Agarwal, Shawn Loder, David Cholok, John Li, Chris Breuler, James Drake, Cameron Brownley, Joshua Peterson, Shuli Li, Benjamin Levi
: : Trauma-induced heterotopic ossification (HO) occurs after severe musculoskeletal injuries and burns, and presents a significant barrier to patient rehabilitation. Interestingly, the incidence of HO significantly increases with repeated operations and after resection of previous HO. Treatment of established heterotopic ossification is challenging because surgical excision is often incomplete, with evidence of persistent heterotopic bone. As a result, patients may continue to report the signs or symptoms of HO, including chronic pain, nonhealing wounds, and joint restriction...
October 5, 2016: Stem Cells Translational Medicine
Kirsten Legerlotz, Robert Marzilger, Sebastian Bohm, Adamantios Arampatzis
PURPOSE: To understand the mechanisms for the effects of resistance training on functional parameters, and to assess the injury risk of the involved tissues, it is necessary to examine the underlying morphological and structural changes of the respective tissues. METHODS: The presented information on physiological adaptations have been deduced from cross-sectional studies comparing youth athletes with controls and children with adults as well as from longitudinal studies examining the effects of resistance training in untrained children and adolescents and in youth athletes...
October 5, 2016: Pediatric Exercise Science
Reza Shahryar-Kamrani, Hossein Saremi, Leila Oryadi-Zanjani, Mohammad Hossein Nabian, Azita Amoozadeh, Amir Hossein Moradi
BACKGROUND: Evolving wrist arthroscopy requires creating new portals, and creating portals reciprocally leads to increased indications for arthroscopic wrist procedures. To facilitate access to the lunate bone and fossa for new arthroscopic procedures, a new portal was used. This is a cadaveric study of this portal. OBJECTIVES: In this cadaveric study, we evaluated a portal in wrist arthroscopy for procedures involving the lunate bone and lunate fossa. MATERIALS AND METHODS: Seventeen wrists from 10 fresh cadavers were included in this study...
July 2016: Iranian Red Crescent Medical Journal
Mathieu Spriet, Pablo Espinosa, Andre Z Kyme, Pavel Stepanov, Val Zavarzin, Stephen Schaeffer, Scott A Katzman, Larry D Galuppo, David Beylin
Positron emission tomography (PET) is a highly sensitive, noninvasive imaging technique for quantifying biological functions of tissues. However, at the time of this study, PET imaging applications had not been reported in the horse. The aim of this exploratory study was to determine whether a portable high-resolution PET scanner could be used to image the equine distal limb. Images of the front feet and fetlocks of three research horses, with known lesions localized to the distal front limbs, were acquired under general anesthesia after administration of (18) F-fluorodeoxyglucose ((18) F-FDG), with doses ranging from 1...
October 4, 2016: Veterinary Radiology & Ultrasound
Katarzyna Siennicka, Aleksandra Zolocinska, Karolina Stepien, Natalia Lubina-Dabrowska, Marzena Maciagowska, Ewa Zolocinska, Anna Slysz, Renata Piusinska-Macoch, Slawomir Mazur, Urszula Zdanowicz, Robert Smigielski, Adam Stepien, Zygmunt Pojda
Although mesenchymal stem cells are used in numerous clinical trials, the safety of their application is still a matter of concern. We have analysed the clinical results of the autologous adipose-derived stem cell treatment (stromal vascular fraction (SVF) containing adipose-derived stem cells, endothelial progenitors, and blood mononuclear cells) for orthopedic (cartilage, bone, tendon, or combined joint injuries) and neurologic (multiple sclerosis) diseases. Methods of adipose tissue collection, cell isolation and purification, and resulting cell numbers, viability, and morphology were considered, and patient's age, sex, disease type, and method of cell administration (cell numbers per single application, treatment numbers and frequency, and methods of cell implantation) were analysed and searched for the unwanted clinical effects...
2016: Stem Cells International
Ezequiel Ernesto Zaidenberg, Pablo Roitman, Gerardo Luis Gallucci, Jorge Guillermo Boretto, Pablo De Carli
Background: In recent years the use of biodegradable suture anchors for treating tendon and ligament pathology in hand surgery became popular. These materials are biocompatible, radiolucent, and load sharing, as they incrementally transfer load to surrounding bone during the resorption process. Despite these numerous advantages, polyglycolic (PGA) and poly-L-lactic acid (PLLA) have become a problem because of the potential risk for foreign body reactions. Methods: This article presents a case of an intraosseous foreign body reaction and massive osteolysis of the proximal carpal after dorsal lunate dislocation repair with bioabsorbable suture anchors...
September 2016: Hand: Official Journal of the American Association for Hand Surgery
I-Han Chiang, Chia-Chun Wu, Shyi-Gen Chen, Chih-Hsin Wang
Soft tissue defects exposing the patellar tendon or bone are common in patients who have experienced trauma or implant infection. The purpose of this article is to present our experience of six patients who underwent reconstruction of soft tissue defects of the knee using a pedicled medial sural perforator flap. Between November 2013 and November 2015, six patients who presented with a soft tissue defect overlying the knee were admitted to our hospital. After adequate debridement or wide excision of the tumour, these patients underwent pedicled medial sural perforator flap placement to resurface the complex soft tissue defects and to provide a gliding surface for the exposed patellar tendon...
October 3, 2016: International Wound Journal
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