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Xing Chen, Detlef Wolf, Juliane Siebourg-Polster, Christian Czech, Ulrike Bonati, Dirk Fischer, Omar Khwaja, Martin Strahm
Progressive and irreversible muscle atrophy characterizes Spinal Muscular Atrophy (SMA) and other similar muscle disorder diseases. Objective assessment of muscle functions is an essential and important, although challenging, prerequisite for successful clinical trials. Current clinical rating scales restrain the movement abnormalities to certain predefined coarse-grained individual items. The Kinect 3-D sensor has emerged as a low-cost and portable motion sensing technology used to capture and track people's movement in many medical and research fields...
February 12, 2018: Journal of Visualized Experiments: JoVE
Eugene T Ek, Kemble K Wang
The lateral collateral ligament (LCL) complex of the elbow plays a crucial role in the stability of the elbow joint, especially to varus loads. Deficiency of particularly the lateral ulnar collateral component of the LCL can lead to chronic posterolateral rotatory instability, which can be functionally debilitating and can lead to a rapid onset of early degenerative arthritis. Commonly, in the setting of acute rupture of the LCL, the ligament is repaired using an open technique with suture anchor fixation to the lateral epicondyle insertion point...
February 2018: Arthroscopy Techniques
Roberto Colombo, Alessandra Mazzone, Carmen Delconte, Fabrizio Pisano
Proprioception plays a fundamental role in maintaining posture and executing movement, and the quantitative evaluation of proprioceptive deficits in poststroke patients is important. But currently it is not widely performed due to the complexity of the evaluation tools required for a reliable assessment. The aims of this pilot study were to (a) develop a system architecture for upper limb evaluation and training of proximal and distal sense of position in the horizontal plane and (b) test the system in healthy and pathological subjects...
2018: Computational Intelligence and Neuroscience
Mikkel Thøgersen, John Hansen, Lars Arendt-Nielsen, Herta Flor, Laura Petrini
The purpose of the present study was to assess changes in body perception when visual feedback was removed from the hand and arm with the purpose of resembling the visual deprivation arising from amputation. The illusion was created by removing the visual feedback from the participants' own left forearm using a mixed reality (MR) and green screen environment. Thirty healthy persons (15 female) participated in the study. Each subject experienced two MR conditions, one with and one without visual feedback from the left hand, and a baseline condition with normal vision of the limb (no MR)...
March 15, 2018: Behavioural Brain Research
Ida K Fox, Christine B Novak, Emily M Krauss, Gwendolyn M Hoben, Craig Zaidman, Rimma Ruvinskaya, Neringa Juknis, Anke C Winter, Susan E Mackinnon
BACKGROUND: Nerve transfer surgery to restore upper extremity (UE) function in cervical spinal cord injury (SCI) is novel and may transform treatment. Determining candidacy even years post-SCI is ill-defined and deserves investigation. OBJECTIVE: To develop a diagnostic algorithm, focusing on electrodiagnostic studies (EDX), to determine eligibility for nerve transfer surgery. DESIGN: Retrospective descriptive case series SETTING: Tertiary university-based institution PATIENTS: Individuals with cervical SCI (n = 45) METHODS: The electronic medical records of people referred to the Plastic and Reconstructive Surgery UE Surgery in SCI clinic from 2010-2015 were reviewed...
March 15, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
Patrícia T Goldenstein, Precil D Neves, Bruno E Balbo, Rosilene M Elias, Alexandre C Pereira, Luiz F Onuchic, Harald Jüppner, Vanda Jorgetti, Hugo Abensur, Rosa Maria Moysés
Primary tumoral calcinosis is a rare autosomal recessive disorder characterized by ectopic calcified tumoral masses. Mutations in 3 genes (GALNT3, FGF23, and KL) have been linked to this human disorder. We describe a case of a 28-year-old man with a history of painful firm masses over his right and left gluteal region, right clavicle region, knees, and left elbow. Biochemical analysis disclosed hyperphosphatemia (phosphate, 9.0 mg/dL) and normocalcemia (calcium, 4.8 mg/dL), with normal kidney function and fractional excretion of phosphate of 3%...
March 14, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Alfonso Vaquero-Picado, Joaquín Núñez de Armas, Samuel Antuña, Raúl Barco
BACKGROUND AND HYPOTHESIS: Radial head arthroplasty (RHA) is a reliable procedure to manage complex injuries of the elbow, but complications due to inadequate sizing have been observed. Radiocapitellar morphometry has been studied widely, but RHA preoperative planning is not yet well defined. We hypothesized that specific morphologic parameters of the radiocapitellar joint measured with simple clinical software for radiographic analysis could be useful tools for clinical practice to predict RHA size preoperatively...
March 13, 2018: Journal of Shoulder and Elbow Surgery
Anne Deblock-Bellamy, Charles Sebiyo Batcho, Catherine Mercier, Andreanne K Blanchette
BACKGROUND: Proprioceptive sense plays a significant role in the generation and correction of skilled movements and, consequently, in most activities of daily living. We developed a new proprioception assessment protocol that enables the quantification of elbow position sense without using the opposite arm, involving active movement of the evaluated limb or relying on working memory. The aims of this descriptive study were to validate this assessment protocol by quantifying the elbow position sense of healthy adults, before using it in individuals who sustained a stroke, and to investigate its test-retest reliability...
March 16, 2018: Journal of Neuroengineering and Rehabilitation
Katsuaki Kanbe
BACKGROUND: The purpose of this study was to investigate the long-term clinical outcome and its related factors regarding the severity of adhesion of CH ligament over long head of biceps (LHB) after shoulder arthroscopic capsular release for frozen shoulder with technical points in 255 patients. METHODS: We performed arthroscopic capsular release for frozen shoulder in 267 shoulders of 255 patients, 112 males and 143 females, with mean age of 56.39 years, mean disease duration periods of 0...
March 16, 2018: Journal of Orthopaedic Surgery and Research
Robert W Irwin, Jeffrey Smith, S Barry Issenberg
The Accreditation Council for Graduate Medical Education (ACGME) and the American Board of Physical Medicine and Rehabilitation (ABPMR) developed milestones for evaluation of resident physicians that include proper musculoskeletal ultrasound (MSUS) examination of major joints. To date, there have been no published data demonstrating acquisition and retention of these skills and correlation with the milestone evaluation. The investigators developed and implemented a curriculum in musculoskeletal ultrasound examination for Physical Medicine and Rehabilitation (PM&R) residents at a large academic medical center...
March 15, 2018: American Journal of Physical Medicine & Rehabilitation
Tomas Madura, Kazuteru Doi, Yasunori Hattori, Sotetsu Sakamoto, Takashi Shimoe
The purpose of this study was to evaluate long-term outcomes of the free functioning gracilis transfer in children with traumatic total brachial plexus palsy. We used the free functioning gracilis transfer to reconstruct elbow flexion and prehension in 17 children with a mean age of 13.4 years (range 3-17) who were followed-up over a mean period of 6 years (range 2-16). The transferred gracilis delivered a stable elbow flexion with a useful power, as well as reconstructed active finger motion. In 3-11-year-old patients we noted a tendency towards developing a progressive flexion contracture of the elbow...
January 1, 2018: Journal of Hand Surgery, European Volume
Yoichi Kaizu, Hideomi Watanabe, Takehiko Yamaji
[Purpose] The purpose of this study was to provide information regarding the knowledge of mechanical principles related to the load applied to the shoulder and elbow during the pitching motion. [Subjects and Methods] The three-dimensional kinematics of body segments were measured in 19 amateur baseball players with a VICON motion capture system. The correlation between maximum shoulder internal torque, maximum elbow varus torque, and simultaneous kinematic parameters including joint angular acceleration and ball acceleration was investigated...
February 2018: Journal of Physical Therapy Science
Young Hak Roh, Young Do Koh, Jong Oh Kim, Kyu Ho Lee, Hyun Sik Gong, Goo Hyun Baek
BACKGROUND: Postoperative pillar pain (deep-seated wrist pain worsened by leaning on the heel of the hand) sometimes occurs after carpal tunnel release (CTR), leading to weakness in the hand and delayed return to work. Increased pain sensitivity has been found to be associated with worse symptoms and poorer treatment response in a number of chronic musculoskeletal conditions, but few studies have investigated the association of pain sensitization with pillar pain after CTR. QUESTIONS/PURPOSES: (1) Is preoperative pain sensitization in patients with carpal tunnel syndrome (CTS) associated with increased severity of pillar pain after open CTR? (2) What other demographic, electrophysiological, or preoperative clinical characteristics are associated with pillar pain after CTR? METHODS: Over a 35-month period, one surgeon performed 162 open carpal tunnel releases...
April 2018: Clinical Orthopaedics and related Research
Christopher L Camp, Andrea M Spiker, John M Zajac, Dave Pearson, Alec M Sinatro, Joshua S Dines, Anil S Ranawat, Struan H Coleman
INTRODUCTION: The relationship of hip range of motion (ROM) to shoulder, elbow, abdominal, and back injuries remains undefined. METHODS: We assessed hip ROM on players reporting to Major League Spring Training for an organization over six seasons (2010 to 2015). Hip ROM was correlated with player abdominal, back, shoulder, and elbow injury status for those seasons using multivariate binomial logistic regression analysis. RESULTS: A total of 258 player-seasons (129 pitchers and 129 position players) resulted in 20 back and 35 abdominal injuries across all players and 28 elbow and 25 shoulder injuries in pitchers...
March 14, 2018: Journal of the American Academy of Orthopaedic Surgeons
Christopher L Camp, Stan Conte, John D'Angelo, Stephen A Fealy, Christopher S Ahmad
BACKGROUND: In recent years, there has been a dramatic rise in the annual number of ulnar collateral ligament (UCL) reconstructions performed in amateur baseball pitchers. Accordingly, increasing numbers of players are entering professional baseball having already undergone the procedure; however, the effect of prior UCL reconstruction on future success remains unknown. PURPOSE: (1) To provide an epidemiologic report on baseball players who undergo UCL reconstruction before being selected in the Major League Baseball (MLB) Draft, (2) to define the outcomes in terms of statistical performance, and (3) to compare these results with those of matched controls (ie, non-UCL reconstruction)...
March 1, 2018: American Journal of Sports Medicine
Julia P Slopsema, John M Boss, Lane A Heyboer, Carson M Tobias, Brooke P Draggoo, Kathleen E Finn, Payton J Hoff, Katharine H Polasek
Background: Electrical stimulation is increasingly relevant in a variety of medical treatments. In this study, surface electrical stimulation was evaluated as a method to non-invasively target a neural function, specifically natural sensation in the distal limbs. Method: Electrodes were placed over the median and ulnar nerves at the elbow and the common peroneal and lateral sural cutaneous nerves at the knee. Strength-duration curves for sensation were compared between nerves...
2018: Open Biomedical Engineering Journal
Yoshihiko Satake, Yuji Tomori, Takuya Sawaizumi, Mitsuhiko Nanno, Norie Kodera, Shinro Takai
Medial epicondyle fractures of the humerus account for 11%-20% of all elbow injuries in children. Although intra-articular incarceration of the medial epicondyle occurs in 5%-18% of medial epicondyle fractures associated with an elbow dislocation, the mechanism of intrusion of the fracture fragment is unknown. We report a case of an irreducible elbow fracture and dislocation due to incarceration of the medial epicondyle fragment of the humerus, classified as a Watson-Jones type 3 fracture of the medial epicondyle, and present the mechanism of the intra-articular incarceration of the medial epicondyle fragment...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Grace E Martin, Heng He, Amy T Makley, Timothy A Pritts, Joel B Elterman, Jay A Johannigman, Michael D Goodman
BACKGROUND: Penetrating injuries to the extremity proximal to the elbow or knee are anatomic criteria for full trauma team activation by the American College of Surgeon's Committee on Trauma standards. This criterion lacks objective evidence-based support. Overtriage of trauma team activation may result in excessive costs and resource burden at trauma centers. We hypothesized that full trauma team activation for penetrating injuries to the proximal extremities by anatomic criteria alone may lead to significant overtriage...
March 12, 2018: Journal of Trauma and Acute Care Surgery
Christopher Looze, Eric Strauss, Laith Jazrawi
Shoulder and elbow injuries have been described in baseball players as early as the 1940s. Ulnar collateral ligament (UCL) tears have been recognized as a significant source of disability for baseball players and have been seen in increasing frequency as training regimens and level of play have become more intense and rigorous. Our understanding and treatment of these injuries have also evolved over time. This article summarizes the evolution of the treatment of UCL tears and discusses future directions for the treatment and prevention of these injuries...
March 2018: Bulletin of the Hospital for Joint Diseases
Dominique J Griffon, Ayman A Mostafa, Laurent Blond, David J Schaeffer
OBJECTIVE: To characterize radioulnar incongruence (RUI) in large dogs with medial coronoid disease (MCD) and determine the agreement between radiography, computed tomography (CT), and arthroscopy. STUDY DESIGN: Prospective observational case series. ANIMALS: Twenty-four large-breed dogs under 3 years of age with confirmed MCD. METHODS: MCD and incongruence were evaluated by radiographs and CT. RUI was measured along the ulnar commissure, mid-body, and apex of the medial coronoid process (MCP) by CT and arthroscopy...
March 13, 2018: Veterinary Surgery: VS
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