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Joint restriction

Felix Porschke, Marc Schnetzke, Stefan Studier-Fischer, Paul Alfred Gruetzner, Thorsten Guehring
BACKGROUND: Considering the epidemiology of acromioclavicular (AC) dislocation related to young and active patients, the impact on working capacity is highly relevant. The purpose of this study was to determine the capacity of work and time to return to work (RTW) after AC joint stabilization. We hypothesized that manual working patients show more restrictions returning to work. METHODS: In this retrospective case series, pre- and posttraumatic working capacity of 54 patients (FU-rate 80...
February 12, 2019: Journal of Orthopaedic Surgery and Research
Herbert Stimmer, Lucas Ritschl, Carolin Goetz, Andreas Kolk, Benedikt Hofauer, Markus Wirth, Andreas Knopf, Armin Ott, Klaus-Dietrich Wolff
PURPOSE:  The purpose of the present study was to investigate the degree and clinical relevance of synovitis in craniomandibular dysfunction. MATERIALS AND METHODS:  In total, 140 temporomandibular joints were examined using a 3 T MRI scanner. Quantitative analysis of synovial enhancement was performed and interrelated with arthrosis deformans, degenerative disc disease, joint effusion, bone marrow edema and restriction of motion. RESULTS:  We found a statistically high and significant correlation between the degenerative changes as mentioned above and the intensity of synovial enhancement...
February 12, 2019: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Rachel G Grashow, Andrea L Roberts, Ross Zafonte, Alvaro Pascual-Leone, Herman Taylor, Aaron Baggish, Lee Nadler, Theodore K Courtney, Ann Connor, Marc G Weisskopf
Studies of professional American football players have shown that football-related activities lead to acute injuries and may have long-term adverse health outcomes including osteoarthritis, neurocognitive impairment, and cardiovascular disease. However, the full complement of what constitutes professional football exposure has yet to be effectively articulated. Most likely, professional football exposure encompasses a multifaceted array of experiences including head impacts and joint stresses, long-term pain medication use, dietary restrictions, and strenuous training regimens...
February 2019: Orthopaedic Journal of Sports Medicine
Susan Lilly, Gesine H Seeber, Michael P Smith, Janna M McGaugh, C Roger James, Jean-Michel Brismxsée, Phillip S Sizer
Background: Anterior knee pain during knee extension may be related to a meniscal movement restriction and increased meniscal load during function. One method of treatment involves the use of manual posterior mobilization of the tibia to specifically target the meniscotibial interface of the knee joint. Purpose: The purpose of this study was to measure motion at a cadaveric medial meniscus anterior horn during a posterior tibial mobilization. Study Design: Prospective, multifactorial, repeated-measures laboratory study...
February 2019: International Journal of Sports Physical Therapy
Vito Crincoli, Maria Grazia Anelli, Eleonora Quercia, Maria Grazia Piancino, Mariasevera Di Comite
Aims: Temporomandibular disorders (TMD) represent a heterogeneous group of inflammatory or degenerative diseases of the stomatognatic system, with algic and/or dysfunctional clinical features involving temporomandibular joint (TMJ) and related masticatory muscles. Rheumatoid Arthritis (RA) is an autoimmune polyarthritis characterized by the chronic inflammation of synovial joints and oral implications such as hyposalivation, difficulty in swallowing and phoning, feeling of burning mouth, increased thirst, loss of taste or unpleasant taste and smell, dental sensitivity...
2019: International Journal of Medical Sciences
Assem A Sultan, Linsen T Samuel, Anton Khlopas, Nipun Sodhi, Manoshi Bhowmik-Stoker, Antonia Chen, Fabio Orozco, Frank Kolisek, Ormonde Mahoney, Langan Smith, Arthur Malkani, Robert M Molloy, Michael A Mont
INTRODUCTION: Despite the demonstrated success of modern total knee arthroplasty (TKA), it remains a procedure that involves sophisticated preoperative planning and meticulous technique to reconstruct the mechanical axis, achieve ideal joint balance, and restore maximal range-of-motion (ROM). Recently, robotic-arm assisted TKAs have emerged as a promising new technology offering several technical advantages, and it is achieving excellent radiological results, including establishing the posterior condylar offset ratio (PCOR) and the Insall-Salvati Index (ISI)...
February 11, 2019: Surgical Technology International
Yufeng Zhou, Kai Yang
INTRODUCTION: Surgery or trauma may induce extensive arthrofibrosis around joints and tendon for the restrictive range of motion. Although some approaches were proposed, this problem is not solved satisfactorily. Extracorporeal shock wave therapy (ESWT) has been used for orthopedic, musculoskeletal, and fibrotic disorders. Whether it could prevent the formation of arthrofibrosis during the joint repair is unknown. METHODS: Intra-articular adhesions were created in the right knee of the rabbit by cortical bone shaving and subsequent cast immobilization...
February 2, 2019: Injury
Arnd F Viehöfer, Magdalena Vich, Stephan H Wirth, Norman Espinosa, Roland S Camenzind
Restriction of greater toe dorsiflexion without degeneration of the first metatarsophalangeal joint is defined as hallux limitus. We assume that in hallux limitus the limitation of greater toe dorsiflexion takes place in the terminal stance phase because of massive tightening of the calf and plantar structures. The current study investigated the role of a tight plantar fascial structure in impairing dorsiflexion of the greater toe. For the purpose of the study, 7 lower limbs from Thiel-fixated human cadavers were evaluated...
February 7, 2019: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Angelos Karatsidis, Moonki Jung, H Martin Schepers, Giovanni Bellusci, Mark de Zee, Peter H Veltink, Michael Skipper Andersen
Inverse dynamic analysis using musculoskeletal modeling is a powerful tool, which is utilized in a range of applications to estimate forces in ligaments, muscles, and joints, non-invasively. To date, the conventional input used in this analysis is derived from optical motion capture (OMC) and force plate (FP) systems, which restrict the application of musculoskeletal models to gait laboratories. To address this problem, we propose the use of inertial motion capture to perform musculoskeletal model-based inverse dynamics by utilizing a universally applicable ground reaction force and moment (GRF&M) prediction method...
February 5, 2019: Medical Engineering & Physics
David J Graham, Harry D S Clitherow, Harvinder P Singh, Elizabeth C Clarke, Belinda J Smith, Michael A Tonkin
PURPOSE: To quantify the amount and pattern of finger range of motion loss at the metacarpophalangeal (MCP), proximal interphalangeal (PIP), and distal interphalangeal (DIP) joints with a simulated extensor tendon adhesion at the level of the proximal phalanx or metacarpal. METHODS: In 10 cadaveric specimens, traction sutures were placed in the forearm extensor digitorum communis and flexor digitorum profundus tendons of the middle and ring fingers. Active motion was simulated by suspending weights from the traction sutures via pulleys...
February 4, 2019: Journal of Hand Surgery
Dowglas Fernando Magalhães de Sousa, Marcela Letícia Leal Gonçalves, Fabiano Politti, Renan Didier de Paula Lovisetto, Kristianne Porta Santos Fernandes, Sandra Kalil Bussadori, Raquel Agnelli Mesquita-Ferrari
INTRODUCTION: Temporomandibular disorder (TMD) is considered the main cause of orofacial pain of non-dental origin, and a public health problem. The symptomatology is muscular and/or articular pain, restriction of the mandibular range of motion, and changes in the mandibular movement pattern. Due to its complexity there are already treatments using various forms of therapy. Photobiomodulation using light sources, such as low-level laser or light emitting diodes (LED), with different wavelengths, in a single or combined form, allows one more therapeutic resource to be explored...
February 2019: Medicine (Baltimore)
Jeremy Goverman, Waverley He, Geoffrey Martello, Ann Whalen, Edward Bittner, John Schulz, Nicole Gibran, David Herndon, Oscar Suman, Karen Kowalske, Walter J Meyer, Colleen Ryan, Jeffrey Schneider
INTRODUCTION: Postburn scarring is common, but the risk factors, natural history, and consequences of such scars are still poorly understood. This study aims to describe the frequency of scar-related morbidity for up to 2 years after injury and to analyze the impact of burn scars on long-term functional, psychosocial, and reintegration outcomes. METHODS: Analysis was conducted on data collected between January 2006 and May 2014 from 960 patients (2440 anatomic burn sites) using the Burn Model System (BMS) database...
March 2019: Annals of Plastic Surgery
Franz Hilber, Christian Pfeifer, Clemens Memmel, Johannes Zellner, Peter Angele, Michael Nerlich, Maximilian Kerschbaum, Daniel Popp, Florian Baumann, Werner Krutsch
INTRODUCTION: Patellar dislocation and rupture of the medial patellofemoral ligament (MPFL) are frequently seen in daily orthopedic practice. Besides initial non-surgical treatment, surgery and subsequent rehabilitation are crucial for restoring stability in the femoropatellar joint. This study investigated current rehabilitation strategies after patellar dislocation because knowledge on this topic has been severely limited so far. MATERIALS AND METHODS: The current rehabilitation protocols of 42 orthopedic and trauma surgical institutions were analyzed regarding their recommendations on weight bearing, range of motion (ROM), and use of movement devices and orthosis...
January 17, 2019: Injury
Etty Kruzel-Davila, Jasmin Divers, Gregory B Russell, Zipi Kra-Oz, Moran Szwarcwort Cohen, Carl D Langefeld, Lijun Ma, Douglas S Lyles, Pamela J Hicks, Karl L Skorecki, Barry I Freedman
Purpose: African Americans who shed JC polyoma virus (JCV) in their urine have reduced rates of non-diabetic chronic kidney disease (CKD). The present study assessed associations between urinary JCV and urine BK polyomavirus (BKV) with CKD in African Americans with diabetes mellitus. Methods: African Americans with diabetic kidney disease and controls lacking nephropathy from the Family Investigation of Nephropathy and Diabetes Consortium (FIND) and African American-Diabetes Heart Study (AA-DHS) had urine tested for JCV and BKV using quantitative polymerase chain reaction...
January 30, 2019: Journal of Clinical Endocrinology and Metabolism
Magdalena Massalska, Ewa Kuca-Warnawin, Iwona Janicka, Magdalena Plebanczyk, Dariusz Pawlak, Tomas Dallos, Anna Olwert, Anna Radzikowska, Pawel Maldyk, Ewa Kontny, Wlodzimierz Maslinski
OBJECTIVE: Rheumatoid arthritis (RA) is characterized by expansion of fibroblast-like synoviocytes (FLS) in inflamed joints and activation of lymphocytes. Tryptophan (trp) is an essential amino acid indispensable for the biosynthesis of proteins and critical for survival of lymphocytes. Indoleamine 2,3-dioxygenase (IDO) that initiates the degradation of trp and tryptophanyl-tRNA synthetase (TTS) essential for tryptophan synthesis, regulate trp bioavailability. Here, we tested the hypothesis that triggered by cytokines, enhanced IDO activity modulate regulatory function of otherwise non-tolerogenic FLS isolated from RA patients...
February 4, 2019: Immunopharmacology and Immunotoxicology
Xing Tang, Congyi Wu, Lin Gan, Tian Zhang, Tingting Zhou, Jin Huang, Hao Wang, Changsheng Xie, Dawen Zeng
Flexible pressure sensors as electronic skins have attracted wide attention to their potential applications for healthcare and intelligent robotics. However, the tradeoff between their sensitivity and pressure range restricts their practical applications in various healthcare fields. Herein, a cost-effective flexible pressure sensor with an ultrahigh sensitivity over an ultrawide pressure-range is developed by combining a sandpaper-molded multilevel microstructured polydimethylsiloxane and a reduced oxide graphene film...
February 4, 2019: Small
Saraswathy Gnanasundaram, Priyadharshini Ramalingam, Bhabendra Nath Das, Vijay Viswanathan
Background Increasing prevalence of diabetic foot ulcer (DFU) and subsequent foot amputation in persons with type 2 diabetic neuropathy is a well known fact. The present study was aimed to identify the initial risk marker for DFU. Methods Dynamic plantar pressure analysis was done for persons with type 2 diabetes mellitus (T2DM) without neuropathy (D), patients with diabetic neuropathy (DN) with normal foot profile and healthy persons with normal foot profile (C). Results The data showed a significant difference in dynamic peak plantar pressure between C and DN (P = 0...
January 26, 2019: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
José Ricardo Magliocco Ceroni, Gustavo Marquezani Spolador, Diana Salazar Bermeo, Rachel Sayuri Honjo, Luiz Antonio Nunes de Oliveira, Débora Romeo Bertola, Chong Ae Kim
OBJECTIVE: The present study aims to provide orientation for clinicians and radiologists to recognize the most prevalent findings leading to diagnosis in mucolipidosis from a description of the natural history of five Brazilian cases. MATERIALS AND METHODS: We conducted an observational and retrospective study of five patients with clinical and radiological diagnosis of mucolipidosis. Clinical evaluation consisted of information obtained from records and including physical, neurologic, and dysmorphic evaluations...
February 2, 2019: Skeletal Radiology
Kuanfang He, Siwen Xiao, Xuejun Li
The stockwell transform (S transform) is used to conduct analysis and processing of the Acoustic Emission (AE) signal in the welding process. The multi dimension instantaneous frequency information of AE signal in the joint time frequency distribution is obtained to analyze and recognize the welding structure state. The changing paces of window functions under different parameters are analyzed, and the parameters of S transform are determined to realize the optimal adaptive multi resolution and time frequency clustering...
January 2019: Journal of the Acoustical Society of America
Di Chen, Xinjian Li, Jiamei Jin, Chongyuan Ruan
In this paper, a novel finger driven by single-mode piezoelectric actuator for a compact and high-precision robot hand is proposed. Three piezoelectric actuators are articulated by two sets of connecting elements to form the finger. The finger utilizes a single model of the piezoelectric actuator to generate friction force to drive the joint. Without the difficulty to adjust for the coincidence of modal frequencies, the design of the piezoelectric actuator has fewer restrictions on size and structure; thus, the finger has a compact structure...
January 2019: Review of Scientific Instruments
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