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continuous passive motion

Ying I Wang, Michael L Shuler
Microphysiological systems, also known as body-on-a-chips, are promising "human surrogates" that may be used to evaluate potential human response to drugs in preclinical drug development. Various microfluidics-based platforms have been proposed to interconnect different organ models and provide perfusion in mimicking the blood circulation. We have previously developed a pumpless platform that combines gravity-driven fluid flow and a rocking motion to create reciprocating flow between reservoirs for recirculation...
July 26, 2018: Lab on a Chip
Pedro Pessoa, Teresa Alves-da-Silva, Francisco Guerra-Pinto
PURPOSE: Dislocation of the proximal tibiofibular joint is a complex injury that is often overlooked or misdiagnosed. Surgical treatment is recommended for severe acute or for chronic symptomatic instability but there is still no evidence on the optimal reconstruction technique. The purpose of this study is to analyze the motion of the proximal tibiofibular joint after repair with a bicortical suspension device as compared to its normal kinematics. METHODS: Kinematic analysis of the proximal tibiofibular joint was performed during continuous passive motion of the knee and ankle in 7 whole body cadavers in a controlled laboratory study...
July 23, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Tanner L McGinn, Jennifer I Etcheson, Chukwuweike U Gwam, Nicole E George, Nequesha S Mohamed, Jaydev B Mistry, Ugochi Ananaba, Anil Bhave
Background: Despite the success of total knee arthroplasty (TKA), quadriceps strength can fail to recover. Active extension lag [quadriceps lag (Q-lag)] is a function of quadriceps weakness. Q-lag presents itself in patients who maintain a full passive range of motion (ROM), but are limited in active extension ROM. Few studies have evaluated the outcomes of post-TKA patients in the presence of post-operative Q-lag. Thus, this study aims to compare: (I) pain scores; and (II) rates of readmission to physical therapy (PT) in TKA patients with Q-lag of ≥15 degrees to patients without Q-lag...
June 2018: Annals of Translational Medicine
H Dobson, J Williams, J E Routly, D N Jones, J Cameron, A Holman-Coates, R F Smith
In studying the efficiency of a variety of methods for estrus detection in a large dairy herd, we suspected a definite sequence of estrus signs. Consequently, we observed a subset of animals continuously between 0400 and 2400 h, making a note of the precise timing and frequency of each sexual behavior. Sixteen Holstein-Friesian cows, >20 d postpartum, were equipped with motion activity-sensing neck collars and had milk progesterone profiles monitored simultaneously. The duration between the first and last observed estrus behavior was (mean ± SE) 14...
June 27, 2018: Journal of Dairy Science
Hisashi Ikutomo, Koutatsu Nagai, Keiichi Tagomori, Namika Miura, Norikazu Nakagawa, Kensaku Masuhara
BACKGROUND: Patients who undergo total hip arthroplasty (THA) have an increased risk of falls during the first year postoperatively. However, risk factors for falls after THA remain unclear. We investigated the relationship between gait abnormality and falls during the first year after THA. METHODS: We conducted a prospective cohort study of 286 patients with severe hip osteoarthritis who underwent THA and examined fall history during the first year postoperatively...
June 6, 2018: Journal of Arthroplasty
Nai-Jen Chang, Yanjmaa Erdenekhuyag, Pei-Hsi Chou, Chih-Jou Chu, Chih-Chan Lin, Ming-You Shie
BACKGROUND: Treating articular cartilage lesions is clinically challenging. However, whether the addition of autologous platelet-rich plasma (PRP) to bioimplants along with early rehabilitation exercise provides therapeutic effects and regenerates the osteochondral defect remains uninvestigated. HYPOTHESIS: The addition of PRP to a polylactic-co-glycolic acid (PLGA) scaffold along with continuous passive motion (CPM) in osteochondral defects may offer beneficial in situ microenvironment changes to facilitate hyaline cartilage and subchondral bone tissue repair...
July 2018: American Journal of Sports Medicine
Fahad N Alsunaydih, Jean-Michel Redoute, Mehmet R Yuce
Conventional radiological and endoscopic techniques utilizing long tubes were ineffective in visualizing the small bowel mucosa until the development of wireless capsule endoscopy (WCE). WCE is a revolutionary endoscopic technology that can diagnose the complete gastrointestinal tract. However, the existing capsule technologies are passive, and thus they cannot be navigated to or held in a specific location. The design of an active capsule will present the opportunity to move and stop a device at any targeted locations leading to numerous medical applications such as drug delivery or collecting tissue samples for examinations in the laboratory...
2018: IEEE Journal of Translational Engineering in Health and Medicine
Janosch Häberli, Benjamin Voumard, Clemens Kösters, Daniel Delfosse, Philipp Henle, Stefan Eggli, Philippe Zysset
PURPOSE: Dynamic intraligamentary stabilization (DIS) is a primary repair technique for acute anterior cruciate ligament (ACL) tears. For internal bracing of the sutured ACL, a metal spring with 8 mm maximum length change is preloaded with 60-80 N and fixed to a high-strength polyethylene braid. The bulky tibial hardware results in bone loss and may cause local discomfort with the necessity of hardware removal. The technique has been previously investigated biomechanically; however, the amount of spring shortening during movement of the knee joint is unknown...
June 1, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Karl F Orishimo, Sidse Schwartz-Balle, Timothy F Tyler, Malachy P McHugh, Benjamin B Bedford, Steven J Lee, Stephen J Nicholas
Background: Disproportionate end-range plantar flexion weakness, decreased passive stiffness, and inability to perform a heel rise on a decline after Achilles tendon repair are thought to reflect increased tendon compliance or tendon lengthening. Since this was first noted, we have performed stronger repairs and avoided stretching into dorsiflexion for the first 12 weeks after surgery. Hypothesis: Using stronger repairs and avoiding stretching into dorsiflexion would eliminate end-range plantar flexion weakness and normalize passive stiffness...
May 2018: Orthopaedic Journal of Sports Medicine
Nicholas T Kruse, William E Hughes, Darren P Casey
The aim of this study was to examine the independent contributions of joint range of motion (ROM), muscle fascicle length (MFL) and joint angular velocity on mechanoreceptor mediated central cardiovascular dynamics using passive leg movement (PLM) in humans. Twelve healthy males (age: 23±2 yrs, body mass index: 23.7 kg/m2 ) performed continuous PLM at various randomized joint angles ROM (0-50° vs. 50-100° vs. 0-100°) and joint angular velocities ('fast': 200°/s vs. 'slow': 100°/s). Measures of heart rate (HR), cardiac output (CO) and mean arterial pressure (MAP) were recorded during baseline and during 60 s of PLM...
May 17, 2018: Journal of Applied Physiology
Rachel Pedreira, Brian H Cho, Angela Geer, Ramon A DeJesus
Background: The difficulties in surgical treatment of pilon fractures of the finger include fragment reconstitution and posthealing stiffness. In adults, external fixation with traction and early active range of motion (AROM)/passive range of motion (PROM) during healing is considered necessary for avoiding joint stiffness and attaining realignment. The authors present a unique approach to pediatric pilon fractures that uses open reduction and multivector external fixation with delayed AROM/PROM...
April 2018: Journal of Hand and Microsurgery
Colleen Rex
No abstract text is available yet for this article.
May 2018: Nursing
K Kang, Q Geng, H T Xu, X Z Zheng, J T Dong, T Li, Z G Zhao, S J Gao
Objective: To evaluate the effect of promoting knee joint rehabilitation after total knee arthroplasty (TKA) with a rehabilitation training instrument NEO-GAIT. Methods: Sixty patients who received TKA from January 2017 to July 2017 in the Third Hospital of Hebei Medical University were randomly assigned to receive rehabilitation training with continuous passive motion (CPM) or NEO-GAIT with random number (30 cases in CPM group, included 8 males and 22 females; 30 cases in NEO-GAIT group, included 6 males and 24 females)...
April 17, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Sebastian Hardt, Matthias R G Schulz, Tilman Pfitzner, Georgi Wassilew, Hauke Horstmann, Emmanouil Liodakis, Thomas Sanjay Weber-Spickschen
PURPOSE: The purpose of this prospective randomized-controlled trial (RCT) was to evaluate if an app-based feedback-controlled active muscle training programme can be used to improve the outcome in the immediate postoperative period after total knee arthroplasty (TKA). METHODS: Sixty patients, with a median age of 65.9 years (range 45-84), awaiting primary TKA were randomized into a control and training group. Both groups followed an identical postoperative protocol...
March 27, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Patrick T Brennan, Jesus M Villa, Mark D Rossi, Marcos A Sanchez-Gonzalez, Carlos J Lavernia
Objective: To determine whether any strength, range of motion (ROM), or functional improvement exists in the adductor canal block (ACB) group after completion of inpatient rehabilitation and following the removal of the continuous block. Design: Retrospective cohort. Setting: Inpatient rehabilitation at discharge and outpatient orthopedic clinic for follow-up. Participants: Two hundred forty-six consecutive primary total knee arthroplasties (TKAs; N = 221 patients) performed by a single surgeon in a single institution between July 2013 and August 2015 for a diagnosis of osteoarthritis...
2018: Geriatric Orthopaedic Surgery & Rehabilitation
Olivier Bénichou, Vincent Démery, Alexis Poncet
Single-file transport, arising in quasi-one-dimensional geometries where particles cannot pass each other, is characterized by the anomalous dynamics of a probe, notably its response to an external force. In these systems, the motion of several probes submitted to different external forces, although relevant to mixtures of charged and neutral or active and passive objects, remains unexplored. Here, we determine how several probes respond to external forces. We rely on a hydrodynamic description of the symmetric exclusion process to obtain exact analytical results at long times...
February 16, 2018: Physical Review Letters
Ciaran Thrush, Tabitha J Porter, Brian M Devitt
PURPOSE: Anterior cruciate ligament (ACL) rupture commonly occurs in conjunction with articular cartilage injury. However, there is no consensus on the most appropriate rehabilitation which should be carried out for ACL reconstruction (ACLR) and the surgical management of articular cartilage lesions of the knee. The purpose of this study was to systematically review the literature to investigate the recommended rehabilitation protocol for patients undergoing ACLR with concomitant articular cartilage injury with a view to develop guidelines on the most appropriate treatment...
April 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Christopher P Childers, Anaar E Siletz, Emily S Singer, Claire Faltermeier, Q Lina Hu, Clifford Y Ko, Gregory J Golladay, Stephen L Kates, Elizabeth C Wick, Melinda Maggard-Gibbons
Background: Use of enhanced recovery pathways (ERPs) can improve patient outcomes, yet national implementation of these pathways remains low. The Agency for Healthcare Research and Quality (AHRQ; funder), the American College of Surgeons, and the Johns Hopkins Medicine Armstrong Institute for Patent Safety and Quality have developed the Safety Program for Improving Surgical Care and Recovery-a national effort to catalyze implementation of practices to improve perioperative care and enhance recovery of surgical patients...
2018: Geriatric Orthopaedic Surgery & Rehabilitation
Jeong-Il Kang, Dae-Keun Jeong, Hyun Choi
[Purpose] The purpose of the present study was to apply early intervention via microcurrent and cryotherapy in patients who underwent rotator cuff reconstruction surgery, and to investigate the effects of such interventions on pain and inflammation levels based on the analysis of C-reactive protein (CRP) levels, and on changes in muscle tone. [Subjects and Methods] The study population consisted of 30 patients who had undergone rotator cuff reconstruction surgery, with 10 patients each assigned to the control, experimental I (E-1), and experimental II (E-II) groups...
January 2018: Journal of Physical Therapy Science
Mansi M Patel, Manish V Patel, S N Gupta, Kalapi B Patel
Severe knee flexion contracture greater than 80° is rare and challenging to manage. It is a common complication which occurs after a prolonged course of the rheumatoid arthritis. The case was a 45 year old female patient of Ama vata (rheumatoid arthritis) with sandhijadya and sankoca (contracture deformity) who was hospitalized for 2 months. She was unable to walk since 1 year due to contracture of both knee joints. The patient came on a wheel chair and was unable to walk even with support. She was advised for contracture repair surgery which she refused...
January 2018: Journal of Ayurveda and Integrative Medicine
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