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Knee stiffness

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https://www.readbyqxmd.com/read/29336857/identifying-risk-factors-for-the-development-of-stiffness-after-revision-total-knee-arthroplasty
#1
S B Dowdle, Nicholas A Bedard, Jessell M Owens, Yubo Gao, John J Callaghan
BACKGROUND: Although there are several studies concerning manipulation under anesthesia (MUA) after primary total knee arthroplasty, there is a paucity of literature evaluating MUA after revision total knee arthroplasty (rTKA). The purpose of this study was to determine the incidence, timing, and risk factors associated with MUA after rTKA. METHODS: The Humana database was reviewed from 2007 to 2015 for all patients who underwent rTKA. Patients who underwent rTKA followed by ipsilateral MUA were identified...
December 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29331489/modulation-of-lower-extremity-joint-stiffness-work-and-power-at-different-walking-and-running-speeds
#2
Li Jin, Michael E Hahn
Locomotion task and speed changes affect dynamic joint function. Walking and running require different coordination patterns of lower extremity joint mechanics. These coordination differences can result in measurable changes in kinematic and kinetic patterns. When locomotion speed changes, the functional role and movement strategy of each joint is altered. A deeper understanding of joint level mechanics and functional interactions will benefit rehabilitation programs and assistive device development. In this study, joint stiffness, joint mechanical work and power were assessed, as they relate to dynamic function of joints during locomotion...
January 10, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29329669/prevalence-and-predictors-of-symptom-resolution-and-functional-restoration-in-the-index-knee-following-knee-arthroplasty-a-longitudinal-study
#3
Daniel L Riddle
OBJECTIVES: To determine the prevalence of a one- to two-year postsurgical pain-free state and pain plus symptom-free state as well as function restoration following knee arthroplasty (KA). A second purpose was to identify predictors of these outcomes. DESIGN: An inception cohort from the Osteoarthritis Initiative (OAI) dataset, a nine-year NIH funded cohort study of persons with or at high risk for knee osteoarthritis was studied. SETTING: Subjects were recruited from the communities of four sites in the Midwest, Eastern and Southeastern United States...
January 9, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#4
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29327169/passive-stiffness-of-monoarticular-lower-leg-muscles-is-influenced-by-knee-joint-angle
#5
Filiz Ateş, Ricardo J Andrade, Sandro R Freitas, François Hug, Lilian Lacourpaille, Raphael Gross, Can A Yucesoy, Antoine Nordez
PURPOSE: While several studies demonstrated the occurrence of intermuscular mechanical interactions, the physiological significance of these interactions remains a matter of debate. The purpose of this study was to quantify the localized changes in the shear modulus of the gastrocnemius lateralis (GL), monoarticular dorsi- and plantar-flexor muscles induced by a change in knee angle. METHOD: Participants underwent slow passive ankle rotations at the following two knee positions: knee flexed at 90° and knee fully extended...
January 11, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29322318/total-knee-arthroplasty-with-unexplained-pain-new-insights-from-kinematics
#6
Célia Planckaert, Gabriel Larose, Pierre Ranger, Marc Lacelle, Alexandre Fuentes, Nicola Hagemeister
INTRODUCTION: Up to 20% of total knee arthroplasty patients remain unsatisfied post-surgery, and a large proportion of them report anterior knee pain. This study aims to verify whether patients who experience anterior knee pain after total knee arthroplasty (TKA) will exhibit kinematic characteristics similar to those associated with patellofemoral syndrome, including in the frontal and transverse planes. MATERIALS AND METHODS: Using four different assessment methods [radiological, patient-reported outcome, musculoskeletal assessment with functional performance testing, and a 3D kinematic assessment during gait], the clinical and 3D knee kinematic profiles of three groups were compared: a painful and an asymptomatic TKA group and a healthy control group...
January 10, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29318174/sagittal-plane-hip-knee-and-ankle-biomechanics-and-the-risk-of-anterior-cruciate-ligament-injury-a-prospective-study
#7
Mari Leppänen, Kati Pasanen, Tron Krosshaug, Pekka Kannus, Tommi Vasankari, Urho M Kujala, Roald Bahr, Jarmo Perttunen, Jari Parkkari
Background: Stiff landings with less knee flexion and high vertical ground-reaction forces have been shown to be associated with an increased risk of anterior cruciate ligament (ACL) injury. The literature on the association between other sagittal plane measures and the risk of ACL injuries with a prospective study design is lacking. Purpose: To investigate the relationship between selected sagittal plane hip, knee, and ankle biomechanics and the risk of ACL injury in young female team-sport athletes...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29313556/does-obesity-affect-outcomes-in-patients-undergoing-innovative-multi-modal-physical-therapy-following-primary-total-knee-arthroplasty
#8
Nirav K Patel, Morad Chughtai, Anton Khlopas, Chukwuweike Gwam, Nipun Sodhi, Assem A Sultan, Tanner McGinn, Anil Bhave, Jaydev B Mistry, Ronald E Delanois, Michael A Mont
INTRODUCTION: Knee stiffness following total knee arthroplasty (TKA) is a common complication, especially in obese patients. The initial, non-operative treatments for this complication includes splinting and physical therapy. If these measures fail, manipulation under anesthesia (MUA) or surgical exploration can be considered to restore range of motion (ROM). However, it is generally desirable to avoid these procedures. For these reasons, newer physical therapy protocols have been developed...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29310652/what-makes-patients-aware-of-their-artificial-knee-joint
#9
F L Loth, M C Liebensteiner, J M Giesinger, K Giesinger, H R Bliem, B Holzner
BACKGROUND: Joint awareness was recently introduced as a new concept for outcome assessment after total knee arthroplasty (TKA). Findings from qualitative and psychometric studies suggest that joint awareness is a distinct concept especially relevant to patients with good surgical outcome and patients at late follow-up time points. The aim of this study was to improve the understanding of the concept of joint awareness by identifying situations in which patients are aware of their artificial knee joint and to investigate what bodily sensations and psychological factors raise a patient's awareness of her/his knee...
January 8, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29301169/primary-septic-arthritis-of-the-knee-due-to-mycobacterium-tuberculosis-in-a-previously-healthy-child
#10
Samuel Rosas, Daniel Rosas, Valentina Múnera Orozco, Manuela Parra Cardona, Chukwuweike Gwam, Simon Pedro Aristizabal
Pediatric septic arthritis can be a devastating disease. Often, the diagnosis can be challenging as autoimmune and infectious causes may present in a similar fashion. Thus, we present the case of a five-year-old male patient, from the Pacific coast of Colombia, with chronic morning knee pain and stiffness thought to be caused by an autoimmune disease. He presented with a mild effusion of the left knee, a flexed posture, and limited extension to 25°. Inflammatory markers demonstrated an infectious pattern. Autoimmune markers were negative...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29298102/deer-bone-extract-supplementation-for-mild-to-moderate-knee-osteoarthritis-symptoms-a-randomized-double-blind-placebo-controlled-trial
#11
Dongseok Shin, Eun Ae Kim, Yoon Young Kim, Min Seo Kim, Jong Hoon Kim, Chang Won Ahn, Soo-Hyun Park, Ki Won Lee, Jae Hwa Kim, Ji Yeon Kim
In this randomized, double-blind, placebo-controlled study, we evaluated the efficacy of deer bone extract (DBE) in participants with knee osteoarthritis (OA). We enrolled 50 participants aged 50-70 years, having knee OA with a Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score ≥5.0. The participants were assigned to the placebo or DBE group (550 mg/day) for 12 weeks. The outcome measures were as follows: pain score on the visual analog scale (VAS); WOMAC score; and blood and urine biomarkers...
January 3, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29290334/efficacy-of-manipulation-under-anesthesia-for-stiffness-following-total-knee-arthroplasty-a-systematic-review
#12
REVIEW
Alex Gu, Adam J Michalak, Jordan S Cohen, Neil D Almeida, Alexander S McLawhorn, Peter K Sculco
BACKGROUND: Knee stiffness following primary total knee arthroplasty can lead to unsatisfactory patient outcomes secondary to persistent pain and loss of function. Manipulation under anesthesia (MUA) remains a viable option for treatment of post-operative stiffness. However, the optimal timing and clinical efficacy of manipulation of anesthesia remains unknown. METHODS: A systematic review of the literature was performed to identify studies that reported clinical outcomes for patients who underwent MUA for post-operative stiffness treatment...
December 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29281798/how-does-the-presence-of-unstable-chondral-lesions-affect-patient-outcomes-after-partial-meniscectomy-the-champ-randomized-controlled-trial
#13
Leslie J Bisson, Melissa A Kluczynski, William M Wind, Marc S Fineberg, Geoffrey A Bernas, Michael A Rauh, John M Marzo, Zehua Zhou, Jiwei Zhao
BACKGROUND: Chondral lesions are commonly encountered during arthroscopic partial meniscectomy (APM); however, it is unknown how these lesions affect postoperative outcomes. PURPOSE: The authors compared postoperative outcomes among patients with and without unstable chondral lesions 1 year after APM. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: The authors conducted a secondary analysis of data from the ChAMP (Chondral Lesions and Meniscus Procedures) randomized controlled trial...
December 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29277060/does-additional-patella-tendon-shortening-influence-the-effects-of-multilevel-surgery-to-correct-flexed-knee-gait-in-cerebral-palsy-a-randomized-controlled-trial
#14
M C M Klotz, Britta K Krautwurst, K Hirsch, M Niklasch, M W Maier, S I Wolf, T Dreher
BACKGROUND: The aims of this study were to investigate if patellar tendon shortening (PTS) as a part of SEMLS (single event multilevel surgery) is effective for reduction of flexed knee gait in children with cerebral palsy (CP) and, if PTS leads to stiff knee gait. METHODS: In a randomized controlled study 22 children with flexed knee gait (age: 10.4 ± 2.6 years, GMFCS Level I-III) were randomized and allocated to two groups (1: SEMLS + PTS; 2: SEMLS no PTS): SEMLS was performed for correction of flexed knee gait either with or without additional PTS...
December 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29276463/conservative-management-of-possible-meniscal-derangement-using-the-mulligan-concept-a-case-report
#15
Belinda J Sanchez, Russell T Baker
Objective: The purpose of this case study was to report on the immediate effects of the combined use of mobilizations with movement and the "squeeze" technique on a patient with knee stiffness, popping, and swelling. Clinical Features: The patient presented with right knee stiffness, swelling, and a popping sensation of insidious onset. Clinical examination revealed pain with terminal knee extension and flexion, joint line tenderness, a positive Apley's compression test, and a positive Thessaly's test at 20° of knee flexion...
December 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/29275984/independent-suture-tape-reinforcement-of-small-and-standard-diameter-grafts-for-anterior-cruciate-ligament-reconstruction-a-biomechanical-full-construct-model
#16
Samuel Bachmaier, Patrick A Smith, Jordan Bley, Coen A Wijdicks
PURPOSE: To compare the dynamic elongation, stiffness behavior, and ultimate failure load of standard with small diameter soft tissue grafts for anterior cruciate ligament (ACL) reconstruction with and without high-strength suture tape reinforcement. METHODS: Both a tripled "small" diameter and a "standard" quadrupled tendon graft with and without suture tape reinforcement were tested using suspensory fixation (n = 8 each group). The suture tape was passed through the suspensory fixation button on the femur and tibia to ensure independent (safety belt) fixation from the graft in vitro...
December 21, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29274860/primary-pyomyositis-in-children
#17
M M Elzohairy
BACKGROUND: Pyomyositis PM is defined as a primary pyogenic infection of the striated skeletal muscle; although it has many dystrophic musculoskeletal complications, it is always misdiagnosed by many orthopedic surgeons. HYPOTHESIS: PM is rare in temperate climates and usually considered to be a tropical disease, until recent times, after globalization, it is possible to occur in the subtropical climate as in our country. MATERIAL AND METHODS: In the present series, the results of 15 children patients with primary pyomyositis have been reviewed...
December 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29260438/novel-flat-and-wide-meniscal-repair-material-improves-the-ultimate-load-of-knot-breakage-in-a-porcine-trans-capsular-meniscal-repair-model
#18
Hiroyuki Yokoi, Tatsuo Mae, Ryo Iuchi, Yasuhiro Take, Yuta Tachibana, Kazunori Shimomura, Tomoki Ohori, Konsei Shino, Hideki Yoshikawa, Ken Nakata
BACKGROUND: In the meniscal repair procedures, a high ultimate load capacity and low cyclic creep at the repair site are favorable and lead to good biological incorporation of the tear site after surgery. Previous biomechanical tensile tests of the meniscal sutures have identified the suture knot as the weakest point. We hypothesized that the strength of a suture knot depends on the suture shape, and therefore, we compared three differently shaped suture materials composed of the same material and quantity per length...
December 19, 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29247979/porous-architected-biomaterial-for-a-tibial-knee-implant-with-minimum-bone-resorption-and-bone-implant-interface-micromotion
#19
Amirmohammad Rahimizadeh, Zahra Nourmohammadi, Sajad Arabnejad, Michael Tanzer, Damiano Pasini
This investigation presents the numerical development of a fully porous tibial knee implant that is suggested to alleviate the clinical problems associated with current prostheses that are fully solid. A scheme combining multiscale mechanics and topology optimization is proposed to handle the homogenized analysis and property tailoring of the porous architecture with the aim of reducing the stiffness mismatch between the implant and surrounding bone. The outcome of applying this scheme is a graded lattice microarchitecture that can potentially offer the implant an improved degree of load bearing capacity while reducing concurrently bone resorption and interface micromotion...
December 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29246745/effectiveness-of-topical-gel-of-medical-leech-hirudo-medicinalis-saliva-extract-on-patients-with-knee-osteoarthritis-a-randomized-clinical-trial
#20
Amir Shakouri, Nasim Adljouy, Sanaz Balkani, Maryam Mohamadi, Hamed Hamishehkar, Jalal Abdolalizadeh, Seyed Kazem Shakouri
Leech saliva extract (LSE) in the liposome-based gel was used as a supplementary treatment to relief the signs and symptoms of osteoarthritis (OA). The saliva of medical leech was extracted and nano liposomes were used to formulate the supplement to enhance skin absorption. A clinical trial was designed to evaluate the therapeutic effects of LSE liposomal gel. Lenquesne and VAS questionnaires were used as indexes of this supplement therapy efficacy for 30 days. Questionnaires analysis showed that after one-month administration of LSE liposomal gel, patients' pain was relieved approximately up to 50%; also, due to reduction in joint inflammation and stiffness, the range of motion was increased and the patients' quality of life was enhanced (p < 0...
December 6, 2017: Complementary Therapies in Clinical Practice
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