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https://www.readbyqxmd.com/read/27913970/radiological-and-biochemical-effects-ctx-ii-mmp-3-8-and-13-of-low-level-laser-therapy-lllt-in-chronic-osteoarthritis-in-al-kharj-saudi-arabia
#1
Gopal Nambi S, Walid Kamal, Julie George, Elbagir Manssor
Inflammation of synovial membrane and degeneration of articular cartilage in osteoarthritis (OA) lead to major changes in joint space width (JSW) and biochemical components such as collagen-II telopeptide (CTX-II) and matrix metallo protineases (MMP-3, 8, and 13). Low-level laser therapy (LLLT) is thought to have an analgesic effect as well as biomodulatory effect on microcirculation and cartilage regeneration in animal studies. The objective of this study was to examine the analgesic and biochemical effect of LLLT in patients with knee osteoarthritis...
December 3, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27913901/3d-active-passive-response-of-human-knee-joint-in-gait-is-markedly-altered-when-simulated-as-a-planar-2d-joint
#2
H Marouane, A Shirazi-Adl, M Adouni
Musculoskeletal models of the lower extremity make a number of important assumptions when attempting to estimate muscle forces and tibiofemoral compartmental loads in activities such as gait. The knee is commonly idealized as a planar 2D joint in the sagittal plane with no consideration of motions and equilibrium in remaining planes. With muscle forces predicted, the static equilibrium in the frontal plane is then used to estimate compartmental loads neglecting also joint passive resistance and assuming condylar contact centers...
December 2, 2016: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/27913813/-rehabilitation-after-hip-and-knee-endoprosthetic-treatment-in-the-elderly
#3
H Bork
Due to current demographic developments with a continuous increase in average life expectancy and improved medical treatment, the number of elderly patients with joint replacement of the lower extremities also has increased in recent years. Most of these patients have not only one but several chronic diseases requiring treatment and medication. Drug-drug interaction and functional restrictions of the elderly additionally reduce the postoperative psychophysical capacity; therefore, special knowledge in rehabilitative treatment and pain management is necessary...
December 2, 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27912929/survival-failure-modes-and-function-of-combined-distal-femur-and-proximal-tibia-reconstruction-following-tumor-resection
#4
F Sevelda, W Waldstein, J Panotopoulos, C Stihsen, A Kaider, P T Funovics, R Windhager
BACKGROUND: Tumor spread to the knee joint or skip metastasis to the adjacent bones of the knee require reconstruction with combined distal femur and proximal tibia replacements. The literature on implant survival and failure modes with this type of reconstruction is sparse. The goals of this study were to determine the implant survival, the different failure modes and the functional outcome of this megaendoprosthetic reconstruction. PATIENTS AND METHODS: Thirty-nine patients with combined distal femur and proximal tibia reconstruction were retrospectively reviewed...
November 23, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27910738/cartilage-repair-in-the-degenerative-ageing-knee
#5
Mats Brittberg, Andreas H Gomoll, José A Canseco, Jack Far, Martin Lind, James Hui
Background and purpose - Cartilage damage can develop due to trauma, resulting in focal chondral or osteochondral defects, or as more diffuse loss of cartilage in a generalized organ disease such as osteoarthritis. A loss of cartilage function and quality is also seen with increasing age. There is a spectrum of diseases ranging from focal cartilage defects with healthy surrounding cartilage to focal lesions in degenerative cartilage, to multiple and diffuse lesions in osteoarthritic cartilage. At the recent Aarhus Regenerative Orthopaedics Symposium (AROS) 2015, regenerative challenges in an ageing population were discussed by clinicians and basic scientists...
December 2, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27909787/test-retest-reliability-of-tibiofemoral-joint-space-width-measurements-made-using-a-low-dose-standing-ct-scanner
#6
Neil A Segal, John Bergin, Andrew Kern, Christian Findlay, Donald D Anderson
OBJECTIVE: To determine the test-retest reliability of knee joint space width (JSW) measurements made using standing CT (SCT) imaging. SUBJECTS AND METHODS: This prospective two-visit study included 50 knees from 30 subjects (66% female; mean ± SD age 58.2 ± 11.3 years; BMI 29.1 ± 5.6 kg/m(2); 38% KL grade 0-1). Tibiofemoral geometry was obtained from bilateral, approximately 20° fixed-flexed SCT images acquired at visits 2 weeks apart. For each compartment, the total joint area was defined as the area with a JSW <10 mm...
December 1, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27909679/arthroscopic-treatment-of-patellar-tendinopathy-use-of-70%C3%A2-arthroscope-and-superolateral-portal
#7
Orestis Karargyris, Vipul Mandalia
Surgical treatment of recalcitrant patellar tendinopathy includes both the open surgical approach and minimally invasive arthroscopic debridement. A variety of arthroscopic techniques have been described that involve the use of a standard 30° arthroscope and standard anterolateral and anteromedial portals. As a result, visualization of the infrapatellar region can be variable, and it may be necessary to create additional portals. A 70° arthroscope provides the advantage of a wider field of view to the surgeon...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909675/arthroscopic-primary-repair-of-proximal-anterior-cruciate-ligament-tears
#8
Gregory S DiFelice, Jelle P van der List
In a select group of patients with proximal anterior cruciate ligament (ACL) tears, primary repair can be a useful technique. Preservation of the native ACL may be advantageous for proprioceptive function and is thought to restore normal knee joint kinematics. The procedure is a less morbid and more conservative surgical approach to restore knee stability. Primary repair is preferably performed in the acute setting because of better healing capacity and tissue quality. We present the surgical technique of arthroscopic primary ACL repair with suture anchors in patients with proximal tears and excellent tissue quality...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909662/osteochondral-autograft-transfer-technique-for-glenoid-osteochondral-defect
#9
Douglas J Wyland, Clint Beicker
Glenoid osteochondral defects can be a significant source of pain and disability in an active population. Many treatments are available, but most joint-preserving procedures are limited to debridement, abrasion chondroplasty, or marrow-stimulation techniques, all of which depend on healthy underlying bone and none of which address underlying bony pathology. Osteochondral autograft transfer has been a successful form of treatment for lesions in the knee, elbow, and ankle, especially when subchondral bone is involved...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909143/interobserver-and-intraobserver-reliability-of-clinical-assessments-in-knee-osteoarthritis
#10
Nasimah Maricar, Michael J Callaghan, Matthew J Parkes, David T Felson, Terence W O'Neill
OBJECTIVE: Clinical examination of the knee is subject to measurement error. The aim of this analysis was to determine interobserver and intraobserver reliability of commonly used clinical tests in patients with knee osteoarthritis (OA). METHODS: We studied subjects with symptomatic knee OA who were participants in an open-label clinical trial of intraarticular steroid therapy. Following standardization of the clinical test procedures, 2 clinicians assessed 25 subjects independently at the same visit, and the same clinician assessed 88 subjects over an interval period of 2-10 weeks; in both cases prior to the steroid intervention...
December 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27909124/predicting-dissatisfaction-following-total-knee-arthroplasty-in-patients-under-55-years-of-age
#11
C E H Scott, W M Oliver, D MacDonald, F A Wade, M Moran, S J Breusch
AIMS: Risk of revision following total knee arthroplasty (TKA) is higher in patients under 55 years, but little data are reported regarding non-revision outcomes. This study aims to identify predictors of dissatisfaction in these patients. PATIENTS AND METHODS: We prospectively assessed 177 TKAs (157 consecutive patients, 99 women, mean age 50 years; 17 to 54) from 2008 to 2013. Age, gender, implant, indication, body mass index (BMI), social deprivation, range of movement, Kellgren-Lawrence (KL) grade of osteoarthritis (OA) and prior knee surgery were recorded...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27909123/comparative-study-of-computer-assisted-total-knee-arthroplasty-after-opening-wedge-osteotomy-versus-after-unicompartmental-arthroplasty
#12
R Pailhé, J Cognault, J Massfelder, A Sharma, R-C Rouchy, B Rubens-Duval, D Saragaglia
AIMS: The role of high tibial osteotomy (HTO) is being questioned by the use of unicompartmental knee arthroplasty (UKA) in the treatment of medial compartment femorotibial osteoarthritis. Our aim was to compare the outcomes of revision HTO or UKA to a total knee arthroplasty (TKA) using computer-assisted surgery in matched groups of patients. PATIENTS AND METHODS: We conducted a retrospective study to compare the clinical and radiological outcome of patients who underwent revision of a HTO to a TKA (group 1) with those who underwent revision of a medial UKA to a TKA (group 2)...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27908650/musculoskeletal-conditions-in-a-pediatric-population-with-ehlers-danlos-syndrome
#13
Courtney M Stern, Michael J Pepin, Joan M Stoler, Dennis E Kramer, Samantha A Spencer, Cynthia J Stein
OBJECTIVE: To describe musculoskeletal conditions in children with Ehlers-Danlos syndrome (EDS). STUDY DESIGN: A retrospective medical record review was performed, which evaluated 205 patients with EDS (ages 6-19 years) seen in sports medicine or orthopedic clinic at a large pediatric hospital over a 5-year period. RESULTS: Female (n = 147) and male (n = 57) patients were identified (mean age 12.7 years). The most common EDS subtype (55...
November 28, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27908189/thermoacoustic-imaging-of-rabbit-knee-joints
#14
Zihui Chi, Yuan Zhao, Lin Huang, Zhu Zheng, Huabei Jiang
PURPOSE: Knee joint is one of the largest and most complex joints of the body. Knee joint diseases are common, and current clinical imaging technologies such as x-ray computed tomography, magnetic resonance imaging, and ultrasound imaging have limitations in the diagnosis of knee joint diseases. Emerging imaging technologies such as diffuse optical tomography and photoacoustic imaging (PAI) have been applied to the detection of osteoarthritis (OA). However, they are limited to small joints such as the finger and difficult to be used for large joints such as the knee...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907934/restriction-of-postoperative-joint-loading-in-a-murine-model-of-anterior-cruciate-ligament-reconstruction-botulinum-toxin-paralysis-and-external-fixation
#15
Amir Lebaschi, Xiang-Hua Deng, Nathan W Coleman, Christopher L Camp, Jianchun Zong, Andrew Carbone, Camila B Carballo, Guang-Ting Cong, Zoe M Album, Scott A Rodeo
Control of knee motion in small animal models is necessary to study the effect of mechanical load on the healing process. This can be especially challenging in mice, which are being increasingly used for various orthopedic reconstruction models. We explored the feasibility of botulinum toxin (Botox; Allergan, Dublin, Ireland) paralysis and a newly designed external fixator to restrict motion of the knee in mice undergoing anterior cruciate ligament (ACL) reconstruction. Nineteen C57BL/6 mice were allocated to two groups: (1) Botox group (n = 9) and (2) external fixator group (n = 10)...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27906945/ganglion-cyst-at-the-proximal-tibiofibular-joint-in-a-patient-with-painless-foot-drop
#16
Abdulmuhsen Alsahhaf, Waleed Renno
Entrapment neuropathies of the fibular nerve and its branches are often underdiagnosed due to the lack of reliable diagnosis using clinical examination and electrophysiologic evaluation. Most fibular nerve compressions may be classified into 2 broad categories: (a) mechanical causes, which occur at fibrous or fibro-osseous tunnels, and (b) dynamic causes related to nerve injury during specific limb positioning. Foot drop resulting from weakness of the dorsiflexor muscles of the foot is a relatively uncommon presentation and closely related to L5 neuropathy caused by a disc herniation...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27906096/biological-and-functional-evaluation-of-a-novel-pyrolytic-carbon-implant-for-the-treatment-of-focal-osteochondral-defects-in-the-medial-femoral-condyle-assessment-in-a-canine-model
#17
Samantha L Salkeld, Laura P Patron, Joan C Lien, Stephen D Cook, Deryk G Jones
BACKGROUND: Osteochondral defects continue to be a clinical treatment challenge, and when left untreated, may cause pain and functional impairment. Pyrolytic carbon is a unique isotropic biomaterial used in heart valve and small joint replacements due to its excellent wear properties and biocompatibility with bone and articular cartilage. Therefore, a proposed solution is to utilize a focal pyrolytic carbon hemiarthroplasty implant as an alternative resurfacing treatment strategy for isolated cartilage lesions...
December 1, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27905865/transient-bone-marrow-edema-syndrome-versus-osteonecrosis-perfusion-patterns-at-dynamic-contrast-enhanced-mr-imaging-with-high-temporal-resolution-can-allow-differentiation
#18
Tobias Geith, Thomas Niethammer, Stefan Milz, Olaf Dietrich, Maximilian Reiser, Andrea Baur-Melnyk
Purpose To prospectively evaluate the perfusion patterns at quantitative dynamic contrast material-enhanced (DCE) magnetic resonance (MR) imaging of transient bone marrow edema syndrome (TBMES) and avascular osteonecrosis. Materials and Methods Institutional review board approval and written informed consent were obtained. Thirty-two patients (21 men, 11 women; mean age, 48 years; 26 hips, 10 knees) underwent conventional MR imaging and a dynamic contrast-enhanced three-dimensional spoiled gradient-echo sequence at 3 T...
December 1, 2016: Radiology
https://www.readbyqxmd.com/read/27905187/no-clinically-meaningful-weight-changes-in-a-young-cohort-following-total-joint-arthroplasty-at-3-year-follow-up
#19
Peter M Formby, Richard L Purcell, Michael Baird, Matthew Wagner, Ronald P Goodlett, Andrew W Mack
BACKGROUND: Total joint arthroplasty (TJA) is one of the most successful operations. There is little in the literature regarding weight change following TJA, particularly in a young cohort. METHODS: Retrospective analysis of 181 primary total hip arthroplasty (THA) and 185 primary total knee arthroplasty (TKA) patients was conducted. We reviewed preoperative and post-operative weights and post-operative body mass index at 3 and 6 months, 1 year, 2 and 3 years...
November 30, 2016: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/27904951/pre-emptive-injection-of-peri-articular-multimodal-drug-for-post-operative-pain-management-in-total-knee-arthroplasty-a-double-blind-randomized-clinical-trial
#20
Mahdi Motififard, Ali Omidian, Sajad Badiei
PURPOSE: Severe post-operative pain is one of the main problems after total knee arthroplasty. In this study, we investigated the effect of a peri-articular multimodal drugs injections pre-emptively on post-operative pain control and knee functions following total knee arthroplasty. METHODS AND MATERIALS: This study was a double-blind randomized clinical trial. Eligible cases including 137 patients-aged 30 to 80 years old-were randomly divided into one of two groups: the drug group received a cocktail consisting of bupivacaine hydrochloride, morphine sulphate, epinephrine, and ketorolac...
November 30, 2016: International Orthopaedics
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