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https://www.readbyqxmd.com/read/29786041/fixation-versus-excision-of-osteochondral-fractures-after-patellar-dislocations-in-adolescent-patients-a-retrospective-cohort-study
#1
Hui Kang, Jian Li, Xu-Xu Chen, Tao Wang, Shi-Chang Liu, Hong-Chuan Li
Background: Patellar dislocation is one of the most common knee injuries in the adolescent population. It is often combined with osteochondral fracture. The purpose of this study was to compare the outcomes between fixation and excision of osteochondral fractures not involving the bearing surface in adolescent patients with patellar dislocations. Methods: Patients who underwent surgery for osteochondral fracture following patellar dislocation in our institution from 2007 to 2014 were retrospectively evaluated...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29785448/patella-alta-and-patellar-subluxation-might-lead-to-early-failure-with-inlay-patello-femoral-joint-arthroplasty
#2
J Beckmann, C Merz, J Huth, B Rath, C Schnurr, E Thienpont
PURPOSE: With the growing interest in resurfacing procedures, several new implants have been recently introduced for isolated patello-femoral joint arthroplasty (PFA). However, not much data are available for these new techniques or about the right indications for each type of implant. METHODS: Out of a retrospective cohort of 20 inlay PFA, 11 PFA with an elevated Insall-Salvati index and an increased patello-femoral congruence angle showed an initial satisfactory result, but presented thereafter with recurrent pain and "clunk" phenomena...
May 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29785392/periosteal-pseudotumor-in-complex-total-knee-arthroplasty-resembling-a-neoplastic-process
#3
Madhav Chowdhry, Matthew V Dipane, Edward J McPherson
This case report describes in detail an erosive distal diaphyseal pseudotumor that occurred 6 years after a complex endoprosthetic hinge total knee arthroplasty (TKA). A female patient had conversion of a knee fusion to an endoprosthetic hinge TKA at the age of 62. At her scheduled 6-year follow-up, she presented with mild distal thigh pain and radiographs showing a 6-7 cm erosive lytic diaphyseal lesion that looked very suspicious for a neoplastic process. An en bloc resection of the distal femur and femoral endoprosthesis was performed...
May 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29785313/management-of-an-infected-nonunion-of-an-opening-wedge-high-tibial-osteotomy-with-2-stage-implantation-of-rotating-hinge-knee-prosthesis
#4
Sandrine Mariaux, Olivier Borens
Introduction: High tibial osteotomy (HTO) is a frequent and effective treatment for unicompartmental gonarthritis. Only a few articles are focused on the treatment of infected nonunion. Patient and Method: A 50-year-old obese patient was operated on by medial opening-wedge HTO. She developed a painful nonunion treated by hardware removal, allograft, and plate fixation. However, the nonunion persisted. 2 years later, cellulitis appeared with an abscess adjacent to the HTO plate...
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29785270/distant-lung-metastases-caused-by-a-histologically-benign-phosphaturic-mesenchymal-tumor
#5
Maria P Yavropoulou, Christos Poulios, Christoforos Foroulis, Symeon Tournis, Prodromos Hytiroglou, Kalliopi Kotsa, Isaak Kessisoglou, Pantelis Zebekakis
Tumor-induced osteomalacia (TIO) is a rare form of hypophosphatemia usually caused by phosphaturic mesenchymal tumors (PMTs); the biologic behavior of PMTs is under investigation. Herein we present a case of TIO with a protracted course over 12 years leading to a fatal outcome. A 39-year-old man presented with weakness in 2004 and was found to have decreased serum phosphorus, phosphaturia and low levels of 1,25-dihydroxyvitamin D3. Four years later he developed a painful left calf mass. The lesion was resected, but recurred causing extreme pain and dysfunction...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29783048/effect-of-auriculotherapy-on-the-plasma-concentration-of-biomarkers-in-individuals-with-knee-osteoarthritis
#6
Rebeca Graça Costa-Cavalcanti, Danúbia da Cunha de Sá-Caputo, Eloá Moreira-Marconi, Cristiane Ribeiro Kütter, Samuel Brandão-Sobrinho-Neto, Laisa Liane Paineiras-Domingos, Marcia Cristina Moura-Fernandes, João Marcelo Castelpoggi da Costa, José Maurício de Morais Carmo, José Firmino Nogueira-Neto, Shyang Chang, Mario Bernardo-Filho
Knee osteoarthritis (KOA) is one of the most frequent non-communicable diseases with pain associated symptoms and affects the musculoskeletal system. Various forms of treatment can be indicated and non-pharmacological treatment is also an available option for the management of KOA individuals. For instance, auriculotherapy (AT) is one possible procedure associated with the Traditional Chinese Medicine for dealing with KOA. It is believed that the concentration of certain biomarkers could be altered in individuals with KOA after AT...
May 18, 2018: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/29782452/the-efficacy-of-regional-anesthesia-techniques-to-control-postoperative-pain-after-total-knee-arthroplasty
#7
(no author information available yet)
No abstract text is available yet for this article.
May 2018: Orthopaedic Nursing
https://www.readbyqxmd.com/read/29782451/the-efficacy-of-regional-anesthesia-techniques-to-control-postoperative-pain-after-total-knee-arthroplasty
#8
Cecilia Otten, Karen S Dunn
BACKGROUND: Choosing the most effective type of anesthesia for controlling postoperative pain is paramount for improving patient outcomes and patient satisfaction. Most often, the type of anesthesia selected is dependent on the duration and type of surgical procedure and anesthesiologist/surgeon preference. Using a combination of regional anesthesia techniques, however, remains the cornerstone of multimodal analgesia for postoperative pain management after total knee arthroplasty. PURPOSE: The purpose of this study was to determine what regional anesthesia techniques and/or combinations of regional anesthesia techniques provided the best postoperative pain control in patients who had undergone a total knee arthroplasty...
May 2018: Orthopaedic Nursing
https://www.readbyqxmd.com/read/29781550/walking-gait-asymmetries-six-months-following-anterior-cruciate-ligament-reconstruction-predict-twelve-month-patient-reported-outcomes
#9
Brian Pietrosimone, J Troy Blackburn, Darin A Padua, Steven J Pfeiffer, Hope C Davis, Brittney A Luc-Harkey, Matthew S Harkey, Laura E Stanley, Barnett S Frank, R Alexander Creighton, Ganesh M Kamath, Jeffery T Spang
The study sought to determine the association between gait biomechanics (vertical ground reaction force [vGRF], vGRF loading rate [vGRF-LR]) collected six months following anterior cruciate ligament reconstruction (ACLR) with patient-reported outcomes at twelve months following ACLR. Walking gait mechanics and all subsections of the Knee Injury and Osteoarthritis Outcomes Score (KOOS) were collected at six and twelve months following ACLR, respectively, in 25 individuals with a unilateral ACLR. Peak vGRF and peak instantaneous vGRF-LR were extracted from the first 50% of the stance phase...
May 21, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29780620/day-case-surgery-for-total-hip-and-knee-replacement-how-safe-and-effective-is-it
#10
Stefan Lazic, Oliver Boughton, Catherine F Kellett, Deiary F Kader, Loïc Villet, Charles Rivière
Multimodal protocols for pain control, blood loss management and thromboprophylaxis have been shown to benefit patients by being more effective and as safe (fewer iatrogenic complications) as conventional protocols.Proper patient selection and education, multimodal protocols and a well-defined clinical pathway are all key for successful day-case arthroplasty.By potentially being more effective, cheaper than and as safe as inpatient arthroplasty, day-case arthroplasty might be beneficial for patients and healthcare systems...
April 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29780615/feasibility-of-synthetic-mri-in-knee-imaging-in-routine-practice
#11
Sana Boudabbous, Angeliki Neroladaki, Ilias Bagetakos, Marion Hamard, Bénédicte Ma Delattre, Maria Isabel Vargas
Background: Synthetic magnetic resonance (MR) is a method allowing reduction of examination time and access to quantitative imaging. Purpose: This study sought to assess the image quality and diagnostic accuracy of synthetic magnetic resonance imaging (MRI) compared to standard MRI in patients with knee pain. Material and Methods: In total, 22 patients underwent standard 1.5 knee MRI with an added synthetic sequence. Quantitative T1, T2, and proton density (PD) images were generated synthetically; T1, PD, and short tau inversion recovery (STIR) weighted images were created with chosen echo time (TE), repetition time (TR), and inversion time (TI)...
May 2018: Acta Radiologica Open
https://www.readbyqxmd.com/read/29780263/a-pooled-analysis-of-two-multicenter-randomized-controlled-trials-of-a-single-intra-articular-injection-of-gel-200-for-treatment-of-osteoarthritis-of-the-knee
#12
Junko Takamura, Takayuki Seo, Vibeke Strand
Background and Objective: To perform an integrated analysis of 2 randomized controlled trials (RCTs) to assess the efficacy and safety of a single intra-articular injection of Gel-200 compared with phosphate buffered saline (PBS) for treatment of osteoarthritis of the knee. Methods: Data from the intention-to-treat (ITT) populations of both RCTs were pooled for this integrated analysis. Mean changes from baseline in Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain subscores were assessed using a longitudinal model; treatment differences were compared between intra-articular Gel-200 and PBS injections...
2018: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29780158/evaluation-of-the-factors-affecting-concerns-and-expectations-of-patients-undergoing-total-knee-arthroplasty-in-china
#13
Yang Li, Hong Cai, Hua Tian, Ke Zhang
BACKGROUND The aim of this study was to assess the level of concern and expectations of patients and their families of total knee arthroplasty (TKA), peri-operative procedures, postoperative rehabilitation, and outcome in a Chinese population. MATERIAL AND METHODS The study recruited 133 patients with osteoarthritis, scheduled to undergo primary elective TKA. Before surgery, the surgeon completed the Hospital for Special Surgery (HSS) Knee Score questionnaire on pain, function, range of motion (ROM), and muscle strength...
May 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29779992/radiologic-factors-affecting-ankle-pain-before-and-after-total-knee-arthroplasty-for-the-varus-osteoarthritic-knee
#14
Chang-Wan Kim, Heui-Chul Gwak, Jung-Han Kim, Chang-Rack Lee, Jeon-Gyo Kim, Minkyung Oh, Ji-Hwan Park
The aim of the present study was to evaluate the radiologic factors related to ankle pain before and after total knee arthroplasty (TKA) among patients with a varus osteoarthritic knee. Fifty-five patients (65 ankles) with a varus osteoarthritic knee who had undergone TKA and were followed up for >24 months were enrolled. For clinical assessment, the visual analog scale for pain and the American Orthopaedic Foot and Ankle Society ankle-hindfoot scale were used. For radiologic assessment, the mechanical axis deviation angle, talar tilt, tibial anterior surface angle, distal medial clear space, medial tibiotalar joint space, frontal tibial ground angle, and hindfoot alignment view angle were measured...
May 17, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29779864/-an-unexpected-cause-of-knee-pain
#15
P Kauffmann, A-S Ries, C Geronimus, P Bilbault, P Le Borgne
No abstract text is available yet for this article.
May 17, 2018: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29777717/analysis-of-the-postoperative-periarticular-environment-and-influence-on-sustained-drug-delivery-from-a-gel-formulation
#16
Darren Svirskis, Waldron Martis, Prabhat Bhusal, Manisha Sharma, Renus Stowers, Simon W Young
Regional intraarticular delivery of local anaesthetics is effective in treating postoperative pain following total knee or hip replacement. Recent research efforts have been only partially successful in achieving sustained release of the analgesic agent, in part due to limited understanding of the biological environment into which these formulations are administered. This study aimed to detail the composition and properties of postoperative periarticular fluid (PO-PAF). PO-PAF was collected from 8 patients and the composition and physicochemical properties determined...
May 16, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29776855/incidence-and-risk-factors-of-kinesiophobia-after-total-knee-arthroplasty-in-zhengzhou-china-a-cross-sectional-study
#17
Libai Cai, Yanjin Liu, Huiping Xu, Qiulu Xu, Yanyan Wang, Peihua Lyu
BACKGROUND: The incidence of and risk factors for kinesiophobia after total knee arthroplasty (TKA) have not been well characterized in the literature. Thus, the aim of this study was to investigate the incidence of postoperative kinesiophobia among patients undergoing TKA and to identify the associated risk factors. METHODS: The simplified Chinese version of the Tampa Scale for Kinesiophobia, Knee Self-Efficacy Scale, Numerical Rating Scale, Simplified Coping Style Questionnaire, and Social Support Rating Scale were used to measure kinesiophobia, self-efficacy, pain intensity, coping styles and social support, respectively...
April 23, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29776853/outcomes-of-a-fixed-bearing-medial-cemented-unicondylar-knee-arthroplasty-design-survival-analysis-and-functional-score-of-460-cases
#18
Philip Winnock de Grave, Justine Barbier, Thomas Luyckx, Alexander Ryckaert, Paul Gunst, Luc Van den Daelen
BACKGROUND: Unicompartmental knee arthroplasty (UKA) is an alternative to total knee arthroplasty in isolated medial osteoarthritis (OA). However, despite satisfactory reports on the clinical performance, UKA revision rates are still concerning. This retrospective study reports on the long-term survivorship, functional outcomes, and reasons for revision in fixed-bearing UKA implant. METHODS: Between 2005 and 2013, 460 consecutive patients were treated with medial UKA in one center using a fixed-bearing UKA system...
April 24, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29776821/wide-step-width-reduces-knee-abduction-moment-of-obese-adults-during-stair-negotiation
#19
Derek Yocum, Joshua T Weinhandl, Jeffrey T Fairbrother, Songning Zhang
PURPOSE: An increased likelihood of developing obesity-related knee osteoarthritis may be associated with increased peak internal knee abduction moments (KAbM). Increases in step width (SW) may act to reduce this moment. The purpose of this study was to determine the effects of increased SW on knee biomechanics during stair negotiation of healthy-weight and obese participants. METHODS: Participants (24: 10 obese and 14 healthy-weight) used stairs and walked over level ground while walking at their preferred speed in two different SW conditions - preferred and wide (200% preferred)...
May 15, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29776814/metallosis-in-cemented-titanium-alloy-total-knee-arthroplasty-without-apparent-metal-on-metal-articulation
#20
James Ho, John Mahajan, Martin Taylor, Ashlyn Byers, Paul Arauz, Young-Min Kwon
BACKGROUND: Metallosis is an uncommon phenomenon observed in late failures of cemented total knee arthroplasty (TKA), and it is rarely seen in the absence of metal-on-metal articulation. METHODS: We report the case of a TKA patient with cemented titanium-alloy components and a polyethylene patella that was revised for early loosening with intra-operative severe metallosis. RESULTS: We found that loosening and severe metallosis were associated with methacrylate particle abrasion on titanium alloy surfaces...
May 16, 2018: Knee
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