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Clinical outcomes knee

Chao-Hua Fang, Cheng-Kung Cheng, Tie-Bing Qu, Jun-Hui Zhang, Bo Zhang, Qun Hua, Shi-Gui Yan
Rotational malalignment between the femoral and tibial components in total knee arthroplasty (TKA) can affect clinical outcomes, but there is no consensus on how to best determine tibia tray orientation. The posterolateral corner-locked (PLCL) technique may be a new method. This study aims to assess the applicability of this technique in a Chinese population. Forty normal Chinese volunteers were recruited and underwent computed tomography (CT) of the lower limbs. Knee model reconstructions and simulated standard tibial osteotomy were conducted digitally...
February 14, 2019: Journal of Knee Surgery
Riccardo Gomes Gobbi, Adriana Lúcia Pastore E Silva, Marco Kawamura Demange, José Ricardo Pécora, João Espregueira-Mendes, Gilberto Luis Camanho
This study was designed to evaluate the effect of pulsed signal therapy (PST) on patellofemoral pain syndrome associated with patellar chondropathy. A prospective randomized double-blind placebo controlled trial included 25 patients (41 knees) between 20 and 50 years with pain due to isolated patellofemoral syndrome with chondropathy. PST group received nine 60-min daily sessions of PST treatment. Control group received the same protocol of blinded placebo treatment. The main outcome was change from baseline Kujala score at 3 months...
February 14, 2019: Bioelectromagnetics
Sung-Sahn Lee, Kyeu-Back Kwon, Yong-In Lee, Young-Wan Moon
The purpose of this study was to evaluate the influence of navigation-assisted surgery on radiographic and clinical outcomes after total knee arthroplasty (TKA) for a valgus knee. The authors identified all patients who underwent TKA for a valgus knee between January 2005 and December 2015. Among 83 conventional TKA cases and 55 navigation-assisted TKA cases, propensity score matching was performed for age, sex, body mass index, and preoperative lower limb mechanical axis. Fifty knees were matched to 50 knees...
February 14, 2019: Orthopedics
Christoffer von Essen, Sebastian McCallum, Björn Barenius, Karl Eriksson
PURPOSE: To compare the total number of sick-leave days caused by the knee injury from the day of injury and over the first year between acute (within 8 days) and delayed (6-10 weeks) anterior cruciate ligament reconstruction (ACLR) and also assess other clinical outcomes during this period. METHODS: Seventy patients with an acute ACL injury and Tegner level of 6 or more were randomized to acute (within 8 days) or delayed (after 6-10 weeks) ACLR. Patient-reported outcomes; objective IKDC and manual stability measurements were assessed at 6 and 12 months...
February 14, 2019: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Jing Guo, Yang Chen, Zhengjie Li, Shirui Cheng, Chenjian Tang, Xiaohui Dong, Wenhua He, Yong Huang, Bao Yin, Yu Sheng, Jun Zhou, Aijia Li, Fang Zeng, Lei Lan, Fanrong Liang
BACKGROUND: Acupuncture is safe and effective for reducing the symptoms of knee osteoarthritis (KOA), but the underlying mechanisms of acupuncture for treating KOA are not fully understood. METHODS/DESIGN: In total, 108 participants diagnosed with KOA will be recruited. They will be blinded to group assignment and randomized to either verum acupuncture, sham acupuncture or waiting-list groups with 36 patients in each group. Each patient in the acupuncture group will receive five treatments per week for 2 weeks...
February 13, 2019: Trials
Takahiro Ogura, Tim Bryant, Gergo Merkely, Tom Minas
BACKGROUND: Treating bipolar chondral lesions in the patellofemoral (PF) compartment is a challenging problem. There are few reports available on the treatment of bipolar chondral lesions in the PF compartment. PURPOSE: To evaluate the clinical outcomes and graft survivorship after autologous chondrocyte implantation (ACI) for the treatment of bipolar chondral lesions in the PF compartment. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: The authors evaluated 58 patients who had ACI by a single surgeon for the treatment of symptomatic bipolar chondral lesions in the PF compartment between November 1995 and June 2014...
February 13, 2019: American Journal of Sports Medicine
Mylène P Jansen, Nick J Besselink, Ronald J van Heerwaarden, Roel J H Custers, Pieter J Emans, Sander Spruijt, Simon C Mastbergen, Floris P J G Lafeber
OBJECTIVE: Both, knee joint distraction (KJD) and high tibial osteotomy (HTO) are joint-preserving surgeries that postpone total knee arthroplasty (TKA) in younger osteoarthritis (OA) patients. Here we evaluate the 2-year follow-up of KJD versus TKA and KJD versus HTO in 2 noninferiority studies. DESIGN: Knee OA patients indicated for TKA were randomized to KJD ( n = 20; KJDTKA ) or TKA ( n = 40). Medial compartmental knee OA patients considered for HTO were randomized to KJD ( n = 23; KJDHTO ) or HTO ( n = 46)...
February 13, 2019: Cartilage
Seong Hwan Kim, Chul-Won Ha, Yong-Beom Park, Eunwoo Nam, Jung-Eun Lee, Han-Jun Lee
INTRODUCTION: Mesenchymal stem cells (MSCs) have gained popularity for articular cartilage repair. However, efficacy of intra-articular MSCs in osteoarthritis remains unclear. In the setting of a meta-analysis of randomized controlled trials (RCTs), we aimed to investigate the efficacy of intra-articular MSCs on clinical outcomes and cartilage repair in patients with knee osteoarthritis. MATERIALS AND METHODS: PubMed, EMBASE, Cochrane Library, CINAHL, and Scopus were searched from inception to March 31, 2017...
February 11, 2019: Archives of Orthopaedic and Trauma Surgery
Jens Ole Laursen, Christian Backer Mogensen, Helene Skjøt-Arkil
PURPOSE: The aim of this study was to investigate the long-term outcome of the unicompartmental knee resurfacing prosthesis (UniCAP) using clinical and radiographic assessments, and to evaluate the revision and survival rates. METHODS: This was a prospective cohort study of patients with UniCAP prostheses with 6-9 years of follow-up. The clinical examination included the Knee Society Score (KSS) and Visual Analogue Scale (VAS) score. The radiographic examination included the Kellgren-Lawrence (KL) grading scale...
February 11, 2019: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
A Z Chowdhury, M H Ali, M A Faisal, I K Kundu, K N Arifeen, C I Mahmood, M M Rana, J H Buyan
Anterior cruciate ligament injury is one of the commonest sports injuries, which often markedly reduces activity and the quality of life. The autologous hamstring double bundle graft and single bundle graft are commonly used for anterior cruciate ligament reconstruction. The choice of graft material for ACL reconstruction is believed to play a major role in the outcome but still there are controversies about the graft selection for primary ACL reconstruction. The aim of this study was to compare the clinical and functional outcome of autologous double bundle (DB) hamstring graft and single bundle (SB) hamstring graft reconstruction for the ACL injury...
January 2019: Mymensingh Medical Journal: MMJ
Shangyi Hui, Liyuan Tao, Feroze Mahmood, Derong Xu, Zhinan Ren, Xin Chen, Lin Sheng, Qianyu Zhuang, Shugang Li, Yuguang Huang
BACKGROUND: Tranexamic acid (TXA) has been routinely delivered in multisegmental spinal decompression and bone graft fusion surgeries with satisfactory outcomes in minimizing gross blood loss and transfusion demands. However, concerns remain that intravenously delivered TXA (ivTXA) may increase risks of postoperative convulsive seizures and systemic thrombogenicity. Topical use of TXA (tTXA), being more targeted to the surgical bleeding site while minimizing patient systemic exposure to ivTXA, has been successfully applied to attenuate blood losses and transfusion requirements in hip and knee arthroplasty...
February 12, 2019: Trials
Joicemar Tarouco Amaro, João Victor Novaretti, Diego Costa Astur, Elton Luiz Batista Cavalcante, Adilson Góes Rodrigues Junior, Pedro Debieux, Camila Cohen Kaleka, Moisés Cohen
The objective of this study was to determine in vivo knee kinematics and clinical outcomes of patients who underwent fixed- and mobile-bearing total knee arthroplasty (TKA) at 1- and 2-year follow-up. This prospective double-blinded randomized controlled trial was performed from November 2011 to December 2012. A total of 64 patients were randomized to fixed- and mobile-bearing TKA groups (32 patients in each group). All patients were evaluated with the following: three-dimensional in vivo knee kinematics analysis during gait, stepping up and stepping down stair steps, and getting up from and sitting on a chair; and knee range of motion and patient-reported outcome measures (Knee Outcome Survey Activities of Daily Living Scale [KOS-ADLS] and pain visual analog scale [VAS]) at 1- and 2-year follow-up...
February 12, 2019: Journal of Knee Surgery
Kyoung Ho Yoon, Eung Ju Kim, Yoo Beom Kwon, Sang-Gyun Kim
BACKGROUND: Biomechanical studies have shown that double-bundle (DB) posterior cruciate ligament reconstruction (PCLR) is better than single-bundle (SB) PCLR in restoring normal biomechanical function and stability. However, most clinical studies report no differences between the technical methods, and there is yet no long-term clinical comparative study. HYPOTHESIS: DB PCLR would show superior results and survivorship outcomes to those of SB PCLR in long-term follow-up...
February 12, 2019: American Journal of Sports Medicine
Jason Wong, Taylor Murtaugh, Akshay Lakra, H John Cooper, Roshan P Shah, Jeffrey A Geller
PURPOSE: Unicompartmental knee arthroplasty (UKA) is effective for treating degenerative joint disease in a single compartment. Robotic-arm-assisted arthroplasty (RAA) has gained popularity and has theoretical benefits of improved outcomes over conventional (CONV) UKA due to the technical precision of bone preparation. This study compares the short-term clinical outcomes, including survivorship and patient-reported functional outcomes, for a series of medial UKAs performed with RAA and CONV...
February 12, 2019: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Zachary W Sisko, Edward M Vasarhelyi, Lyndsay E Somerville, Douglas D Naudie, Steven J MacDonald, Richard W McCalden
BACKGROUND: The purpose of this study is to compare surgical and clinical outcomes between matched groups of morbidly obese (body mass index [BMI] >40 kg/m2 ) and non-morbidly obese (BMI <40 kg/m2 ) patients undergoing first-time revision total knee arthroplasty with a minimum 5-year follow-up. METHODS: Two groups of 87 patients (BMI >40 or <40 kg/m2 ) were matched 1:1 based on age at the time of revision, gender, and diagnosis for revision (aseptic or septic causes)...
January 14, 2019: Journal of Arthroplasty
Toby Jennison, Rathan Yarlagadda
INTRODUCTION: Interprosthetic fractures occur between a total knee replacement and a femoral stem of either a hemiarthroplasty or total hip replacement. The number of interprosthetic fractures will increase as the number of joint replacements rises. There is currently a paucity of literature looking at the outcomes of interprosthetic fractures. Therefore, we performed a retrospective study to: (1) determine fracture union in patients following surgical treatment of a femoral interprosthetic fracture, (2) measure outcomes included mortality and complications...
February 7, 2019: Orthopaedics & Traumatology, Surgery & Research: OTSR
Xu-Dong Jiang, Han-Long Zheng, Yu-Ping Yang
PURPOSE: To evaluate the clinical outcome in patients who received anterior cruciate ligament (ACL) reconstruction via anteromedial portal with or without posterior wall blowout. METHODS: Twenty patients with ruptured ACL, who have received ACL reconstruction via anteromedial portal between Apr 2012 and Oct 2013 were enrolled. According to the conditions of posterior wall, the patients were divided into 2 groups: posterior wall blowout group (10 patients) and posterior wall intact group (10 patients)...
January 21, 2019: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
Brittany Hornby, Rebecca McClellan, Lucy Buckley, Kimberley Carson, Tiffany Gooding, Hilary J Vernon
BACKGROUND: Barth syndrome (BTHS) is an X-linked disorder caused by defects in TAZ with key clinical features including cardiomyopathy, neutropenia and skeletal myopathy. In order to gain a better understanding of the range of clinical features, identify targets for monitoring, and increase knowledge of natural history of the disease, we conducted muscle strength testing, functional exercise capacity testing, physical activity assessment, balance assessment and motion reaction time testing in 33 affected individuals and 14 controls...
February 11, 2019: Orphanet Journal of Rare Diseases
Estêvão R Monteiro, Pablo B Costa, Victor Gonçalves Corrêa Neto, Barbara J Hoogenboom, James Steele, Jefferson da Silva Novaes
Monteiro, ER, Costa, PB, Corrêa Neto, VG, Hoogenboom, BJ, Steele, J, and da Silva Novaes, J. Posterior thigh foam rolling increases knee extension fatigue and passive shoulder range-of-motion. J Strength Cond Res XX(X): 000-000, 2019-The purpose of this study was to analyze the acute effects of different foam rolling (FR) volumes on knee extensors fatigue and shoulder passive range-of-motion (PROM). Twelve recreationally active women were recruited for participation in 2 experiments separated by 3 weeks, and the same subjects performed all procedures in each experiment...
February 6, 2019: Journal of Strength and Conditioning Research
Kyoung-Tak Kang, Yong-Gon Koh, Kyoung-Mi Park, Jun-Sang Lee, Sae Kwang Kwon
BACKGROUND: The conservation of the joint anatomy is an important factor in total knee arthroplasty (TKA). The restoration of the femoral posterior condylar offset (PCO) has been well known to influence the clinical outcome after TKA. OBJECTIVE: The purpose of this study was to determine the mechanism of PCO in finite element models with conservation of subject anatomy and different PCO of ±1, ±2, ±3 mm in posterior direction using posterior cruciate ligament-retaining TKA...
February 5, 2019: Bio-medical Materials and Engineering
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