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https://www.readbyqxmd.com/read/30017510/acute-effects-of-different-orthotic-interventions-on-knee-loading-parameters-in-knee-osteoarthritis-patients-with-varus-malalignment
#1
Elsa Mauricio, Maik Sliepen, Dieter Rosenbaum
BACKGROUND: Knee osteoarthritis (KOA) is the most common form of arthritis with an estimated lifetime prevalence of 45%. The use of orthotic devices is a generally accepted conservative therapy in KOA. A new conservative treatment is an ankle-foot orthosis (AFO); however, studies on the biomechanical effects are limited. The aim of this study was to examine the acute effects of different orthotic devices (AFO, knee brace and wedged shoes) on (un)loading parameters in subjects with KOA...
July 14, 2018: Knee
https://www.readbyqxmd.com/read/30004559/impact-of-knee-varus-and-valgus-deformity-on-alignment-in-lower-extremities-after-total-knee-arthroplasty-tka
#2
F Tian, X-H Zang, Y-S Sun
OBJECTIVE: To investigate the impact of knee varus and valgus in varying degrees on the alignment in lower extremities of patients who received the total knee arthroplasty (TKA). PATIENTS AND METHODS: We retrospectively analyzed the condition of varus and valgus deformity in full-length X-ray films of double lower extremities in weight-bearing position of 120 patients before and after they firstly received the TKA between March 2012 and May 2014 to discover the impact of knee varus and valgus in varying degrees on the alignment in lower extremities of patients who received the total knee arthroplasty (TKA)...
July 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29981835/knee-thrust-prevalence-and-normative-hip-knee-ankle-angle-deviation-values-among-healthy-individuals-across-the-lifespan
#3
Yves Y Palad, Andrew M Leaver, Marnee J McKay, Jennifer N Baldwin, Frances Rom M Lunar, Faith Deanne Mari Caube, Joshua Burns, Milena Simic
OBJECTIVE: To report the prevalence of varus thrust and normative values for hip-knee-ankle (HKA) angle deviation across the lifespan, and to explore associations between HKA angle deviation and selected clinical factors. DESIGN: This was a cross-sectional observational study of 572 participants from the 1000 Norms Project, aged 3-101 years and who self-reported as being healthy. Video recordings (2D) of frontal plane gait were reviewed by physiotherapists for presence of knee thrust and quantification of HKA angle deviation (the difference between HKA angle at initial contact and mid-stance)...
July 5, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29970326/does-the-preoperative-varus-deformity-influence-the-survival-of-postoperative-neutral-aligned-tkas-an-analysis-with-a-minimum-5-year-follow-up
#4
Sung-Mok Oh, Seong-Il Bin, Jae-Young Kim, Hyun-Ik Cho, Bum-Sik Lee, Jong-Min Kim
BACKGROUND: Postoperative neutral alignment may be an important factor for longevity of total knee arthroplasty (TKA). In knees with severe varus deformity, greater soft tissue release and bone resection were required to achieve neutral alignment. We investigated the relationship between the severity of preoperative varus deformity and longevity of neutral-aligned TKAs. METHODS: Of the 723 knees in patients who underwent primary TKA for varus-type osteoarthritis between November 1998 and June 2009, 496 knees aligned neutrally (the postoperative mechanical hip-knee-ankle [HKA] axis angle ranged between -3° and 3°) and followed up for at least 5 years were included in the study...
June 9, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29961097/due-to-great-variability-fixed-hks-angle-for-alignment-of-the-distal-cut-leads-to-a-significant-error-in-coronal-tka-orientation
#5
Maurin Lampart, Henrik Behrend, Lukas B Moser, Michael T Hirschmann
PURPOSE: For coronal alignment in total knee arthroplasty (TKA) most surgeons use the patient's individual hip-knee shaft (HKS) angle (angle between the anatomical axis and the mechanical axis of the femur). The major problem of the sole use of HKS angle is that the individual patient's distal femoral asymmetry is not considered. The purpose of this study was to determine the variability of the HKS angle, the mechanical femoral angle (FMA) and to evaluate whether or not one of the two angles is more important for TKA alignment strategy...
June 30, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29934783/-osteotomies-of-the-distal-tibia
#6
M G Walcher, L Fraissler, C Konrads, P Plumhoff, M Hoberg, M Rudert
OBJECTIVE: Restoration of physiological alignment of the distal tibia and thereby restoration of physiological loading of the ankle joint; joint preservation in asymmetric degenerative arthritis of the ankle. INDICATIONS: Congenital deformities of the distal tibia; acquired deformities of the distal tibia; asymmetric degenerative arthritis with partially preserved cartilage. CONTRAINDICATIONS: Absolute contraindications comprise severe nicotine abuse, Charcot arthropathy, peripheral polyneuropathy, relevant peripheral arterial vessel disease, poor local soft tissue condition, acute infection and extensive cartilage damage grade 3-4 in the Outerbridge classification in the complete joint...
June 22, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29933184/carrying-asymmetric-loads-during-stair-negotiation-loaded-limb-stance-vs-unloaded-limb-stance
#7
Junsig Wang, Jason C Gillette
BACKGROUND: Individuals often carry items in one hand instead of both hands during activities of daily living. Research Question The purpose of this study was to investigate low back and lower extremity frontal plane moments for loaded limb stance and unloaded limb stance when carrying symmetric and asymmetric loads during stair negotiation. METHODS: Participants were instructed to ascend and descend a three-step staircase at preferred pace using a right leg lead and a left leg lead for each load condition: no load, 20% body weight (BW) bilateral load, and 20% BW unilateral load...
June 19, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29933182/healthy-3d-knee-kinematics-during-gait-differences-between-women-and-men-and-correlation-with-x-ray-alignment
#8
Julien Clément, Panagiota Toliopoulos, Nicola Hagemeister, François Desmeules, Alexandre Fuentes, Pascal-André Vendittoli
BACKGROUND: Normal 3D knee kinematics during gait is still not well understood, especially regarding differences between women and men. RESEARCH QUESTION: The objective of the present study was to characterize 3D knee kinematics during gait in healthy women and men with a validated tool. METHODS: Knee kinematics was analysed with the KneeKG™ system in 90 healthy subjects (49 females and 41 males). 3D knee rotations were compared between women and men, and between right and left knees...
June 11, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29913354/benefits-of-an-increased-prosthetic-ankle-range-of-motion-for-individuals-with-a-trans-tibial-amputation-walking-with-a-new-prosthetic-foot
#9
Daniel W W Heitzmann, Firooz Salami, Alan R De Asha, Julia Block, Cornelia Putz, Sebastian I Wolf, Merkur Alimusaj
BACKGROUND: Individuals with trans-tibial amputation show a greater peak prosthetic ankle power (push- off) when using energy storing and returning (ESAR) prosthetic feet as compared to solid-ankle cushion-heel feet. ESAR feet further contribute to the users' body support and thus limit prosthetic ankle motion. To improve ankle motion, articulating prosthetic feet have been introduced. However, articulating feet may diminish push-off. RESEARCH QUESTION: Does a novel prosthetic foot, with a serial layout of carbon fibre leaf springs, connected by a multi-centre joint construction, have advantages in kinematics and kinetics over a conventional ESAR prosthetic foot?> METHODS: Eleven individuals with unilateral trans-tibial amputation were fitted with the novel foot (NF) and a conventional ESAR Foot (CF) and underwent 3D gait analysis...
June 11, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29912600/a-non-invasive-measurement-of-the-knee-contact-force-using-a-subject-specific-musculoskeletal-model-to-investigate-osteotomy
#10
Fateme Badie, Hamid Reza Katouzian, Mostafa Rostami
The varus knee has been defined as a Hip-Knee-Ankle alignment of less than 180 degrees. Varus knee alignment increases the load on the medial knee and also the risk of osteoarthritis. High tibial osteotomy has been designed to modify the malalignment of varus knee. The aim of this study was to investigate the osteotomy effects on knee adduction moment (KAM) and contact forces using a musculoskeletal and subject-specific knee model. A patient with varus knee and no symptoms of any other disease or disability participated in this study...
June 18, 2018: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/29911919/innovative-treatment-for-pes-cavovarus-a-pilot-study-of-13-children
#11
Ignacio Sanpera, Guillem Frontera-Juan, Julia Sanpera-Iglesias, Laura Corominas-Frances
Background and purpose - Pes cavovarus (PCV) is a complex deformity, frequently related to neurological conditions and associated with foot pain, callosities, and walking instability. The deformity has the tendency to increase during growth. Orthotic treatment is ineffective and surgery may be troublesome. We present the preliminary results of a new mini-invasive surgical technique for correction of this foot deformity. Patients and methods - We operated on 13 children (24 feet), age 7-13 years. In 7 children the deformity was neurological in origin...
June 18, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29907912/temporary-epiphysiodesis-using-the-flextack%C3%A2-implant-tension-band-featuring-a-modified-explantation-technique
#12
REVIEW
S Koob, M Kehrer, M Hettchen, T Jansen, J Schmolders, R Placzek
OBJECTIVE: Presenting the implantation of the PediatrOS™ FlexTack™ (Merete, Berlin, Germany) for growth guidance and a modified explantation procedure to facilitate explantation and prevent bone and soft tissue damage. INDICATIONS: Implantation: Genua vara and valga, coxa vara, varus and valgus deviation of the ankle joint, the elbow joint and the wrist Modified Explantation: Removal of the implant after successful limb correction or dislocation of the implant...
June 15, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29876639/a-new-minimally-invasive-method-for-anatomic-reconstruction-of-the-lateral-ankle-ligaments-with-a-tightrope-system
#13
Yongxing Cao, Yang Xu, Yuan Hong, Xiangyang Xu
BACKGROUND: Several minimally invasive anatomic reconstruction techniques of the lateral ligaments have been introduced for the treatment of chronic lateral ankle instability. However, these strategies may not always follow accurate ligament anatomic attachments, especially in the construction of the fibular bone tunnels. OBJECTIVES: This study reported a new percutaneous technique for reconstruction of the ligaments of lateral ankle anatomically with a Tightrope system...
June 6, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29868428/joystick-of-the-talus-for-correcting-malalignment-during-arthroscopic-ankle-arthrodesis-a-surgical-tip
#14
Alessio Bernasconi, Nazim Mehdi, Julien Laborde, Cesar de Cesar Netto, Louis Dagneaux, François Lintz
Ankle arthrodesis has been widely reported as an effective solution in treating tibiotalar joint osteoarthritis. The arthroscopic tibiotalar approach for arthrodesis has also been proven to give excellent results in terms of bone fusion rates and reduction of wound-related pain and complications. Historically, ankle malalignment has represented one of the main contraindications for the arthroscopic procedure, but interestingly some investigators have shown that the coronal joint deformity may be addressed arthroscopically as well...
May 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29861259/effect-of-kinesio-taping-on-lower-limb-joint-powers-in-individuals-with-genu-varum
#15
AmirAli Jafarnezhadgero, Morteza Madadi Shad, Mahdi Majlesi, Matteo Zago
OBJECTIVE: Therapeutic lateral knee joint muscle taping potentially offers a low-risk, economical and effective alternative for the clinical treatment of light to moderate knee overload, due to misalignment in patients with genu varum. In this study, we aimed at investigating the immediate effect of lateral knee joint muscular kinesio taping on lower limb joint powers, during the stance phase of walking, in individuals with genu varum. METHODS: Fifteen male subjects with genu varum misalignment (age: 24...
April 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29806409/-ilizarov-technique-combined-with-limited-surgery-for-correction-of-spastic-clubfoot-in-adolescents-with-cerebral-palsy
#16
Chunzhi Gao, Han Wu, Peng Xiao, Xuejian Wu
Objective: To evaluate the effectiveness of Ilizarov technique combined with soft tissue release and muscle strength balance in the treatment of spastic clubfoot in adolescents with cerebral palsy. Methods: A retrospective analysis of clinical data of 29 cases (33 feet) of cerebral palsy spastic clubfoot deformity conformed to the selection criteria between June 2011 and September 2016. Among them, 17 were male (20 feet) and 12 were female (13 feet) with an age range from 13 to 28 years (mean, 17...
February 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29806320/-application-of-three-dimensional-printing-in-the-operation-of-distal-tibia-fracture-involving-epiphyseal-plate-injury-for-teenagers
#17
Jingxin Zhao, Yachang Ma, Dong Han, Yu Jin
Objective: To investigate the application value of three-dimensional (3-D) printing technology in the operation of distal tibia fracture involving epiphyseal plate injury for teenagers. Methods: The retrospective analysis was conducted on the clinical data of 16 cases of children patients with distal tibia fracture involving epiphyseal plate injury undergoing the operation by using of 3-D printing technology between January 2014 and December 2015. There were 12 males and 4 females with an age of 9-14 years (mean, 12...
October 1, 2017: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29805102/the-effectiveness-of-medial-femoral-epicondyle-up-sliding-osteotomy-to-correct-severe-valgus-deformity-in-primary-total-knee-arthroplasty
#18
Ping Mou, Yi Zeng, Jing Yang, Hang Zhong, Shi-Jiu Yin, Rui-Bo Li
BACKGROUND: While many surgical techniques can achieve neutral limb alignment and soft tissue balance in severe valgus deformity during total knee arthroplasty (TKA), few published reports concern medial femoral epicondyle up-sliding osteotomy. METHODS: A prospective investigation was conducted of patients with severe valgus deformities who underwent medial femoral epicondyle up-sliding osteotomy. Clinical measurements, radiological evaluation, and complication data were recorded...
May 3, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29791703/biological-intercalary-reconstruction-with-bone-grafts-after-joint-sparing-resection-of-the-lower-limb-is-this-an-effective-and-durable-solution-for-joint-preservation
#19
Francesco Muratori, Francesca Totti, Antonio D'Arienzo, Maurizio Scorianz, Guido Scoccianti, Giovanni Beltrami, Francesco Rosario Campo, Carmine Citarelli, Rodolfo Capanna, Domenico Andrea Campanacci
Due to advances in neoadjuvant therapies and preoperative imaging modalities, joint-sparing resections have become appealing in bone tumor surgery. However, the intercalary reconstruction of metadiaphyseal bone defects of the femur and the tibia after juxta-articular tumor resection remains challenging. Both biological and prosthetic reconstructions have been used for joint-sparing resections, but little is known about the long-term outcome of these procedures. The authors reviewed a consecutive series of 64 patients treated with joint-sparing intercalary resection and reconstruction with bone grafts...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29779992/radiologic-factors-affecting-ankle-pain-before-and-after-total-knee-arthroplasty-for-the-varus-osteoarthritic-knee
#20
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
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