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Knee osteotomy

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https://www.readbyqxmd.com/read/28914341/knee-joint-preservation-a-call-for-daily-practice-revival-of-realignment-surgery-and-osteotomies-around-the-knee
#1
EDITORIAL
Ronald J van Heerwaarden, Michael T Hirschmann
No abstract text is available yet for this article.
September 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28903017/is-a-high-tibial-osteotomy-superior-to-non-surgical-treatment-in-patients-with-varus-malaligned-medial-knee-osteoarthritis-a-propensity-matched-study-using-2-rct-datasets
#2
M V van Outeren, J H Waarsing, R W Brouwer, J A N Verhaar, M Reijman, S M A Bierma-Zeinstra
OBJECTIVE: No randomized controlled trial (RCT) has compared the high tibial osteotomy (HTO) with non-surgical treatment in patients with medial knee osteoarthritis and varus malalignment. The aim was to compare the effectiveness of an unloader brace treatment or a usual care program to the HTO regarding pain severity and knee function. DESIGN: Surgical treatment (HTO) to two non-surgical options was compared by combining the data of two RCTs. One RCT (n=117) compared an unloader brace to usual care treatment; the other RCT (n=92) compared closing to opening wedge HTO...
September 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28892256/possibility-of-quantitative-t2-mapping-mri-of-cartilage-near-metal-in-high-tibial-osteotomy-a-human-cadaver-study
#3
Joost Verschueren, Duncan E Meuffels, Esther E Bron, Stefan Klein, Gert-Jan Kleinrensink, Jan A N Verhaar, Sita M A Bierma-Zeinstra, Gabriel P Krestin, Piotr A Wielopolski, Max Reijman, Edwin H G Oei
T2-mapping is a widely used quantitative MRI technique in osteoarthritis research. An important challenge for its application in the context of high tibial osteotomy (HTO) is the presence of metallic fixation devices. In this study, we evaluated the possibility of performing T2-mapping after a HTO, by assessing the extent of magnetic susceptibility artifacts and the influence on T2 relaxation times caused by two commonly used fixation devices. T2-mapping with a 3D fast spin-echo sequence at 3 Tesla was performed on 11 human cadaveric knee joints before and after implantation of a titanium plate and screws (n = 5) or cobalt chrome staples(n = 6)...
September 11, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28888904/changes-in-biomechanical-risk-factors-for-knee-osteoarthritis-and-their-association-with-5-year-clinically-important-improvement-after-limb-realignment-surgery
#4
Trevor B Birmingham, Rebecca Moyer, Kristyn Leitch, Bert Chesworth, Dianne Bryant, Kevin Willits, Robert Litchfield, Peter J Fowler, J Robert Giffin
OBJECTIVE: To evaluate 5-year outcomes after lower limb realignment and test the hypothesis that surgery-induced changes in selected biomechanical risk factors for medial knee OA are associated with clinically important improvements. DESIGN: We prospectively evaluated patient-reported outcomes, full-limb standing radiographs and gait biomechanics before, 6 months (surgery-induced change) and 5 years after medial opening wedge high tibial osteotomy (HTO) in 170 patients (46...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888524/total-knee-arthroplasty-after-opening-versus-closing-wedge-high-tibial-osteotomy-a-135-case-series-with-minimum-5-year-follow-up
#5
Matthieu Ehlinger, Adrien D'ambrosio, Pascal Vie, Sylvain Leclerc, François Bonnomet, Paul Bonnevialle, Sébastien Lustig, Sébastien Parratte, Michel Colmar, Jean-Noël Argenson
INTRODUCTION: High tibial osteotomy (HTO) is effective in treating isolated medial osteoarthritis of the knee, but subsequent deterioration is inevitable, and total knee arthroplasty (TKA) is then an option. The present study sought to compare TKA following medial opening-wedge HTO (OW-HTO) versus lateral closing-wedge HTO (CW-HTO) in terms of intraoperative data and clinical results. The study hypothesis was that there is no significant difference in clinical results or complications in TKA following OW-HTO or CW-HTO...
September 6, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28888229/changes-in-ankle-joint-motion-after-supramalleolar-osteotomy-a-cadaveric-model
#6
Hak Jun Kim, Eui Dong Yeo, Im Joo Rhyu, Soon-Hyuck Lee, Yeon Soo Lee, Young Koo Lee
BACKGROUND: Malalignment of the ankle joint has been found after trauma, by neurological disorders, genetic predisposition and other unidentified factors, and results in asymmetrical joint loading. For a medial open wedge supramalleolar osteotomy(SMO), there are some debates as to whether concurrent fibular osteotomy should be performed. We assessed the changes in motion of ankle joint and plantar pressure after supramalleolar osteotomy without fibular osteotomy. METHODS: Ten lower leg specimens below the knee were prepared from fresh-frozen human cadavers...
September 9, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28887704/-indication-and-limitations-of-meniscus-replacement
#7
REVIEW
C Stärke, S Kopf, R Becker
BACKGROUND: Meniscal lesions are among the most important musculoskeletal disorders and are the most common indication for knee joint arthroplasty. However, the structural integrity and function is rarely retained, and a loss of tissue results. Thus, there is a huge demand for meniscal replacement options. CURRENT PROCEDURES: Autografts were used in the past but did not fulfill expectations. Meniscus allografts have been developed to be a viable treatment option...
September 8, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28885967/outcomes-of-medializing-tibial-tubercle-osteotomy-with-medial-reefing-and-vastus-medialis-obliquus-advancement-coupled-with-lateral-retinacular-z-lengthening-for-recurrent-patellar-instability
#8
Patrick Morrissey, Daniel Christensen, Trevor Tompane, Jared Wolfe, Lance LeClere
PURPOSE: Patella-femoral dislocations, although rare, can result in functionally limiting symptoms and limited return to prior activity levels. The purpose of this study is to report outcomes of a three-in-one patellar realignment surgery for treatment of recurrent patellar instability in a young, active duty military population. METHODS: We conducted a retrospective chart review of all patients who underwent our senior author's three-in-one patellar realignment surgery for recurrent patellar instability in the setting of underlying anatomic malalignment...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28870759/recurrent-patellar-dislocation-with-spontaneous-valgus-knee-deformity-treated-by-distal-femoral-osteotomy-alone-a-report-of-two-cases
#9
Akemi Suzuki, Yuka Kimura, Eiji Sasaki, Atsushi Narita, Michiaki Takagi, Yasuyuki Ishibashi
No abstract text is available yet for this article.
September 1, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28870053/-domestic-external-fixator-application-in-the-treatment-of-limb-deformities-7-289-cases-application-report
#10
S H Qin, B F Guo, X J Zheng, S F Jiao, H T Xia, A M Peng, Q Pan, J C Zang, Z J Wang
Objective: To discuss the clinical application and effects of domestic external fixator in the treatment of patients with malformations of limbs. Methods: A total of 7 289 patients with malformation of limbs who had been operated in Qin Sihe orthopedic surgery team from January 1989 to June 2016 were retrospective analyzed. The patients were treated with domestic external fixator, including 4 033 males and 3 256 females, aging from 2 to 82 years with a mean age of 23.4 years. There were 2 732 patients using Ilizarov external fixator, 4 713 patients using hybrid external fixator, 57 patients using monobrachial external fixator, 232 patients using Ilizarov external fixator and hybrid external fixator...
September 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28864235/alignment-options-for-total-knee-arthroplasty-a-systematic-review
#11
REVIEW
Charles Rivière, Farhad Iranpour, Edouard Auvinet, Stephen Howell, Pascal AVendittoli, Justin Cobb, SébastienParratte
INTRODUCTION: In spite of improvements in implant designs and surgical precision, functional outcomes of mechanically aligned total knee arthroplasty (MA TKA) have plateaued. This suggests probable technical intrinsic limitations that few alternative more anatomical recently promoted surgical techniques are trying to solve. This review aims at (1) classifying the different options to frontally align TKA implants, (2) at comparing their safety and efficacy with the one from MA TKAs, therefore answering the following questions: Does alternative techniques to position TKA improve functional outcomes of TKA (question 1)? Is there any pathoanatomy not suitable for kinematic implantation of a TKA (question 2)? METHODS: A systematic review of the existing literature utilising PubMed and Google Scholar search engines was performed in February 2017...
August 29, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28860685/modyfied-wedge-osteotomy-for-osteoarthritis-of-elbow-secondary-to-osteochondritis-dissecans-in-adolecent-with-multiple-epiphyseal-dysplasia-a-case-report
#12
Takashi Yoshida, Wook-Cheol Kim, Yoshinobu Oka, Masashi Nakase, Atsushi Nishida, Hiroaki Wada, Yuji Arai, Toshikazu Kubo
Multiple epiphyseal dysplasia (MED) may be complicated by osteochondritis dissecans (OCD), most commonly reported in the knee, but involvement of the elbow is very rare. Optimal treatment for MED-associated elbow OCD and treatment outcome have not been established. This report describes the case of an adolescent male patient with elbow OCD treated by arthroscopic drilling at a previous clinic. Progression of osteoarthritis and radial head subluxation were observed. Resection of the osteophytes and modified wedge osteotomy of the lateral condyle were then performed, and a favorable result was obtained by decompression and sufficient congruency of the radiohumeral joint...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860395/no-difference-in-time-dependent-improvement-in-functional-outcome-following-closing-wedge-versus-opening-wedge-high-tibial-osteotomy-a-randomised-controlled-trial-with-two-year-follow-up
#13
T K Nerhus, A Ekeland, G Solberg, B H Olsen, J E Madsen, S Heir
AIMS: The aim of this prospective randomised study was to compare the time course of clinical improvement during the first two years following a closing or opening wedge high tibial osteotomy (HTO). It was hypothesised that there would be no differences in clinical outcome between the two techniques. PATIENTS AND METHODS: Between 2007 and 2013, 70 consecutive patients were randomly allocated to undergo either a closing or opening wedge HTO. All patients had medial compartment osteoarthritis (OA), and were aged between 30 years and 60 years...
September 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28854770/closed-wedge-distal-femoral-osteotomy-with-a-polyaxial-locking-plate-designed-for-the-proximal-tibia-minimum-5-year-outcomes
#14
Ryuichi Nakamura, Kenji Fujita, Rei Omi, Kazunari Kuroda, Masaki Takahashi, Kazumi Ikebuchi, Hitoshi Nishimura, Yasuo Katsuki
Since distal femoral varus osteotomy (DFO) -specific plates had not been available in Japan before 2015, we performed DFO using a plate for tibia. The purpose of this study was to elucidate the efficacy and problems associated with the non-specific plate in DFO. We used NCB-PT plates (Zimmer Inc.) in the upside-down position and the minimum 5-year outcomes were evaluated. The mean preoperative weight bearing line ratio and Japanese Orthopaedic Association score improved from 97.6%±35.8% and 68.0±11.5, respectively, to 44...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854769/comparison-of-mechanical-axis-and-dynamic-range-assessed-with-weight-bearing-radiographs-and-navigation-system-in-closed-wedge-high-tibial-osteotomy
#15
Dae Kyung Bae, Jong Whan Lee, Seong Jin Cho, Sang Jun Song
Purpose: To compare navigation and weight bearing radiographic measurements of mechanical axis (MA) before and after closed wedge high tibial osteotomy (HTO) and to evaluate post-osteotomy changes in MA assessed during application of external varus or valgus force. Materials and Methods: Data from 30 consecutive patients (30 knees) who underwent computer-assisted closed-wedge HTO were prospectively analyzed. Pre- and postoperative weight bearing radiographic evaluation of MA was performed...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854444/total-knee-arthroplasty-in-combination-with-osteotomies-around-the-knee
#16
Justus-Martijn Brinkman, Bas Rutten, Ronald van Heerwaarden
No abstract text is available yet for this article.
August 30, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28854443/osteotomies-around-the-knee-part-ii
#17
Mauricio Kfuri, Philipp Lobenhoffer
No abstract text is available yet for this article.
August 30, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28853192/resection-accuracy-of-patient-specific-cutting-guides-in-total-knee-replacement
#18
Gregory C Wernecke, Scott Taylor, Penny Wernecke, Samuel J MacDessi, Darren B Chen
BACKGROUND: Patient-specific guides (PSGs) have been thoroughly investigated with regards to reconstitution of mechanical alignment in total knee arthroplasty (TKA). The ability to replicate the preoperative surgical plan is essential for optimal outcomes but intraoperative measurements to confirm accurate progression through the operation are limited. This leads to our clinical question: can PSGs replicate the planned bone resection depth during TKA? METHODS: This is a prospective case series of 118 patients who underwent TKA using magnetic resonance imaging-based patient-specific cutting guides...
August 29, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28851264/gap-healing-after-medial-open-wedge-high-tibial-osteotomy-using-injectable-beta-tricalcium-phosphate
#19
Won Chul Choi, Banghyun Kim, Uk Kim, Yohan Lee, Jae-Hwa Kim
PURPOSE: The study aim was to evaluate gap healing after medial open-wedge high tibial osteotomy (MOWHTO) using novel injectable beta-tricalcium phosphate (β-TCP) as gap filler. We also aimed to evaluate radiographic and clinical outcome of MOWHTO using injectable β-TCP. METHODS: Consecutive 28 patients underwent MOWHTO using anatomical locking plate fixation, and β-TCP was injected as gap filler. Serial radiographs and computed tomography were taken at postoperative 3 and 12 months, and gap healing was assessed...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28844344/patellofemoral-contact-pressures-after-patellar-distalization-a-biomechanical-study
#20
Justin S Yang, John P Fulkerson, Elifho Obopilwe, Andreas Voss, Jessica Divenere, Augustus D Mazzocca, Cory M Edgar
PURPOSE: To measure the patellofemoral contact pressure in early flexion after a tibial tubercle distalization osteotomy. METHODS: Ten matched-pair fresh-frozen cadaveric knees were studied. The average Blackburne-Peel ratio of the native knees was 0.91. The knees were placed on a testing rig, with a fixed femur and tibia mobile through 90° of flexion. Individual quadriceps heads and the iliotibial band were separated and loaded with 205 N in anatomic directions using a weighted pulley system...
August 22, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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