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https://www.readbyqxmd.com/read/28203596/intra-articular-implantation-of-mesenchymal-stem-cells-part-2-a-review-of-the-literature-for-meniscal-regeneration
#1
Matthew J Kraeutler, Justin J Mitchell, Jorge Chahla, Eric C McCarty, Cecilia Pascual-Garrido
Knee osteoarthritis (OA) after partial or total meniscectomy is a prevalent issue that patients must face. Various methods of replacing meniscal tissue have been studied to avoid this progression, including meniscal allograft transplantation, meniscal scaffolds, and synthetic meniscus replacement. Studies have shown that meniscal scaffolds may improve symptoms but have not been shown to prevent progression of OA. Recently, mesenchymal stem cells (MSCs) have been proposed as a possible biological therapy for meniscal regeneration...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28160029/-partial-joint-replacement-of-the-knee-a-sophisticated-technique
#2
EDITORIAL
M Rudert, W Petersen
No abstract text is available yet for this article.
February 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28148437/-therapeutic-approaches-to-gonarthrosis
#3
Jean-Noël Argenson, Sébastien Parratte, Matthieu Ollivier
Often linked to sequelae of a knee injury or knee deformities, gonarthrosis is the most frequent form of osteoarthritis of the limbs. A variety of methods and therapies can be used to treat it. For advanced conditions, treatment may involve partial or total replacement.
August 2016: Revue de L'infirmière
https://www.readbyqxmd.com/read/28144717/-individualized-unicondylar-knee-replacement-use-of-patient-specific-implants-and-instruments
#4
J Arnholdt, B M Holzapfel, L Sefrin, M Rudert, J Beckmann, A F Steinert
OBJECTIVE: Unicompartmental knee replacement in patients with osteoarthritis (OA) of the medial compartment. Individualized instruments and implants with a planning protocol for optimal fit. The individualized instruments and implants (ConforMIS Inc.; Burlington, MA, USA) are manufactured based on a computed tomography scan of the affected lower extremity and are provided together with a planning protocol (iView®) of the surgery. INDICATIONS: Unicompartmental OA of the knee (Kellgren & Lawrence stage IV) or Morbus Ahlbäck after unsuccessful conservative or joint preserving surgery...
February 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28144716/bicompartmental-individualized-knee-replacement-use-of-patient-specific-implants-and-instruments-iduo%C3%A2
#5
A F Steinert, J Beckmann, B M Holzapfel, M Rudert, J Arnholdt
OBJECTIVE: Bicompartmental knee replacement in patients with combined osteoarthritis (OA) of the medial or lateral and patellofemoral compartment. Patient-specific instruments and implants (ConforMIS iDuo™) with a planning protocol for optimal implant fit. INDICATIONS: Bicompartmental OA of the knee (Kellgren & Lawrence stage IV) affecting both the medial or lateral and patellofemoral compartment after unsuccessful conservative or joint-preserving surgery. CONTRAINDICATIONS: Tricompartmental OA, knee ligament instabilities, knee deformities >15° (varus, valgus, extension deficit)...
February 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28131634/comminuted-intraarticular-fractures-of-the-tibial-plateau-lead-to-posttraumatic-osteoarthritis-of-the-knee-current-treatment-review
#6
REVIEW
Matthias Aurich, Veit Koenig, Gunther Hofmann
Posttraumatic osteoarthritis (PTOA) of the knee is a common complication after intra- and extra-articular fractures. Moreover, PTOA may also be a result of isolated cartilage defects, meniscus resections, and ligament injuries. There are various methods of treatment of knee joint fractures. However, in the final stage of a PTOA, when nonoperative treatment fails, endoprosthetic joint replacement is the method of choice. Primary total knee replacement (TKR) for the treatment for a fracture of the knee joint is a rare indication, even at major treatment centers...
January 25, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28128085/antiphospholipid-syndrome-with-anti%C3%AE-2glicoprotein-1-antibodies-as-the-cause-of-recurrent-tibial-vein-thrombosis-in-sapho-syndrome
#7
Hanna Przepiera-Będzak, Marek Brzosko
The antiphospholipid antibody syndrome is defined by the presence of antiphospholipid antibodies in patients with recurrent venous or arterial thromboembolism (1). SAPHO syndrome is a rare disease, characterized by specific clinical manifestations of synovitis, acne pustulosis, hyperostosis, and osteitis. It is a disease that manifests with a combination of osseous and articular manifestations associated with skin lesions (2). Venous thrombosis complicating SAPHO syndrome seems to be uncommon with an unclear pathogenesis (3-9)...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28103308/results-after-cementless-medial-oxford-unicompartmental-knee-replacement-incidence-of-radiolucent-lines
#8
Benjamin Panzram, Ines Bertlich, Tobias Reiner, Tilman Walker, Sébastien Hagmann, Marc-André Weber, Tobias Gotterbarm
PURPOSE: Tibial radiolucent lines (RL) are commonly seen in cemented unicompartmental knee replacement (UKR). In the postoperative course, they can be misinterpreted as signs of loosening, thus leading to unnecessary revision. Since 2004, a cementless OUKR is available. First studies and registry data have shown equally good clinical results of cementless OUKR compared to the cemented version and a significantly reduced incidence of RL in cementless implants. METHODS: This single-centre retrospective cohort study includes the first 30 UKR (27 patients) implanted between 2007 and 2009 with a mean follow-up of 5 years...
2017: PloS One
https://www.readbyqxmd.com/read/27916580/annual-revision-rates-of-partial-versus-total-knee-arthroplasty-a-comparative-meta-analysis
#9
REVIEW
Harshvardhan Chawla, Jelle P van der List, Alexander B Christ, Maximiliano R Sobrero, Hendrik A Zuiderbaan, Andrew D Pearle
BACKGROUND: Utilization of unicompartmental knee arthroplasty (UKA) and patellofemoral arthroplasty (PFA) as alternatives to total knee arthroplasty (TKA) for unicompartmental knee osteoarthritis (OA) has increased. However, no single resource consolidates survivorship data between TKA and partial resurfacing options for each variant of unicompartmental OA. This meta-analysis compared survivorship between TKA and medial UKA (MUKA), lateral UKA (LUKA) and PFA using annual revision rate as a standardized metric...
December 1, 2016: Knee
https://www.readbyqxmd.com/read/27914627/comparison-of-in-vivo-measured-loads-in-knee-hip-and-spinal-implants-during-level-walking
#10
Philipp Damm, Ines Kutzner, Georg Bergmann, Antonius Rohlmann, Hendrik Schmidt
Walking is a task that we seek to understand because it is the most relevant human locomotion. Walking causes complex loading patterns and high load magnitudes within the human body. This work summarizes partially published load data collected in earlier in vivo measurement studies on 9 patients with telemeterized knee endoprostheses, 10 with hip endoprostheses and 5 with vertebral body replacements. Moreover, for the 19 endoprosthesis patients, additional simultaneously measured and previously unreported ground reaction forces are presented...
January 25, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/27891054/patellofemoral-joint-arthroplasty-our-experience-in-isolated-patellofemoral-and-bicompartmental-arthritic-knees
#11
L Sabatini, M Schirò, F Atzori, G Ferrero, A Massè
INTRODUCTION: Isolated patellofemoral (PF) arthritis is rare, and there is no complete agreement about the best surgical treatment. The operative treatments are total knee arthroplasty and patellofemoral replacement (PFR). The incidence of many early complications of PF arthroplasty has decreased with the introduction of newer designs. Nowadays, the main cause of revision surgery is the progression of tibiofemoral osteoarthritis. In the past, PF arthroplasty was contraindicated in patients with evidence of osteoarthritis or pain in medial or lateral tibiofemoral compartments...
2016: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27817975/long-term-result-of-arthroplasty-in-the-treatment-of-a-case-of-ochronotic-arthropathy
#12
Sinan Karaoğlu, Fatih Karaaslan, Musa Uğur Mermerkaya
Alkaptonuria is a rare metabolic disease caused by a partial or total deficiency of homogentisic acid oxidase, which results in excess homogentisic acid (HGA) levels. Homogentisic acid and its oxidation products can accumulate in hyaline cartilage, tendons, and ligaments. A 55-year-old male was admitted complaining of worsening chronic pain in his left knee. A radiographic evaluation showed tricompartmental end- stage osteoarthritis. A cemented total knee replacement was performed. At the 10-year follow-up, he had returned to full activity, had no knee pain, and was very satisfied with the outcome...
October 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27685767/infrapatellar-fat-pad-excision-during-total-knee-arthroplasty-did-not-alter-the-patellar-tendon-length-a-5-year-follow-up-study
#13
Yunus İmren, Süleyman Semih Dedeoğlu, Murat Çakar, Haluk Çabuk, Tahsin Olgun Bayraktar, Hakan Gürbüz
Partial or total resection of the infrapatellar fat pad (IPFP) helps surgeon improve access to lateral tibial plateau for better placement of the knee prosthesis. We aimed to investigate the effect of IPFP excision on clinical and radiologic outcomes including patellar tendon length (PTL), range of motion, and functional scores after total knee arthroplasty (TKA) at 5-year follow-up. We retrospectively evaluated postoperative first X-rays (day 0) and postoperative final 5-year control views of 228 knees in patients with primary osteoarthritis who underwent TKA between September 2006 and December 2009 in our hospital...
September 29, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27648577/chronic-quadriceps-tendon-rupture-after-total-knee-arthroplasty-augmented-with-synthetic-mesh
#14
Amaia Ormaza, Jesús Moreta, Javier Mosquera, Oskar Sáez de Ugarte, José Luis Martinez-de Los Mozos
Tear of the quadriceps tendon after revision or primary total knee arthroplasty is a rare complication, but when it occurs, this injury has serious functional consequences. In complete tears, the outcome of direct repair is unpredictable, and several authors recommend that the suture should be reinforced. Several techniques have been described, including the use of autografts, allografts, and synthetic mesh. The goal of this study was to assess the outcomes of a reconstruction technique augmented with synthetic mesh...
September 19, 2016: Orthopedics
https://www.readbyqxmd.com/read/27633693/-therapeutic-approaches-to-gonarthrosis
#15
Jean-Noël Argenson, Sébastien Parratte, Matthieu Ollivier
Often linked to sequelae of a knee injury or knee deformities, gonarthrosis is the most frequent form of osteoarthritis of the limbs. A variety of methods and therapies can be used to treat it. For advanced conditions, treatment may involve partial or total replacement.
August 2016: Revue de L'infirmière
https://www.readbyqxmd.com/read/27583257/factors-predicting-meniscal-allograft-transplantation-failure
#16
Ben Parkinson, Nicholas Smith, Laura Asplin, Peter Thompson, Tim Spalding
BACKGROUND: Meniscal allograft transplantation (MAT) is performed to improve symptoms and function in patients with a meniscal-deficient compartment of the knee. Numerous studies have shown a consistent improvement in patient-reported outcomes, but high failure rates have been reported by some studies. The typical patients undergoing MAT often have multiple other pathologies that require treatment at the time of surgery. The factors that predict failure of a meniscal allograft within this complex patient group are not clearly defined...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27574038/design-and-virtual-evaluation-of-a-customized-surface-guided-knee-implant
#17
Shabnam Pejhan, Eric Bohm, Jan-Mels Brandt, Urs Wyss
Although total knee arthroplasty is generally a successful operation, many studies have shown that it results in significant alterations in the kinematics of the joint, which cause limitations in performing the activities of daily living. This study aimed to define the design features for a customized surface-guided total knee replacement and to evaluate the kinematic outcomes. Magnetic resonance imaging data of the knee joint are used to generate the design features as they relate to the functionality of the implant...
October 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27525608/evaluation-at-long-term-follow-up-of-medial-unicompartmental-knee-arthroplasty-in-young-patients
#18
Nader Naouar, Hamdi Kaziz, Thabet Mouelhi, Karim Bouattour, Mohamed Mseddi, Mohamed Laziz Ben Ayeche
BACKGROUND: The treatment of isolated internal tibiofemoral knee osteoarthritis on young and active patients is controversial. This treatment can be a high tibial osteotomy or a joint replacement that can be a partial unicompartmental knee arthroplasty (UKA) or total knee replacement (TKR). The aim of our study is the long-term evaluation of functional outcome of partial unicompartmental knee arthroplasty (UKA) in elderly patients under than 60 years. METHODS: This is a retrospective study of 25 unicompartmental knee arthroplasties in 22 patients, collected between1993 and 2003 whose age was less than 60 years...
January 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/27157145/the-cost-effectiveness-of-meniscal-repair-versus-partial-meniscectomy-a-model-based-projection-for-the-united-states
#19
Brian T Feeley, Shan Liu, Abigail M Garner, Alan L Zhang, Jan B Pietzsch
BACKGROUND: Meniscal tears are the most common knee condition requiring surgery, and represent a substantial disease burden with clinical and cost implications. The success rates partial meniscectomy and meniscal repair have been studied, but limited information is available investigating their long-term costs and effects. Our objective was to assess the long-term cost-effectiveness of meniscal repair compared to meniscectomy. METHODS: We constructed a decision-analytic Markov disease progression model, using strategy-specific failure rates and treatment-specific probabilities for the development of osteoarthritis (OA) and subsequent knee replacement (TKR)...
August 2016: Knee
https://www.readbyqxmd.com/read/27142969/-patellar-bone-deficiency-in-revision-total-knee-arthroplasty
#20
J Kloiber, E Goldenitsch, P Ritschl
BACKGROUND: Patellar bone deficiency in revision total knee arthroplasty (TKA) determines the surgical procedure. Different reconstructive and ablative techniques, dependent on the remaining bone stock, are described. INDICATION: The primary patella implant can be retained in up to 50 % of revision situations. Reasons for replacement are aseptic and septic loosening, implant failure, expanding osteolysis, maltracking of the patella and "metal-backed" prosthesis...
May 2016: Der Orthopäde
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