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https://www.readbyqxmd.com/read/29896560/single-dose-lidocaine-spinal-anesthesia-in-hip-and-knee-arthroplasty
#1
Nicholas B Frisch, Brian Darrith, Dane C Hansen, Adrienne Wells, Sheila Sanders, Richard A Berger
Background: With the increasing interest in fast recovery and outpatient joint arthroplasty, short-acting local anesthetic agents and minimal narcotic use are preferred. Lidocaine is a fast-onset, short-duration local anesthetic that has been used for many years in spinal anesthesia. However, lidocaine spinal anesthesia has been reported to have a risk of transient neurologic symptoms (TNSs). The purpose of this study is to determine the safety and efficacy of single-dose lidocaine spinal anesthesia in the setting of outpatient joint arthroplasty...
June 2018: Arthroplasty Today
https://www.readbyqxmd.com/read/29896544/two-pegs-are-better-than-one-rare-mode-of-femoral-component-failure-in-unicompartmental-arthroplasty-requiring-revision-to-total-knee-arthroplasty
#2
Ryan Stancil, Nathan Summers, Douglas Van Citters, Adam Sassoon
Femoral component fracture is a rare complication in unicompartmental knee arthroplasty, especially in cemented prostheses. We present a 75-year-old man who presented with a fractured single-peg Vanguard component 9 years postoperatively. He was revised to a total knee arthroplasty with an excellent functional outcome at 1 year. The components were additionally examined at an outside biomechanical engineering laboratory. Theories as to the cause of the component fracture include aseptic loosening due to a thin anterior cement mantle and the single-peg Oxford design...
June 2018: Arthroplasty Today
https://www.readbyqxmd.com/read/29848830/-cartilage-chondrocyte-research-and-osteoarthritis-recent-topics-of-surgical-treatment-for-knee-osteoarthritis
#3
Hiroshi Inui
Unicompartmental knee arthroplasty(UKA)has been performed for the treatment of isolated unicompartmental knee disease. Satisfactory results have been achieved when used in the medial compartment and strict inclusion criteria are followed. UKA is one of the minimally invasive surgeries and suitable for elderly severe knee osteoarthritis(OA)patients with a lot of complication. Anterior cruciate ligament(ACL)preserving and stabilizing total knee arthroplasty have been thought to be effective surgical options to improve the clinical results and satisfaction of the OA patients whose arthritis is not limited to a single compartment...
2018: Clinical Calcium
https://www.readbyqxmd.com/read/29843680/outcomes-and-early-revision-rate-after-medial-unicompartmental-knee-arthroplasty-prospective-results-from-a-non-designer-single-surgeon
#4
Jonathan R B Hutt, Avtar Sur, Hartej Sur, Aine Ringrose, Mark S Rickman
BACKGROUND: This prospective study evaluates outcomes and reoperation rates for unicompartmental knee arthroplasty (UKA) from a single non-designer surgeon using relatively extended criteria of degenerative changes of grade 2 or above in either or both non-operated compartments. METHODS: 187 consecutive medial mobile bearing UKA implants were included after history, clinical assessment and radiological evaluation. 91 patients had extended clinical outcomes. Post-operative assessment included functional scoring with the Oxford Knee Score (OKS) and radiographic review...
May 29, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29794771/function-scores-of-different-surgeries-in-the-treatment-of-knee-osteoarthritis-a-prisma-compliant-systematic-review-and-network-meta-analysis
#5
Cheng-Yao Liu, Chuan-Dong Li, Liang Wang, Shan Ren, Fu-Bin Yu, Jin-Guang Li, Jiang-Xiong Ma, Xing-Long Ma
BACKGROUND: Osteoarthritis (OA) is the third most common diagnosis made by general practitioners in older patients. The aim of this study was to compare the function scores of different surgeries in the treatment of knee osteoarthritis (KOA). METHODS: Cohort studies about different surgical treatments for KOA were included with a comprehensive search in PubMed, Cochrane Library, and Embase. The standard mean difference (SMD) value was evaluated and the surface under the cumulative ranking (SUCRA) curve was drawn with a combination of direct and indirect evidence...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29792279/can-intraoperative-measurement-of-bone-quality-help-in-decision-making-for-cementless-unicompartmental-knee-arthroplasty
#6
Johannes A Eckert, Sebastian Jaeger, Matthias C Klotz, Martin Schwarze, Rudi G Bitsch
BACKGROUND: In uncemented total hip arthroplasty (THA), low bone mineral density (BMD) is associated with aseptic loosening. BMD is usually assessed via dual-energy X-ray absorptiometry (DXA) or quantitative computed tomography, which takes time and exposes patients to radiation. Due to its low risk profile, intraoperative measurement of the trabecular stability might be a useful alternative to DXA. METHODS: In 24 human femora, BMD was analysed using DXA at the femoral necks and the knees...
May 20, 2018: Knee
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
#7
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/29783271/mid-term-clinical-outcome-and-reconstruction-of-posterior-tibial-slope-after-uka
#8
Alois Franz, Christoph Kolja Boese, Andrej Matthies, Jörg Leffler, Christian Ries
Unicompartmental knee arthroplasty (UKA) has gained growing popularity over the last decades. The posterior tibial slope (PTS) has been shown to play a significant role for knee biomechanics and is thought to be crucial for clinical function of the UKA. We evaluated the clinical outcome at mid-term follow-up after UKA. Furthermore, the reconstruction of the individual PTS was analyzed. A total of 91 consecutive patients undergoing medial UKA for osteoarthritis were included. Patients were contacted by telephone for a survival analysis at a minimum of 30 months after surgery...
May 21, 2018: Journal of Knee Surgery
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
#9
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/29776813/unicompartmental-knee-arthroplasty-for-spontaneous-osteonecrosis-of-the-medial-tibial-plateau
#10
Tomoyuki Kamenaga, Takafumi Hiranaka, Yuichi Hida, Takaaki Fujishiro, Koji Okamoto
BACKGROUND: There have been very few reports on isolated medial tibial plateau osteonecrosis, and the condition has not been clearly described. Unicompartmental knee arthroplasty (UKA) may be an appropriate treatment method for this condition. The aims of this study were to report our experience of using mobile-bearing knee implants for osteonecrosis of the medial tibial plateau and to discuss the etiology and treatment of this type of osteonecrosis. METHODS: This study included six consecutive patients with isolated medial tibial plateau osteonecrosis treated with an Oxford mobile-bearing knee implant...
May 16, 2018: Knee
https://www.readbyqxmd.com/read/29753264/perineural-dexamethasone-successfully-prolongs-adductor-canal-block-when-assessed-by-objective-pinprick-sensory-testing-a-prospective-randomized-dose-dependent-placebo-controlled-equivalency-trial
#11
James D Turner, Daryl S Henshaw, Robert S Weller, J Douglas Jaffe, Christopher J Edwards, J Wells Reynolds, Gregory B Russell, Sean W Dobson
STUDY OBJECTIVE: To determine whether perineural dexamethasone prolongs peripheral nerve blockade (PNB) when measured objectively; and to determine if a 1 mg and 4 mg dose provide equivalent PNB prolongation compared to PNB without dexamethasone. SETTING: Multiple studies have reported that perineural dexamethasone added to local anesthetics (LA) can prolong PNB. However, these studies have relied on subjective end-points to quantify PNB duration. The optimal dose remains unknown...
May 8, 2018: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/29748141/short-term-functional-advantages-after-medial-unicompartmental-versus-total-knee-arthroplasty
#12
Bernd Friesenbichler, Julia F Item-Glatthorn, Vanessa Wellauer, Fabian von Knoch, Nicola C Casartelli, Nicola A Maffiuletti
BACKGROUND: There are many uncertainties about the advantages and disadvantages of using unicompartmental (UKA) versus total knee arthroplasty (TKA) to treat patients with knee osteoarthritis. It is important to have sufficient early postoperative quadriceps strength for long-term, self-reported and gait-related outcomes after knee arthroplasty, but very limited comparative data exist regarding UKA and TKA patients. METHODS: This study assessed isometric quadriceps strength, spatio-temporal gait parameters (walking speed, step length, single-limb support phase) and self-reported outcomes (pain, function, stiffness) in 18 TKA and 18 UKA patients six months after surgery, as well as in 18 healthy controls...
May 7, 2018: Knee
https://www.readbyqxmd.com/read/29731320/the-largest-survivorship-and-clinical-outcomes-study-of-the-fixed-bearing-stryker-triathlon-partial-knee-replacement-a-multi-surgeon-single-centre-cohort-study-with-a-minimum-of-two-years-of-follow-up
#13
S W F Middleton, P J Schranz, V I Mandalia, A D Toms
BACKGROUND: The surgical management of isolated medial compartment degenerative disease of the knee causes debate. Unicompartmental arthroplasty options include fixed and mobile bearing implant designs with fixed bearing becoming increasingly popular. We present the largest cohort of a fixed bearing single radius design, Stryker Triathlon Partial Knee Replacement (PKR). METHODS: We prospectively collected demographic data and patient reported outcome measures (PROMs) on our cohort of PKR implants since its adoption in our unit, 2009 until March 2015...
May 3, 2018: Knee
https://www.readbyqxmd.com/read/29729936/single-stage-bilateral-medial-oxford-unicompartmental-knee-arthroplasty-a-case-control-study-of-perioperative-blood-loss-complications-and-functional-results
#14
Arnaud Clavé, Emeline Gauthier, Navraj S Nagra, François Fazilleau, A Anthony Le Sant, Frédéric Dubrana
BACKGROUND: The benefits and risks of a single-stage medial UKA remains a subject of debate because of the theoretically higher risk of complications and specifically blood loss. The aim of this study was to evaluate the perioperative blood loss, risks and the functional results of single-stage bilateral medial Oxford Unicompartmental Knee Arthroplasty (OUKA) compared to a standard unilateral medial OUKA procedure (control group). HYPOTHESIS: the blood loss observed during bilateral single-stage medial Oxford UKA is not different from that of the control group...
May 3, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29728833/ftfa-change-under-valgus-stress-force-radiography-is-useful-for-evaluating-the-correctability-of-intra-articular-varus-deformity-in-uka
#15
Qidong Zhang, Juan Yue, Weiguo Wang, Yan Chen, Qichao Zhao, Wanshou Guo
OBJECTIVE: The aim of this observational study was to investigate the postoperative alignment change with Oxford unicompartmental knee arthroplasties (UKA), and clarify whether femoro-tibial facet angle (FTFA) is useful for evaluating alignment correctability with UKA. METHODS: This study evaluated 79 knees consecutive minimally invasive Oxford phase 3 UKAs performed between 2013 and 2014. Full-length weight-bearing radiographs of the lower limbs were obtained pre- and postoperatively to assess varus angle...
May 4, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29721464/unicompartmental-knee-replacement-in-patients-aged-70-years-and-older
#16
Alberto Ventura, Claudio Legnani, Enrico Borgo
Introduction: The management of isolated unicompartmental osteoarthritis in the patient aged 70 years and older is an issue of debate. The purpose of the present study was to retrospectively evaluate the outcomes of patients aged over 70 years who underwent unicompartmental knee replacement (UKR) for the treatment of isolated unicompartmental osteoarthritis. The hypothesis was that this represents a safe and viable procedure leading to improved functional outcome in elderly patients affected by isolated unicompartmental osteoarthritis...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29713783/a-high-rate-of-tibial-plateau-fractures-after-early-experience-with-patient-specific-instrumentation-for-unicompartmental-knee-arthroplasties
#17
A M Leenders, M G M Schotanus, R J P Wind, R A P Borghans, N P Kort
PURPOSE: Patient-specific instrumentation (PSI) for unicompartmental knee arthroplasty (UKA) has been available for a few years. However, limited literature is available on this subject. Hence, the aim of this cohort study is to evaluate the 2 years' results of our first experiences with the use of PSI in UKA. It is hypothesised that there is no advantage in rate of adverse events and in radiological and functional outcomes in comparison to literature on the conventional method. METHODS: This cohort included 129 knees of 122 patients, operated by one surgeon...
April 30, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29709523/knee-arthroplasty-patients-predicted-versus-actual-recovery-what-are-their-expectations-about-time-of-recovery-following-surgery-and-how-long-before-they-can-do-the-tasks-they-want-to-do
#18
Karen L Barker, Erin Hannink, Sam Pemberton, Cathy Jenkins
OBJECTIVE: (1) To determine evidence-based guidance for the length of time to return to specific valued functional and leisure activities following knee arthroplasty (KA). (2) To determine what patients feel are the most important functional or leisure activities to recover after KA. (3) To collect information about patients' expectations and compare them to the actual time it takes to return. DESIGN: Prospective longitudinal cohort observational survey SETTING: Specialist orthopaedic hospital PARTICIPANTS: 99 patients with osteoarthritis or rheumatoid arthritis (mean= 69...
April 27, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29706598/cost-effectiveness-of-unicompartmental-compared-with-total-knee-replacement-a-population-based-study-using-data-from-the-national-joint-registry-for-england-and-wales
#19
Edward Burn, Alexander D Liddle, Thomas W Hamilton, Andrew Judge, Hemant G Pandit, David W Murray, Rafael Pinedo-Villanueva
OBJECTIVES: To assess the value for money of unicompartmental knee replacement (UKR) compared with total knee replacement (TKR). DESIGN: A lifetime Markov model provided the framework for the analysis. SETTING: Data from the National Joint Registry (NJR) for England and Wales primarily informed the analysis. PARTICIPANTS: Propensity score matched patients in the NJR who received either a UKR or TKR. INTERVENTIONS: UKR is a less invasive alternative to TKR, where only the compartment affected by osteoarthritis is replaced...
April 29, 2018: BMJ Open
https://www.readbyqxmd.com/read/29705680/medial-mobile-bearing-unicompartmental-knee-arthroplasty-in-young-patients-aged-less-than-or-equal-to-50-years
#20
Nicholas J Greco, Adolph V Lombardi, Andrew J Price, Michael E Berend, Keith R Berend
BACKGROUND: Contemporary research has shown medial mobile-bearing unicompartmental knee arthroplasty to be an effective treatment in patients younger than 60 years; however, only one other study has specifically investigated unicompartmental arthroplasty outcomes in patients 50 years or younger. The purpose of this study was to determine the clinical outcomes and survivorship of medial mobile-bearing unicompartmental arthroplasty in this younger patient population. METHODS: A retrospective review of patients undergoing primary unicompartmental knee arthroplasty using the Oxford partial knee from 2003 to 2014 in a single practice database was performed...
April 9, 2018: Journal of Arthroplasty
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