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Unicompartmental knee arthroplasty

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https://www.readbyqxmd.com/read/28606459/comparison-of-low-moderate-and-high-molecular-weight-hyaluronic-acid-injections-in-delaying-time-to-knee-surgery
#1
Anand R Shewale, Charles L Barnes, Lori A Fischbach, Songthip T Ounpraseuth, Jacob T Painter, Bradley C Martin
BACKGROUND: We compared the effectiveness of low-molecular-weight (MW) hyaluronic acid (HA) injections (LMWHA), moderate-MW HA injections (MMWHA), and high-MW HA injections (HMWHA) for prevention or delay of knee surgery in patients with knee osteoarthritis. METHODS: An observational cohort study using LifeLink Plus claims (2006-2015) was used. The primary outcome measure of the study included all surgical interventions of the knee. The secondary outcome measures were the following: (1) unicompartmental knee arthroplasty or total knee arthroplasty and (2) total knee arthroplasty only...
May 2, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28602533/outpatient-and-inpatient-unicompartmental-knee-arthroplasty-procedures-have-similar-short-term-complication-profiles
#2
Patawut Bovonratwet, Nathaniel T Ondeck, Vineet Tyagi, Stephen J Nelson, Lee E Rubin, Jonathan N Grauer
BACKGROUND: Advances in surgical techniques and anesthesia have made performing unicompartmental knee arthroplasty (UKA) in the outpatient setting a possibility. The touted benefits of outpatient surgery include higher patient satisfaction and reduced costs. However, detailed information on the perioperative outcomes of outpatient compared with inpatient UKA in a large, national patient population in the United States has never been reported. The present study compares perioperative complications between outpatient and inpatient UKAs in the National Surgical Quality Improvement Program database...
May 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28594499/medial-unicompartmental-knee-arthroplasty
#3
Andrew Barrister Richardson, Michael J Morris
Unicompartmental knee arthroplasty (UKA) has substantial benefits, including lower perioperative morbidity and earlier recovery, compared with total knee arthroplasty. The traditionally strict indications for UKA have been challenged by studies that expanded the indications based on a diagnosis of anteromedial osteoarthritis of the knee and demonstrated successful outcomes. The Nuffield criteria no longer prohibit patients from UKA based on age, obesity, anterior knee pain, or involvement of the patellofemoral joint...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28592075/-influence-of-tibial-component-slope-on-short-term-clinical-outcome-for-oxford-unicompartmental-knee-arthroplasty
#4
L Y Ma, W S Guo, Q D Zhang
Objective: To investigate the effects of tibial component slope change after microplasty (MP) Oxford unicompartmental knee arthroplasty (UKA) on short-term clinical outcome. Methods: A total of 116 patients(128 UKAs)underwent UKA in Department of Orthopaedic Surgery of China-Japan Friendship Hospital between January 2014 and December 2015 were retrospectively reviewed. Totally 100 patients (108 UKAs) were finally included in the study. There were 31 males and 69 females, aging from 47 to 90 years (mean 67.2 years)...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28592073/-influence-of-patellofemoral-joint-degeneration-on-outcome-of-medial-unicompartmental-knee-arthroplasty
#5
B Y Xu, B C Ji, W T Guo, W B Mu, L Cao
Objective: To evaluate the influence of patellofemoral joint degeneration and pre-operative pain location on the outcome of medial Oxford unicompartmental knee arthroplasty (UKA). Methods: A total of 58 patients (58 knees) with medial Oxford UKA had been performed for medial osteoarthritis from March 2013 to July 2014 in Department of Orthopaedic Surgery at First Teaching Hospital of Xinjiang Medical University were retrospective reviewed. There were 24 males and 34 females, the age from 43 to 87 years with the mean age was 68...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28579132/optimization-of-sagittal-and-coronal-planes-with-robotic-assisted-unicompartmental-knee-arthroplasty
#6
Michael A Gaudiani, Benedict U Nwachukwu, Jayesh V Baviskar, Mrinal Sharma, Anil S Ranawat
BACKGROUND: One of the anatomic goals of total knee arthroplasty (TKA) is optimizing in the coronal and sagittal plane. Accurate alignments of both planes have been correlated to functional outcome and range of motion. There is a paucity of evidence on the accuracy of unicompartmental knee arthroplasty (UKA) in balancing biplanar knee alignment - specifically sagittal plane alignment. Because robotic assisted UKA has an advantage of more accurately manipulating sagittal plane for optimal alignment and kinematics based on pre-operative and intraoperative CT planning we assessed the accuracy...
June 1, 2017: Knee
https://www.readbyqxmd.com/read/28578846/the-congruence-and-joint-space-width-of-the-lateral-compartment-can-be-restored-after-medial-unicompartmental-knee-arthroplasty
#7
Fei Cao, Haibo Si, Yi Zeng, Canfeng Li, Yuangang Wu, Bin Shen
BACKGROUND: Progressive degenerative changes in the lateral compartment of the knee after medial unicompartmental arthroplasty (UKA) remain a main cause of revision surgery. The purpose of this study is to evaluate whether tibiofemoral congruence and joint space width (JSW) of the lateral compartment are improved after medial UKA using traditional instruments. METHODS: We retrospectively analyzed the preoperative and postoperative lateral tibiofemoral congruence using validated software that evaluates the geometric relationship between surfaces and calculates a congruence index (CI)...
April 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28578839/the-combination-of-preoperative-bone-marrow-lesions-and-partial-thickness-cartilage-loss-did-not-result-in-inferior-outcomes-after-medial-unicompartmental-knee-arthroplasty
#8
Keith R Berend, Adolph V Lombardi, Cale A Jacobs
BACKGROUND: The purpose of this study is to compare patient-reported outcomes and revision rates between medial unicompartmental knee arthroplasty (UKA) patients based on the presence of medial bone marrow lesions (BMLs) and/or partial- vs full-thickness cartilage loss. METHODS: BMLs were graded on preoperative magnetic resonance imaging (MRI) findings from 174 UKAs performed between 2009 and 2013 using the MRI Osteoarthritis Knee Score criteria by a single evaluator blinded to the patient's outcome...
May 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28577508/change-in-gait-after-high-tibial-osteotomy-a-systematic-review-and-meta-analysis
#9
Seung Hoon Lee, O-Sung Lee, Seow Hui Teo, Yong Seuk Lee
We conducted a meta-analysis to analyze how high tibial osteotomy (HTO) changes gait and focused on the following questions: (1) How does HTO change basic gait variables? (2) How does HTO change the gait variables in the knee joint? Twelve articles were included in the final analysis. A total of 383 knees was evaluated. There were 237 open wedge (OW) and 143 closed wedge (CW) HTOs. There were 4 level II studies and 8 level III studies. All studies included gait analysis and compared pre- and postoperative values...
May 26, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28575058/timing-of-rehabilitation-on-length-of-stay-and-cost-in-patients-with-hip-or-knee-joint-arthroplasty-a-systematic-review-with-meta-analysis
#10
Michael Masaracchio, William J Hanney, Xinliang Liu, Morey Kolber, Kaitlin Kirker
OBJECTIVE: To investigate the role of early initiation of rehabilitation on length of stay (LOS) and cost following total hip arthroplasty, total knee arthroplasty, or unicompartmental knee arthroplasty. DATA SOURCES: Electronic databases PubMed, CINAHL, Pedro, Embase, AMED, and the Cochrane Library were searched in July 2016. Five additional trials were identified through reference list scanning. STUDY SELECTION: Eligible studies were published in English language peer-reviewed journals; included participants that had undergone total hip arthroplasty, total knee arthroplasty, or unicompartmental knee arthroplasty reported clearly defined timing of rehabilitation onset for at least two groups; and reported at least one measure of LOS or cost...
2017: PloS One
https://www.readbyqxmd.com/read/28571920/mobile-bearing-medial-unicompartmental-knee-arthroplasty-in-patients-whose-lifestyles-involve-high-degrees-of-knee-flexion-a-10-14year-follow-up-study
#11
Won Sik Choy, Kwang Won Lee, Ha Yong Kim, Kap Jung Kim, Young Sub Chun, Dae Suk Yang
BACKGROUND: Because Asian populations have different lifestyles, such as squatting and sitting on the floor, from those of Western populations, it is possible that the clinical results and survival rate of unicompartmental knee arthroplasty (UKA) for Asian patients may be different. This study described outcomes of mobile bearing medial UKA for Korean patients. METHODS: A total of the 164 knees treated with mobile bearing UKAs in 147 patients (14 males and 133 females) were reviewed...
May 29, 2017: Knee
https://www.readbyqxmd.com/read/28566398/discharge-on-the-day-of-surgery-following-unicompartmental-knee-arthroplasty-within-the-united-kingdom-nhs
#12
B Bradley, S Middleton, N Davis, M Williams, M Stocker, M Hockings, D L Isaac
AIMS: Unicompartmental knee arthroplasty (UKA) has been successfully performed in the United States healthcare system on outpatients. Despite differences in healthcare structure and financial environment, we hypothesised that it would be feasible to replicate this success and perform UKA with safe day of surgery discharge within the NHS, in the United Kingdom. This has not been reported in any other United Kingdom centres. PATIENTS AND METHODS: We report our experience of implementing a pathway to allow safe day of surgery discharge following UKA...
June 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28559197/anteroposterior-rotational-references-of-the-tibia-for-medial-unicompartmental-knee-arthroplasty-in-japanese-patients
#13
Ichiro Tsukamoto, Masao Akagi, Shigeshi Mori, Shinji Inoue, Shigeki Asada, Fuminori Matsumura
BACKGROUND: In unicompartmental knee arthroplasty (UKA), there is no consensus regarding how to determine the anteroposterior (AP) reference of the tibia. A number of surgeons in Japan perform the sagittal saw cut using the medial intercondylar ridge (MIR) of the tibia according to surgical manuals. However, there is no theoretical basis for this practice. METHODS: Preoperative computed tomography data from 32 lower limbs of 31 Japanese patients who received UKA were used...
May 4, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28545178/hylan-gf-20-viscosupplementation-in-the-treatment-of-symptomatic-osteoarthritis-of-the-knee-clinical-effect-survivorship-at-5-years
#14
Tarek Boutefnouchet, Guru Puranik, Esther Holmes, Karl M Bell
Purpose: Controversies remain surrounding the choice of hyaluronic acid products and patient selection. A study was conducted to report the long-term survivorship of intra-articular injection effect of high molecular weight hyaluronic preparation hylan GF-20 (Synvisc-One) for patients with symptomatic knee osteoarthritis. Materials and Methods: A retrospective observational analysis of a single therapeutic series was carried out. The analysis was conducted to determine therapeutic effect survivorship taking arthroplasty and any other surgical interventions as endpoint results...
June 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28545177/mid-term-results-of-oxford-medial-unicompartmental-knee-arthroplasty-in-young-asian-patients-less-than-60-years-of-age-a-minimum-5-year-follow-up
#15
Yeong-Joon Kim, Bu-Hwan Kim, Seong-Ho Yoo, Suk-Woong Kang, Chang-Hun Kwack, Moo-Ho Song
Purpose: The purpose of this study was to evaluate the efficacy of unicompartmental knee arthroplasty (UKA) in young active Asian patients by analyzing clinical outcomes, complications and survival rates. Materials and Methods: Eighty-two knees were evaluated with a minimum follow-up of 5 years after Oxford phase 3 UKA in patients less than 60 years of age at the time of surgery. Their mean age was 54.7 years (range, 44 to 59 years). The mean follow-up period was 8...
June 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28534289/exposure-of-articular-chondrocytes-to-wear-particles-induces-phagocytosis-differential-inflammatory-gene-expression-and-reduced-proliferation
#16
Michael D Kurdziel, Meagan Salisbury, Lige Kaplan, Tristan Maerz, Kevin C Baker
The production of wear debris particulate remains a concern due to its association with implant failure through complex biologic interactions. In the setting of unicompartmental knee arthroplasty (UKA), damage and wear of the components may introduce debris particulate into the adjacent, otherwise, healthy compartment. The purpose of this study was to investigate the in vitro effect of polymeric and metallic wear debris particles on cell proliferation, extracellular matrix regulation, and phagocytosis index of normal human articular chondrocytes (nHACs)...
July 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28488164/up-to-twelve-year-follow-up-of-the-oxford-phase-three-unicompartmental-knee-replacement-in-china-seven-hundred-and-eight-knees-from-an-independent-centre
#17
Huaming Xue, Yihui Tu, Tong Ma, Tao Wen, Tao Yang, Minwei Cai
PURPOSE: There have been few large sample studies reporting the midterm outcome of Oxford phase 3 unicompartmental knee arthroplasty (UKA) in Asian patients. METHODS: The study included 708 consecutive medial Oxford UKAs between February 2005 and May 2014 in Chinese patients. All cases were performed for the recommended indications with a minimally-invasive surgical technique. The functional and radiological outcomes were subsequently examined. In particular, we divided patients into the spontaneous osteonecrosis of the knee (SONK) group and the osteoarthritis (OA) group...
May 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28455472/anterior-knee-pain-and-evidence-of-osteoarthritis-of-the-patellofemoral-joint-should-not-be-considered-contraindications-to-mobile-bearing-unicompartmental-knee-arthroplasty-a-15-year-follow-up
#18
T W Hamilton, H G Pandit, D G Maurer, S J Ostlere, C Jenkins, S J Mellon, C A F Dodd, D W Murray
AIMS: It is not clear whether anterior knee pain and osteoarthritis (OA) of the patellofemoral joint (PFJ) are contraindications to medial unicompartmental knee arthroplasty (UKA). Our aim was to investigate the long-term outcome of a consecutive series of patients, some of whom had anterior knee pain and PFJ OA managed with UKA. PATIENTS AND METHODS: We assessed the ten-year functional outcomes and 15-year implant survival of 805 knees (677 patients) following medial mobile-bearing UKA...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28455471/five-year-clinical-and-radiological-outcomes-in-257-consecutive-cementless-oxford-medial-unicompartmental-knee-arthroplasties
#19
J Blaney, H Harty, E Doran, S O'Brien, J Hill, I Dobie, D Beverland
AIMS: Our aim was to examine the clinical and radiographic outcomes in 257 consecutive Oxford unicompartmental knee arthroplasties (OUKAs) (238 patients), five years post-operatively. PATIENTS AND METHODS: A retrospective evaluation was undertaken of patients treated between April 2008 and October 2010 in a regional centre by two non-designing surgeons with no previous experience of UKAs. The Oxford Knee Scores (OKSs) were recorded and fluoroscopically aligned radiographs were assessed post-operatively at one and five years...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28454195/-unicompartmental-vs-total-knee-arthroplasty-for-medial-osteoarthritis
#20
Tilman Pfitzner, Carsten Perka, Philipp von Roth
Background In end-stage medial osteoarthritis, the surgeon can decide whether to use unicompartmental or total knee arthroplasty for operative treatment of the patient. Despite the available literature there is a lack of evidence to suggest if one procedure can be rated as being superior to the other. With increasing demand for knee arthroplasty, treatment with the highest expectation of success will be of particular interest. The purpose of this manuscript was to analyse and compare the available literature on unicompartmental vs...
April 28, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
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