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https://www.readbyqxmd.com/read/28795210/-arthrodesis-of-the-trapeziometacarpal-joint
#1
REVIEW
T Pillukat, M Mühldorfer-Fodor, R Fuhrmann, J Windolf, J van Schoonhoven
OBJECTIVE: Bony fusion of the trapeziometacarpal joint. INDICATIONS: High demands concerning stability and strength of the thumb in primary or secondary osteoarthritis (e.g., posttraumatic osteoarthritis following injuries to the carpometacarpal joint of the thumb); instability in the absence of osteoarthritis due to malformations, ligamentous laxicity, and joint hypermobility; malformations; improvement of hand function in neurological disorders; salvage procedure after carpometacarpal arthroplasty provided bone stock is sufficient...
August 9, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28793978/patellofemoral-arthroplasty-conversion-to-total-knee-arthroplasty-retrieval-analysis-and-clinical-correlation
#2
Alexander B Christ, Elexis Baral, Chelsea Koch, Beth E Shubin Stein, Alejandro Gonzalez Della Valle, Sabrina M Strickland
BACKGROUND: Patellofemoral arthroplasty (PFA) can be a successful, bone-sparing treatment for isolated patellofemoral arthritis. However, progression of tibio-femoral arthritis or incorrect indications may predispose patients to early conversion to total knee arthroplasty (TKA). The purpose of this study was to review the clinical cases and perform retrieval analysis of PFA conversions to TKA at our institution. METHODS: Twenty one patellofemoral arthroplasties in 18 patients that were converted to TKA were identified through our implant retrieval registry...
August 6, 2017: Knee
https://www.readbyqxmd.com/read/28790467/current-concepts-in-acetabular-positioning-in-total-hip-arthroplasty
#3
Deepu Bhaskar, Asim Rajpura, Tim Board
Being one of the most successful surgeries in the history of medicine, the indications for total hip arthroplasty have widened and are increasingly being offered to younger and fitter patients. This has also led to high expectations for longevity and outcomes. Acetabular cup position has a significant impact on the results of hip arthroplasty as it affects dislocation, abductor muscle strength, gait, limb lengths, impingement, noise generation, range of motion (ROM), wear, loosening, and cup failure. The variables in cup position are depth, height, and angular position (anteversion and inclination)...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28790000/emergency-metacarpophalangeal-arthroplastywith-bone-grafting-for-traumatic-joint-destruction
#4
G Pomares, V Calafat, D Montoya-Faivre, F Dap, G Dautel
Emergency arthroplasty of the metacarpophalangeal joint (MCPJ) remains a valuable treatment option in patients with MCPJ destruction but may raise challenges in the event of substantial metacarpal and/or phalangeal bone defects. We report three cases ofMCPJdestruction with bone defects at the proximal first phalanx treated with emergency silicone implant arthroplasty combined with bone grafting.
August 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28768787/factors-affecting-the-rate-of-surgical-site-infection-in-patients-after-hemiarthroplasty-of-the-hip-following-a-fracture-of-the-neck-of-the-femur
#5
L de Jong, T M A L Klem, T M Kuijper, G R Roukema
AIMS: Surgical site infection can be a devastating complication of hemiarthroplasty of the hip, when performed in elderly patients with a displaced fracture of the femoral neck. It results in a prolonged stay in hospital, a poor outcome and increased costs. Many studies have identified risk and prognostic factors for deep infection. However, most have combined the rates of infection following total hip arthroplasty and internal fixation as well as hemiarthroplasty, despite the fact that they are different entities...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768785/the-effect-of-intravenous-tranexamic-acid-on-blood-loss-and-early-post-operative-pain-in-total-shoulder-arthroplasty
#6
L Pauzenberger, M A Domej, P R Heuberer, M Hexel, A Grieb, B Laky, J Blasl, W Anderl
AIMS: The purpose of the present study was to evaluate the impact of intravenous tranexamic acid on the reduction of blood loss, transfusion rate, and early post-operative clinical outcome in total shoulder arthroplasty. PATIENTS AND METHODS: A randomised, placebo-controlled trial which included 54 patients undergoing unilateral primary stemless anatomical or stemmed reverse total shoulder arthroplasty was undertaken. Patients received either 100 ml saline (placebo, n = 27), or 100 ml saline together with 1000 mg of tranexamic acid (TXA, n = 27) intravenously prior to skin incision and during wound closure...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768783/the-effect-of-operating-lights-on-laminar-flow-an-experimental-study-using-neutrally-buoyant-helium-bubbles
#7
R Refaie, P Rushton, P McGovern, D Thompson, I Serrano-Pedraza, K S Rankin, M Reed
AIMS: The interaction between surgical lighting and laminar airflow is poorly understood. We undertook an experiment to identify any effect contemporary surgical lights have on laminar flow and recommend practical strategies to limit any negative effects. MATERIALS AND METHODS: Neutrally buoyant bubbles were introduced into the surgical field of a simulated setup for a routine total knee arthroplasty in a laminar flow theatre. Patterns of airflow were observed and the number of bubbles remaining above the surgical field over time identified...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768781/usefulness-of-an-accelerometer-based-portable-navigation-system-in-total-knee-arthroplasty
#8
T Ikawa, S Takemura, M Kim, K Takaoka, Y Minoda, Y Kadoya
AIMS: The aim of this study was to evaluate the effects of using a portable, accelerometer-based surgical navigation system (KneeAlign2) in total knee arthroplasty (TKA) on the alignment of the femoral component, and blood loss. PATIENTS AND METHODS: A total of 241 consecutive patients with primary osteoarthritis of the knee were enrolled in this prospective, randomised controlled study. There were 207 women and 34 men. The mean age of the patients was 74.0 years (57 to 89)...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768780/activity-levels-and-return-to-work-following-total-knee-arthroplasty-in-patients-under-65-years-of-age
#9
C E H Scott, G S Turnbull, D MacDonald, S J Breusch
AIMS: Little is known about employment following total knee arthroplasty (TKA). This study aims to identify factors which predict return to work following TKA in patients of working age in the United Kingdom. PATIENTS & METHODS: We prospectively assessed 289 patients (289 TKAs) aged ≤ 65 years who underwent TKA between 2010 and 2013. There were 148 women. The following were recorded pre-operatively: age, gender, body mass index, social deprivation, comorbidities, indication for surgery, work status and nature of employment, activity level as assessed by the University of California, Los Angeles (UCLA) activity score and Oxford Knee Score (OKS)...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768779/cost-effectiveness-of-patellofemoral-versus-total-knee-arthroplasty-in-younger-patients
#10
H Chawla, B U Nwachukwu, J P van der List, A A Eggman, A D Pearle, H M Ghomrawi
AIMS: Patellofemoral arthroplasty (PFA) has experienced significant improvements in implant survivorship with second generation designs. This has renewed interest in PFA as an alternative to total knee arthroplasty (TKA) for younger active patients with isolated patellofemoral osteoarthritis (PF OA). We analysed the cost-effectiveness of PFA versus TKA for the management of isolated PF OA in the United States-based population. PATIENTS AND METHODS: We used a Markov transition state model to compare cost-effectiveness between PFA and TKA...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768778/which-factors-influence-the-rate-of-failure-following-metal-on-metal-hip-arthroplasty-revision-surgery-performed-for-adverse-reactions-to-metal-debris-an-analysis-from-the-national-joint-registry-for-england-and-wales
#11
G S Matharu, A Judge, H G Pandit, D W Murray
AIMS: To determine the outcomes following revision surgery of metal-on-metal hip arthroplasties (MoMHA) performed for adverse reactions to metal debris (ARMD), and to identify factors predictive of re-revision. PATIENTS AND METHODS: We performed a retrospective observational study using National Joint Registry (NJR) data on 2535 MoMHAs undergoing revision surgery for ARMD between 2008 and 2014. The outcomes studied following revision were intra-operative complications, mortality and re-revision surgery...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768777/ceramic-on-ceramic-bearing-fractures-in-total-hip-arthroplasty-an-analysis-of-data-from-the-national-joint-registry
#12
D P Howard, P D H Wall, M A Fernandez, H Parsons, P W Howard
AIMS: Ceramic-on-ceramic (CoC) bearings in total hip arthroplasty (THA) are commonly used, but concerns exist regarding ceramic fracture. This study aims to report the risk of revision for fracture of modern CoC bearings and identify factors that might influence this risk, using data from the National Joint Registry (NJR) for England, Wales, Northern Ireland and the Isle of Man. PATIENTS AND METHODS: We analysed data on 223 362 bearings from 111 681 primary CoC THAs and 182 linked revisions for bearing fracture recorded in the NJR...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768776/the-validity-and-reproducibility-of-cross-table-radiographs-compared-with-ct-scans-for-the-measurement-of-anteversion-of-the-acetabular-component-after-total-hip-arthroplasty
#13
A Pankaj, A Mittal, A Chawla
AIMS: The aim of this study was to assess the reproducibility and validity of cross table radiographs for measuring the anteversion of the acetabular component after total hip arthroplasty (THA) and to compare it with measurements using CT scans. PATIENTS AND METHODS: A total of 29 patients who underwent THA between June 2010 and January 2016 were included. There were 17 men and 12 women. Their mean age was 43 years (26 to 65). Seven patients underwent a bilateral procedure...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28768774/the-use-of-highly-crosslinked-polyethylene-in-total-knee-arthroplasty
#14
REVIEW
T S Brown, D W Van Citters, D J Berry, M P Abdel
Advances in polyethylene (PE) in total hip arthroplasty have led to interest and increased use of highly crosslinked PE (HXLPE) in total knee arthroplasty (TKA). Biomechanical data suggest improved wear characteristics for HXLPE inserts over conventional PE in TKA. Short-term results from registry data and few clinical trials are promising. Our aim is to present a review of the history of HXLPEs, the use of HXLPE inserts in TKA, concerns regarding potential mechanical complications, and a thorough review of the available biomechanical and clinical data...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28766067/cementless-total-hip-arthroplasty-in-the-treatment-after-acetabular-fractures
#15
Wael Salama, Paolo Ditto, Shazly Mousa, Abdelrahman Khalefa, Ahmed Sleem, Laura Ravera, Alessandro Masse
INTRODUCTION: The outcomes of total hip arthroplasty (THA) for the treatment of posttraumatic arthritis after acetabular fractures were inferior to those after primary non-traumatic THA. METHODS: This study was performed in academic level I trauma center. From January 2011 to December 2014, a consecutive series of 21 patients (9 females), with average age of 56.7 years (range 29-75 years) who had posttraumatic hip joint arthritis after acetabular fractures, were included in our study...
August 1, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28762999/immunological-responses-to-total-hip-arthroplasty
#16
REVIEW
Kenny Man, Lin-Hua Jiang, Richard Foster, Xuebin B Yang
The use of total hip arthroplasties (THA) has been continuously rising to meet the demands of the increasingly ageing population. To date, this procedure has been highly successful in relieving pain and restoring the functionality of patients' joints, and has significantly improved their quality of life. However, these implants are expected to eventually fail after 15-25 years in situ due to slow progressive inflammatory responses at the bone-implant interface. Such inflammatory responses are primarily mediated by immune cells such as macrophages, triggered by implant wear particles...
August 1, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28757775/an-anatomical-study-of-the-proximal-aspect-of-the-medial-femoral-condyle-to-define-the-proximal-distal-condylar-length
#17
Chia-Ming Chang, Wen-Tien Wu, Kuan-Lin Liu, Kuang-Ting Yeh, Cheng-Huan Peng, Ing-Ho Chen
OBJECTIVE: Despite its possible role in knee arthroplasty, the proximal-distal condylar length (PDCL) of the femur has never been reported in the literature. We conducted an anatomic study of the proximal aspect of the medial femoral condyle to propose a method for measuring the PDCL. MATERIALS AND METHODS: Inspection of dried bone specimens was carried out to assure the most proximal condylar margin (MPCM) as the eligible starting point to measure the PDCL. Simulation surgery was performed on seven pairs of cadaveric knees to verify the clinical application of measuring the PDCL after locating the MPCM...
April 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/28753275/osteoconductive-amine-functionalized-graphene-poly-methylmethacrylate-bone-cement-composite-with-controlled-exothermic-polymerization
#18
Rakesh Sharma, Govinda Kapusetti, Sayali Y Bhong, Partha Roy, Santosh Kumar Singh, Shikha Singh, Biswajit Ray, Pralay Maiti, Nira Misra
Bone cement finds its extensive usage in joint arthroplasty since last 50 years, still, the development of bone cement with essential properties like high fatigue resistance, lower exothermic temperature, and bioactivity has been an unsolved problem. In our present work, we have addressed all the mentioned shortcomings of bone cement by reinforcing it with graphene (GR), graphene oxide (GO) and surface modified amino graphene (AG) fillers. These nanocomposites have shown hypsochromic shifts suggesting strong interactions between the filler material and the polymer matrix...
July 28, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28750725/hydroxyapatite-collagen-scaffold-with-autologous-bone-marrow-aspirate-for-mandibular-condylar-reconstruction
#19
Debraj Howlader, U Vignesh, Dichen P Bhutia, Rahul Pandey, Sumit Kumar, Tulika Chandra, Divya Mehrotra
PURPOSE: This study was designed with the aim to assess the efficiency of hydroxyapatite/collagen (HA/Col) bio-scaffold with bone marrow aspirate (BMA) to reconstruct mandibular condyle in patients with temporomandibular joint (TMJ) ankylosis. MATERIALS AND METHODS: Seven pediatric patients with TMJ ankylosis, who visited our outpatient clinic and whose parents opted for this procedure, were included in this study. After a history and clinical examination for TMJ movements, computed tomography (CT) scans were obtained...
July 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28747338/copy-number-loss-in-the-region-of-the-aspn-gene-in-patients-with-acetabular-dysplasia-aspn-cnv-in-acetabular-dysplasia
#20
T Sekimoto, M Ishii, M Emi, S Kurogi, T Funamoto, Y Yonezawa, T Tajima, T Sakamoto, H Hamada, E Chosa
OBJECTIVES: We have previously investigated an association between the genome copy number variation (CNV) and acetabular dysplasia (AD). Hip osteoarthritis is associated with a genetic polymorphism in the aspartic acid repeat in the N-terminal region of the asporin (ASPN) gene; therefore, the present study aimed to investigate whether the CNV of ASPN is involved in the pathogenesis of AD. METHODS: Acetabular coverage of all subjects was evaluated using radiological findings (Sharp angle, centre-edge (CE) angle, acetabular roof obliquity (ARO) angle, and minimum joint space width)...
July 2017: Bone & Joint Research
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