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https://www.readbyqxmd.com/read/29232186/cemented-or-cementless-total-knee-arthroplasty-comparative-results-of-200-cases-at-a-minimum-follow-up-of-11-years
#1
Jean-Louis Prudhon, Régis Verdier
INTRODUCTION: Since 1996 we have been using cementless fixation with hydroxyapatite (HA) coating. The purpose of this paper is to compare survivorship of a series of 100 cemented Total Knee Arthroplasty (TKA) to a similar series of 100 cementless with a follow up of 11-16 years. Material methods: Both TKA are mobile bearing total knee postero-stabilized. They can be used with cement or without cement. Among 1030 New Wave TKATM implanted from 2002 to 2015 we have identified 100 cemented TKAs and 100 cementless TKAs...
2017: SICOT-J
https://www.readbyqxmd.com/read/29221842/comparison-of-an-uncemented-tapered-stem-design-in-cobalt-chrome-vs-titanium-at-15-year-follow-up
#2
Ricardo Fernández-Fernández, Jesus M Martínez-Miranda, Enrique Gil-Garay
BACKGROUND: Cobalt-chromium (Co-Cr) and titanium (Ti) have been the most popular materials employed for cementless implants. The purpose of this study was to compare clinical and radiological results of a single stem design with both alloys at long-term follow-up. METHODS: Two hundred consecutive uncemented stems implanted in 171 patients (100 Co-Cr and 100 Ti implants) between 1999 and 2002 were studied. Mean age of the patients was 60.9 years (range, 20-84). Clinical results were evaluated using the Harris hip score...
November 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29221839/cementless-one-stage-revision-in-chronic-periprosthetic-hip-joint-infection-ninety-one-percent-infection-free-survival-in-56-patients-at-minimum-2-year-follow-up
#3
Jeppe Lange, Anders Troelsen, Søren Solgaard, Kristian S Otte, Niels K Jensen, Kjeld Søballe
BACKGROUND: Cementless 1-stage revision in chronic periprosthetic hip joint infections is limited evaluated. The purpose of this study was to evaluate a specific treatment protocol in this patient group. METHODS: The study was performed as a multicenter, proof-of-concept, observational study with prospective data collection. Patients were treated with a cementless 1-stage revision according to the CORIHA protocol between 2009 and 2014. Fifty-six patients, McPherson type III-A/B-1/2, were enrolled with a mean follow-up time from the CORIHA procedure of 4 years (minimum of 2 years)...
November 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29218502/lower-preoperative-hounsfield-unit-values-are-associated-with-intra-operative-fractures-in-cementless-bipolar-hemiarthroplasty
#4
Seung-Ju Kim, Hyun-Soo Park, Dong-Woo Lee, Jong Hun Kim
The use of Hounsfield units (HU) from CT scanning to assess regional BMD has been described. Therefore, we evaluated whether HU could be used to identify osteoporosis of the proximal part of the femur. The results showed that HU assessment is associated with the presence of intra-operative fracture during arthroplasty. INTRODUCTION: The aim with this study was to determine the association of preoperative Hounsfield unit (HU) in hip computed tomography (CT) with intra-operative osteoporotic fracture during cementless hemiarthroplasty...
December 7, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/29204495/radiolucencies-surrounding-acetabular-components-with-three-dimensional-coatings-artifact-or-real
#5
Ahmad Faizan, Philip Chuang, Carlos Aponte, Vincent Moretti, Peter F Sharkey
Background: Several 2-dimensional and 3-dimensional surfaces are available for cementless acetabular fixation. Plain radiographs are used to assess osseointegration; however, the radiographs are limited by their inability to capture the bone fixation process occurring over the 3-dimensional cup surface. In this cadaveric study, we compared the bone apposition between 2-dimensional and 3-dimensional cups. Methods: Both types of cups were implanted in 6 cadavers and pelvic radiographs obtained...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29204483/bead-debonding-from-a-modern-cementless-total-hip-femoral-component-with-concomitant-taper-corrosion
#6
Adam I Edelstein, Duy L Phan, Scott M Sporer
We report a case of bead shedding from a cylindrical extensively porous-coated cementless femoral component with concomitant taper corrosion at the modular head-neck junction of a metal-on-polyethylene total hip prosthesis. The patient presented with chronic thigh pain 4 years after primary total hip arthroplasty, and radiographs revealed significant osteolysis and metallic debris around the femoral stem. Intraoperatively, the patient had a grossly loose femoral component with debonding of sintered beads from the femoral stem, as well as evidence of taper corrosion...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29204482/corrosion-and-adverse-local-tissue-reaction-after-total-hip-arthroplasty-with-a-modular-titanium-alloy-femoral-neck
#7
Colin D Canham, Pavel I Muradov, Jordan B Simpson, Stephen J Incavo
This report describes a case of mechanically assisted crevice corrosion and secondary adverse local tissue reaction in a patient following a total hip arthroplasty, utilizing a modular neck (bi-modular) femoral component. Radiographic evaluation demonstrated a well-positioned, stable, cementless arthroplasty. Upon further evaluation, the patient had elevated serum cobalt and chromium levels, and magnetic resonance imaging demonstrated a periprosthetic pseudotumor. Corrosion of both the neck-stem and head-neck junctions was suspected...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29198812/the-effect-of-a-radial-neck-notch-on-press-fit-stem-stability-a-biomechanical-study-on-7-cadavers
#8
Dave R Shukla, Dipit C Sahu, James S Fitzsimmons, Kai-Nan An, Shawn W O'Driscoll
BACKGROUND: Minimal micromotion is necessary for osteointegration of cementless radial head prostheses. When radial head fractures extend longitudinally, where the neck cut for prosthetic replacement should be made is uncertain. We hypothesized that complete resection of the notched portion of a radial neck confers no advantage in initial stability compared with not resecting the defect and inserting the implant into a notched radial neck. MATERIALS AND METHODS: The radii of 7 cadavers underwent radial head resection and implantation with a 25-mm-long press-fit radial head stem...
November 29, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29195849/cementless-posteriorly-stabilized-total-knee-arthroplasty-seven-year-minimum-follow-up-report
#9
Steven F Harwin, Jay M Levin, Anton Khlopas, Prem N Ramkumar, Nicolas S Piuzzi, Martin Roche, Michael A Mont
BACKGROUND: The purpose of this study is to evaluate (1) implant survivorship; (2) patient outcomes; (3) complications; and to (4) perform a radiographic analysis of cementless posteriorly stabilized total knee arthroplasty (TKA) patients at a minimum of 7-year follow-up. METHODS: Our original cohort was composed of 114 consecutive cementless posteriorly stabilized total knee arthroplasties (110 patients) performed by a single surgeon between 2008 and 2010. Since our original report, 4 (1 bilateral) patients died and 2 were lost to follow-up...
November 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29192731/up-to-10-year-follow-up-of-the-symax-stem-in-tha-a-danish-single-centre-study
#10
Nina M Edwards, Claus Varnum, Per Kjærsgaard-Andersen
INTRODUCTION: The design of the cementless Symax-HA femoral stem is based on geometrical analysis of human femoral anatomy to optimise the fit within the femur. The stem combines an anatomical proximal section enabling a metaphyseal anchorage with a straight distal section. This results in an improved proximal load transfer.We aimed to determine the overall survival of total hip arthroplasty (THA) in patients operated at our institution with the Symax stem. Secondly, we investigated the cause of revision for patients having THA including the Symax stem...
November 23, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29191444/implant-survival-and-complication-profiles-of-endoprostheses-for-treating-tumor-around-the-knee-in-adults-a-systematic-review-of-the-literature-over-the-past-30-years
#11
Liang Haijie, Li Dasen, Ji Tao, Yang Yi, Tang Xiaodong, Guo Wei
BACKGROUND: Endoprosthetic replacement has become the mainstream method of reconstruction after tumor resection around the knee for decades, but there is a lack of comprehensive review evaluating the implant outcomes. We performed a systematic review to analyze the implant survival and complication profiles of distal femoral replacement (DFR) and proximal tibial replacement (PTR) in adults, and to evaluate the effects of different fixation methods and hinge mechanisms. METHODS: A systematic review of 40 studies with 4748 DFR cases and 1713 PTR cases was performed after searching the PubMed and EMBASE databases...
November 7, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29187778/30-years-of-experience-with-the-cementless-implanted-alloclassic-total-hip-arthroplasty-system-an-ultra-long-term-follow-up
#12
Lorenz Pisecky, Günter Hipmair, Bernhard Schauer, Nikolaus Böhler
Objective: The aim of this study was to evaluate our long-term results with the Zweymüller hochgezogen and SL total hip arthroplasty system. This is the first study to provide a 30-year follow-up. Methods: We reviewed 186 Alloclassic stem systems (Zweymüller hochgezogen (112) and SL (74), implanted in 179 patients from 1986 to 1987.Two different types of cementless acetabular components were used.143 patients had died over the last 30 years, so thirty out of 36 patients being still alive, with a mean follow-up of 29,48 years (SD 0,51), were contacted by telephone and evaluated radiologically and clinically...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29178854/subtrochanteric-shortening-osteotomy-during-cementless-total-hip-arthroplasty-in-young-patients-with-severe-developmental-dysplasia-of-the-hip
#13
Duan Wang, De-Hua Li, Qi Li, Hao-Yang Wang, Ze-Yu Luo, Yang Yang, Fu-Xing Pei, Zong-Ke Zhou
BACKGROUND: This retrospective study was designed to determine complications, functional and radiographic results of transverse subtrochanteric osteotomy during cementless, modular total hip arthroplasty (THA) in a series of active patients younger than 45 years with Crowe Type-III or IV developmental dysplasia of the hip (DDH). METHODS: We followed 49 patients (56 hips) with DDH who were treated with cementless THA, where the acetabular cup was positioned in the anatomic hip center and where a simultaneous transverse femoral osteotomy was performed...
November 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29173817/adaptive-bone-remodeling-with-new-design-of-the-abg-stem-densitometric-study
#14
Jorge López-Subías, Juan J Panisello, Jesús M Mateo-Agudo, Marina Lillo-Adán, Antonio Herrera
To establish the pattern of bone remodeling caused by a cementless, anatomic implant, we intend to evaluate the changes in bone mineral density observed after surgery in the Gruen zones. A controlled, prospective study was carried out, in which a group of 37 patients with primary coxarthrosis were densitrometrically analyzed over the 1 year period following the implant of an ANATO stem (Stryker). The patient's healthy hip was taken as the control. Any differences in the remodeling pattern were compared according to age, body mass index, and implant size...
September 28, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29168071/influence-of-functionally-graded-pores-on-bone-ingrowth-in-cementless-hip-prosthesis-a-finite-element-study-using-mechano-regulatory-algorithm
#15
Faris Tarlochan, Hassan Mehboob, Ali Mehboob, Seung-Hwan Chang
Cementless hip prostheses with porous outer coating are commonly used to repair the proximally damaged femurs. It has been demonstrated that stability of prosthesis is also highly dependent on the bone ingrowth into the porous texture. Bone ingrowth is influenced by the mechanical environment produced in the callus. In this study, bone ingrowth into the porous structure was predicted by using a mechano-regulatory model. Homogenously distributed pores (200 and 800 [Formula: see text]m in diameter) and functionally graded pores along the length of the prosthesis were introduced as a porous coating...
November 22, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29166684/-implantation-of-a-modular-distal-femoral-replacement-with-compressive-osseointegration-as-a-salvage-procedure-in-a-complex-femoral-posttraumatic-setting
#16
Anna Janine Schreiner, Peter Marten de Zwart, Christian Arnscheidt, Ulrich Stöckle, Björn Gunnar Ochs
Background Large bone defects and losses play a crucial role in both tumour surgery and in complex primary and revision total knee replacement. The established options of cemented or uncemented long intramedullary stems are limited by large bone defects and are at risk from relatively high exposure to aseptic loosening. There is no general valid agreement on implant fixation of the distal femur. A further option is the cementless fixation method with compressive osseointegration, based on the so-called Wolff law of bone remodelling...
November 22, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29156073/radiographic-underestimation-of-in-vivo-cup-coverage-provided-by-total-hip-arthroplasty-for-dysplasia
#17
Yong Nie, HaoYang Wang, ZeYu Huang, Bin Shen, Virginia Byers Kraus, Zongke Zhou
The accuracy of using 2-dimensional anteroposterior pelvic radiography to assess acetabular cup coverage among patients with developmental dysplasia of the hip after total hip arthroplasty (THA) remains unclear in retrospective clinical studies. A group of 20 patients with developmental dysplasia of the hip (20 hips) underwent cementless THA. During surgery but after acetabular reconstruction, bone wax was pressed onto the uncovered surface of the acetabular cup. A surface model of the bone wax was generated with 3-dimensional scanning...
November 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/29153634/mid-term-survivals-after-cementless-bipolar-hemiarthroplasty-for-unstable-intertrochanteric-fractures-in-elderly-patients
#18
Jung-Taek Kim, Hyun-Ho Kim, Jae-Hyung Kim, Yoon-Ho Kwak, Eui-Chan Chang, Yong-Chan Ha
BACKGROUND: Treatment of unstable intertrochanteric fracture in elderly patients remains challenging. The purpose of this prospective study is to determine clinical and radiological results of cementless bipolar hemiarthroplasty using a fully porous-coated stem in osteoporotic elderly patients with unstable intertrochanteric fractures with follow-up over 5 years. METHODS: From January 2010 to December 2011, we performed 123 cementless bipolar hemiarthroplasties using fully porous-coated stem to treat unstable intertrochanteric fractures in elderly patients with osteoporosis...
November 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29135666/total-hip-arthroplasty-with-use-of-the-cementless-zweym%C3%A3-ller-alloclassic-system-a-concise-follow-up-at-a-minimum-of-25-years-of-a-previous-report
#19
Ana Cruz-Pardos, Eduardo García-Rey, Eduardo García-Cimbrelo
We previously reported the 10 to 13-year follow-up results for 104 total hip replacements with the Zweymüller Alloclassic stem and a threaded cup in 94 patients. The present study is a clinical and radiographic outcome update after a minimum follow-up of 25 years. Four patients (4 hips) were lost and 46 patients (50 hips) died, leaving 44 patients (50 hips) available for follow-up. Since our previous report, 7 cups and 2 stems were revised. At 20 years, the probability of survival of any component was 84.1% (95% confidence interval [CI], 73...
November 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29134317/the-impact-of-canal-flare-index-on-leg-length-discrepancy-after-total-hip-arthroplasty
#20
Peter Brumat, Borut Pompe, Vane Antolič, Blaž Mavčič
INTRODUCTION: The femoral stem should protrude from femur by an appropriate vertical distance to allow leg length equalization at hip arthroplasty; this distance depends on the size/shape of medullary canal and implant. The relationship between femoral morphology and achievability of leg length restoration is currently unclear. Our aim was to examine the impact of the femoral canal flare index (CFI) on the risk of leg length discrepancy (LLD) after total hip arthroplasty with different femoral stems...
November 13, 2017: Archives of Orthopaedic and Trauma Surgery
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