keyword
MENU ▼
Read by QxMD icon Read
search

Bone cement

keyword
https://www.readbyqxmd.com/read/28109761/survivorship-of-metaphyseal-sleeves-in-revision-total-knee-arthroplasty
#1
Brian P Chalmers, Nicholas M Desy, Mark W Pagnano, Robert T Trousdale, Michael J Taunton
BACKGROUND: Metaphyseal fixation has promising early results in providing component stability and fixation in revision total knee arthroplasty (TKA). However, there are limited studies on midterm results of metaphyseal sleeves. We analyzed complications, rerevisions, and survivorship free of revision for aseptic loosening of metaphyseal sleeves in revision TKA. METHODS: Two hundred eighty patients with 393 metaphyseal sleeves (144 femoral, 249 tibial) implanted during revision TKA from 2006-2014 were reviewed...
December 14, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28108780/cement-augmented-screws-in-a-cervical-two-level-corpectomy-with-anterior-titanium-mesh-cage-reconstruction-a-biomechanical-study
#2
Sebastian Hartmann, Claudius Thomé, Anja Tschugg, Johannes Paesold, Pujan Kavakebi, Werner Schmölz
STUDY DESIGN: Biomechanical investigation. PURPOSE: Cervical two-level corpectomies with anterior-only instrumentation are associated with a high rate of implant-related complications. These procedures, therefore, often require an additional dorsal instrumentation to prevent screw loosening. Cement augmentation of the anterior screws in two-level corpectomies might stabilize the construct, so that a second dorsal procedure could be avoided. To evaluate the screw anchorage in cervical anterior-only procedures, an ex vivo evaluation of the range of motion (ROM) in two-level corpectomies (C4 and C5), with and without cement augmentation of the anterior screws, was carried out in this study...
January 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28108403/risk-of-cement-leakage-and-pulmonary-embolism-by-bone-cement-augmented-pedicle-screw-fixation-of-the-thoracolumbar-spine
#3
Insa Janssen, Yu-Mi Ryang, Jens Gempt, Stefanie Bette, Julia Gerhardt, Jan Kirschke, Bernhard Meyer
BACKGROUND: Cement augmented pedicle screw instrumentation (CAPSI) of the thoracolumbar spine is indicated in osteoporosis or osteopenia to improve pullout strength and biomechanical stability of pedicle screws (PS). Only few studies report on the incidence of pulmonary cement embolism or other complications associated with CAPSI. PURPOSE: Aim of this retrospective study was to assess the rate of CAPSI associated complications. STUDY DESIGN: Retrospective cohort study...
January 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28107240/an-in-vitro-evaluation-of-fracture-reduction-achieved-by-inflatable-bone-tamps-under-simulated-physiological-load
#4
Michael Gordon, Walter C Peppelman, William Beutler, Damien OʼHalloran, Suresh R Chinthakunta, Brandon Bucklen
STUDY DESIGN: An in vitro biomechanical study. OBJECTIVE: To determine the fracture reduction achieved by a novel inflatable bone tamp under simulated physiological load. SUMMARY OF BACKGROUND DATA: Previous biomechanical studies have showed that kyphoplasty allows near-total restoration of lost vertebral height in unloaded conditions and partial height restoration under simulated physiological loads. Clinically, loss of reduction has been observed after bone tamp deflation, before cement injection...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28107234/comparison-between-acrylic-cage-and-polyetheretherketone-peek-cage-in-single-level-anterior-cervical-discectomy-and-fusion-a-randomized-clinical-trial
#5
Majid R Farrokhi, Zahra Nikoo, Mehrnaz Gholami, Khadijeh Hosseini
STUDY DESIGN: Prospective, single-blind randomized-controlled clinical study. OBJECTIVE: To compare polyetheretherketone (PEEK) cage with a novel Acrylic cage to find out which fusion cage yielded better clinical outcomes following single-level anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: ACDF is considered a standard neurosurgical treatment for degenerative diseases of cervical intervertebral disks. There are many options, including bone grafts, bone cement, and spacers made of titanium, carbon fiber, and synthetic materials, used to restore physiological disk height and enhance spinal fusion, but the ideal device, which would provide immediate structural support and subsequent osteointegration and stability, has not been identified yet...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28102450/hidden-blood-loss-and-the-influential-factors-after-percutaneous-kyphoplasty-surgery
#6
Yao-Sen Wu, Hui Zhang, Wen-Hao Zheng, Zhen-Hua Feng, Ze-Xin Chen, Yan Lin
PURPOSE: Percutaneous kyphoplasty (PKP) is a minimally invasive procedure for the treatment of osteoporotic vertebral compression fractures (OVCFs). It is generally considered that there is little blood loss during the surgery. However, a significant perioperative hidden blood loss (HBL) is neglected. This study was to examine the amount of HBL and determine the influential factors during PKP. METHODS: From January 2015 to January 2016, 115 patients with OVCFs who were scheduled to have a PKP were enrolled in this study...
January 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28102000/bone-regeneration-in-minipigs-via-calcium-phosphate-cement-scaffold-delivering-autologous-bmscs-and-platelet-rich-plasma
#7
Gengtao Qiu, Zhanjun Shi, Hockin H K Xu, Bo Yang, Michael D Weir, Guangjun Li, Yang Song, Jixing Wang, Kevin Hu, Ping Wang, Liang Zhao
Macroporous calcium phosphate cement (CPC) with stem cell seeding is promising for bone regeneration. The objective of this study was to investigate the effects of co-delivering autologous bone marrow mesenchymal stem cells (BMSCs) and autologous platelet-rich plasma (PRP) in CPC scaffold for bone regeneration in minipigs for the first time. Twelve female adult Tibet minipigs (12-18 months old) were used. A cylindrical defect with 10 mm height and 8 mm diameter was prepared at the femoral condyle. Two bone defects were created in each minipig, one at each side of the femoral condyle...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28101655/percutaneous-vertebral-augmentation-in-fragility-fractures-indications-and-limitations
#8
O Gonschorek, S Hauck, T Weiß, V Bühren
INTRODUCTION: There is still no general consensus about the management of osteoporotic vertebral fractures. Recommendations depend on type of fracture, grade of instability, bone quality, and general conditions of the patient. Spontaneous fractures may be considered to be treated different compared to cases with high-velocity trauma. METHODS: According to the DVO, patients without trauma should first be treated conservatively. However, there is no more strict time protocol of 3 or 6 week conservative treatment before operations may be indicated...
January 18, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#9
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28098926/relevance-of-osteoclast-specific-enzyme-activities-in-cell-based-in-vitro-resorption-assays
#10
A Bernhardt, K Koperski, M Schumacher, M Gelinsky
Cell-based in vitro resorption assays are an important tool to simulate the in vivo biodegradation of resorbable bone graft materials and to predict their clinical performance. The present study analyses the activity of osteoclast-specific enzymes as potential surrogate measures for classical pit assay, which is not applicable on irregular structured materials. Osteoclasts derived from human peripheral blood mononuclear cells were cultivated on different surfaces: calcium phosphate bone cements (CPC), dentin discs, osteoblast-derived extracellular matrix (ECM) and tissue culture polystyrene as control...
January 18, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28098744/trabecular-microstructure-and-damage-affect-cement-leakage-from-the-basivertebral-foramen-during-vertebral-augmentation
#11
Shengyun Li, Chongyan Wang, Zhi Shan, Junhui Liu, Tianming Yu, Xuyang Zhang, Shunwu Fan, Blaine A Christiansen, Wenyuan Ding, Fengdong Zhao
STUDY DESIGN: A prospective study on cadaver specimens. OBJECTIVE: To explore why cement leakage from BF easily occurs during vertebral augmentation procedures. SUMMARY OF BACKGROUND DATA: Type B (through BF, basivertebral foramen) cement leakage is the most common type after vertebral augmentation, but the mechanism of this is still controversial. The contribution of vertebral trabecular bone orientation and trabecular damage during compression fracture to cement leakage is still unknown...
January 16, 2017: Spine
https://www.readbyqxmd.com/read/28097110/comparative-study-of-bipolar-hemiarthroplasty-for-femur-neck-fractures-treated-with-cemented-versus-cementless-stem
#12
Jung-Yun Choi, Yerl-Bo Sung, Joo-Hyung Kim
PURPOSE: To compare and analyze clinical and radiologic outcomes of cemented versus cementless bipolar hemiarthroplasty for treatment of femur neck fractures. MATERIALS AND METHODS: A total of 180 patients aged 65 years and over older who underwent bipolar hemiarthroplasty for treatment of displaced femur neck fractures (Garden stage III, IV) from March 2009 to February 2014 were included in this study. Among the 180 patients, 115 were treated with cemented stems and 65 patients with cementless stems...
December 2016: Hip & Pelvis
https://www.readbyqxmd.com/read/28094246/development-of-sr-incorporated-biphasic-calcium-phosphate-bone-cement
#13
Hui Zhu, Dagang Guo, Wenli Qi, Kewei Xu
To follow the design strategy of traditional biphasic calcium phosphate (BCP) ceramic, in the present study, strontium-doped biphasic calcium phosphate bone cement (Sr-BCPC) composites comprising Sr-β-tricalcium phosphate (TCP)/Sr-hydroxyapatite (HAP) had been prepared for the first time using Sr x -β-TCP/tetracalcium phosphate (TTCP) as a cement powder and diluted phosphoric acid as a cement liquid. The phase composition, setting time, compressive strength, washout resistance, in vitro degradation rate, microstructure evolutions, hydration dynamics and cytotoxicity of Sr-BCPC at various Sr contents were intensively investigated...
January 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28089184/bone-wax-is-effective-in-reducing-blood-loss-after-total-knee-arthroplasty
#14
Ing H Moo, Jerry Y Q Chen, Eric H Pagkaliwaga, See W Tan, Kein B Poon
BACKGROUND: Total knee arthroplasty (TKA) is associated with major blood loss and blood transfusion is often required. This study aimed to evaluate the efficacy of bone wax in reducing blood loss and transfusion rates after TKA. METHODS: A prospective randomized controlled study that included 100 patients undergoing primary unilateral TKA with cement was conducted in a tertiary center between March 2014 and June 2014. The bone wax group received 2.5 g of bone wax, applied onto the uncovered bone around the prostheses and the nail holes before the tourniquet was released, whereas the control group had hemostasis achieved using electrocautery only...
December 24, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28089125/long-term-outcomes-of-permanent-cement-spacers-in-the-infected-foot
#15
Tammer Elmarsafi, Noah G Oliver, John S Steinberg, Karen K Evans, Christopher E Attinger, Paul J Kim
When osteomyelitis occurs in the infected foot, cement spacers have been used as a limb salvage tool. The aim of the present study was to assess the longevity and outcomes in high-risk, low-demand patients who have undergone resection of bone and subsequent placement of permanent antibiotic-eluting cement spacers in the foot. A retrospective review case series of 30 patients who had undergone placement of a permanent antibiotic-eluting cement spacer in the foot were evaluated for retention, spacer exchange, removal, amputation, and functional status...
January 6, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28087408/effects-of-loading-concentration-blood-and-synovial-fluid-on-antibiotic-release-and-anti-biofilm-activity-of-bone-cement-beads
#16
Devendra H Dusane, Scott M Diamond, Cory S Knecht, Nicholas R Farrar, Casey W Peters, Robert P Howlin, Matthew C Swearingen, Jason H Calhoun, Roger D Plaut, Tanya M Nocera, Jeffrey F Granger, Paul Stoodley
Antibiotic loaded cement beads are commonly used for the treatment of biofilm related orthopaedic periprosthetic infections; however the effects of antibiotic loading and exposure of beads to body fluids on release kinetics are unclear. The purpose of this study was to determine the effects of (i) antibiotic loading density (ii) loading amount (iii) material type and (iv) exposure to body fluids (blood or synovial fluid) on release kinetics and efficacy of antibiotics against planktonic and lawn biofilm bacteria...
January 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28077394/metal-backed-versus-all-polyethylene-unicompartmental-knee-arthroplasty-proximal-tibial-strain-in-an-experimentally-validated-finite-element-model
#17
C E H Scott, M J Eaton, R W Nutton, F A Wade, S L Evans, P Pankaj
OBJECTIVES: Up to 40% of unicompartmental knee arthroplasty (UKA) revisions are performed for unexplained pain which may be caused by elevated proximal tibial bone strain. This study investigates the effect of tibial component metal backing and polyethylene thickness on bone strain in a cemented fixed-bearing medial UKA using a finite element model (FEM) validated experimentally by digital image correlation (DIC) and acoustic emission (AE). MATERIALS AND METHODS: A total of ten composite tibias implanted with all-polyethylene (AP) and metal-backed (MB) tibial components were loaded to 2500 N...
January 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28070650/revision-total-knee-arthroplasty-due-to-bone-cement-and-metal-hypersensitivity
#18
Ioannis P Stathopoulos, Nicolaos Andrianopoulos, Dimitrios Paschaloglou, Ioannis Tsarouchas
INTRODUCTION: Hypersensitivity to implants is a rare complication of total knee arthroplasty (TKA). Metal and, less frequently, bone cement can produce allergic symptomatology that if unresponsive to conservative treatment could lead to revision. MATERIALS AND METHODS: We present the case of a patient with generalized pruritus and metal taste starting during the first postoperative month after TKA. Dermal allergy exams revealed that the patient had hypersensitivity to nickel sulphate and cobalt chloride and bone cement...
January 9, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28067099/dynamic-rsa-for-the-evaluation-of-inducible-micromotion-of-oxford-uka-during-step-up-and-step-down-motion
#19
Kristian Horsager, Bart L Kaptein, Lone RøMer, Peter B Jørgensen, Maiken Stilling
Background and purpose - Implant inducible micromotions have been suggested to reflect the quality of the fixation interface. We investigated the usability of dynamic RSA for evaluation of inducible micromotions of the Oxford Unicompartmental Knee Arthroplasty (UKA) tibial component, and evaluated factors that have been suggested to compromise the fixation, such as fixation method, component alignment, and radiolucent lines (RLLs). Patients and methods - 15 patients (12 men) with a mean age of 69 (55-86) years, with an Oxford UKA (7 cemented), were studied after a mean time in situ of 4...
January 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28058496/-traumatology-in-the-elderly-multimodal-prevention-of-delirium-and-use-of-augmentation-techniques
#20
D Wähnert, A Roos, J Glasbrenner, K Ilting-Reuke, P Ohrmann, G Hempel, T Duning, N Roeder, M J Raschke
Recent data show that 20-80% of surgery patients are affected by delirium during inpatient clinical treatment. The medical consequences are often dramatic and include a 20 times higher mortality and treatment expenses of the medical unit increase considerably. At the University Hospital of Münster a multimodal and interdisciplinary concept for prevention and management of delirium was developed: all patients older than 65 years admitted for surgery are screened by a specialized team for the risk of developing delirium and treated by members of the team if there is a risk of delirium...
January 5, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
keyword
keyword
33922
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"