scholarly journals Modelling and Optimization of Bone-Cutting Forces in Orthopaedic Surgery

2003 ◽  
pp. 254-261 ◽  
Author(s):  
Christopher Plaskos ◽  
Antony J. Hodgson ◽  
Philippe Cinquin
Keyword(s):  
Cutting Forces ◽  
Orthopaedic Surgery ◽  
Modelling And Optimization

scholarly journals Modelling and Optimization of Cutting Forces and Tool Wear in Milling of Aerospace Al 6061(Sic) Composites

2019 ◽  
Vol 8 (10S) ◽  
pp. 53-59
Keyword(s):  
Tool Wear ◽  
Cutting Forces ◽  
Forecast Model ◽  
Processing Parameters ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Predicted Model ◽  
Sic Composites ◽  
The Impact ◽  
Modelling And Optimization

The aftereffects of modelling and the investigation of the aluminium (Al) and aluminium based (Al6061) silicon carbide reinforcement (SiCp) Metal matrix composite (MMCs) during milling is analysed. The impact of processing parameters, for example, speed, feed rate, depth of cut on tool wear and the cutting forces has been examined. The analysis of the cutting forces in the milling of Al and its MMC plays an important role in characterizing the cutting operations through the response surface methodology (RSM) forecast model. The predicted model used to decide the consolidated impact of machining parameters on the cutting forces (Cf) and tool Flank wear (Vbmax.). The consequences of the model were contrasted with the experimental results and observed that the effects of the forecast help in the evolution of process parameters to minimizing the Cf and Vbmax.

scholarly journals MODELLING AND OPTIMIZATION OF THE CUTTING FORCES DURING TI6AL4V MILLING PROCESS USING THE RESPONSE SURFACE METHODOLOGY AND DYNAMOMETER

2019 ◽  
Vol 2019 (04) ◽  
pp. 3353-3363 ◽  
Author(s):  
I.A. Daniyan ◽  
I. Tlhabadira ◽  
S.N. Phokobye ◽  
M. Siviwe ◽  
K. Mpofu
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Cutting Forces ◽  
Milling Process ◽  
Modelling And Optimization

Atlas of Orthopaedic Surgery

JAMA ◽  
1974 ◽  
Vol 230 (6) ◽  
pp. 906
Author(s):  
V. T. WORRALL
Keyword(s):  
Orthopaedic Surgery

Post Discharge Clinically Overt Venous Thromboembolism in Orthopaedic Surgery Patients with Negative Venography -an Overview Analysis

1996 ◽  
Vol 76 (06) ◽  
pp. 0887-0892 ◽  
Author(s):  
Serena Ricotta ◽  
Alfonso lorio ◽  
Pasquale Parise ◽  
Giuseppe G Nenci ◽  
Giancarlo Agnelli
Keyword(s):  
Venous Thromboembolism ◽  
Orthopaedic Surgery ◽  
Diagnostic Methods ◽  
Future Research ◽  
Post Discharge ◽  
Pharmacological Prophylaxis ◽  
Vein Thrombosis ◽  
Overview Analysis ◽  
Major Orthopaedic Surgery

SummaryA high incidence of post-discharge venous thromboembolism in orthopaedic surgery patients has been recently reported drawing further attention to the unresolved issue of the optimal duration of the pharmacological prophylaxis. We performed an overview analysis in order to evaluate the incidence of late occurring clinically overt venous thromboembolism in major orthopaedic surgery patients discharged from the hospital with a negative venography and without further pharmacological prophylaxis. We selected the studies published from January 1974 to December 1995 on the prophylaxis of venous thromboembolism after major orthopaedic surgery fulfilling the following criteria: 1) adoption of pharmacological prophylaxis, 2) performing of a bilateral venography before discharge, 3) interruption of pharmacological prophylaxis at discharge in patients with negative venography, and 4) post-discharge follow-up of the patients for at least four weeks. Out of 31 identified studies, 13 fulfilled the overview criteria. The total number of evaluated patients was 4120. An adequate venography was obtained in 3469 patients (84.1%). In the 2361 patients with negative venography (68.1%), 30 episodes of symptomatic venous thromboembolism after hospital discharge were reported with a resulting cumulative incidence of 1.27% (95% C.I. 0.82-1.72) and a weighted mean incidence of 1.52% (95% C.I. 1.05-1.95). Six cases of pulmonary embolism were reported. Our overview showed a low incidence of clinically overt venous thromboembolism at follow-up in major orthopaedic surgery patients discharged with negative venography. Extending pharmacological prophylaxis in these patients does not appear to be justified. Venous thrombi leading to hospital re-admission are likely to be present but asymptomatic at the time of discharge. Future research should be directed toward improving the accuracy of non invasive diagnostic methods in order to replace venography in the screening of asymptomatic post-operative deep vein thrombosis.

Diabetes and other frequent clinical problems in patients admitted in orthopaedic surgery

2018 ◽  
Author(s):  
Maria Molina Vega ◽  
Pilar Losada Mora ◽  
Alfonso Garrido Castro ◽  
Juan L Carrillo Linares
Keyword(s):  
Orthopaedic Surgery ◽  
Clinical Problems
Sign in / Sign up

Export Citation Format

Share Document