scholarly journals STUDYING THE INITIAL STABILITY OF A NEW TYPE OF HIP REPLACEMENT- SPIRON SHORT STEM

2021 ◽  
Vol 506 (1-2) ◽  
Author(s):  
Mai Duc Thuan ◽  
Nguyen Quoc Dung
Keyword(s):  
Hip Replacement ◽  
Short Stem ◽  
Short Term ◽  
Stem Revision ◽  
Results Of Treatment ◽  
Initial Stability ◽  
Examination Time ◽  
New Type ◽  
Long Stem ◽  
Long Stem Prosthesis

Objective: we perform this study with the following objective: Studying the initial stability of a new type of hip replacement-spiron short stem. Subjects and methods: Experiments to determine the deformability, elasticity and force capacity of the femur were used for the short stem and the long stem replacement corresponds to the original femur without the prosthesis. Along with that, we were evaluated  short-term results of treatment for 70 patients with 92 Spiron hips replacement  in the Institute of Trauma and Orthopedic-108 Military Central Hospital, from 2012 to 2016. Results: The analysis results showed that the Spiron short stem prosthetic had a significantly smaller displacement in the mid-frost bond than the Zweymuller long stem prosthesis. Clinical research: Harris’s score was 45.2 (± 2.4) before surgery. At the final examination time Harris’s score was 91.4 (± 2.5). The rate: very good (75.0%), good (17.4%), average (3.3%), poor (4.3%). There are 02 cases early stem loosening had to stem revision surgery (2.2%). Conclusion: These results show the good initial fixed ability as well as stability when replaced by the Spiron stem.

scholarly journals Total hip replacement using MINIMA® short stem: A short-term follow-up study

2020 ◽  
Vol 11 (4) ◽  
pp. 232-242
Author(s):  
Georgios I Drosos ◽  
Stylianos Tottas ◽  
Ioannis Kougioumtzis ◽  
Konstantinos Tilkeridis ◽  
Christos Chatzipapas ◽  
...  
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Short Stem ◽  
Short Term ◽  
Total Hip ◽  
Follow Up Study

Catheter-directed foam sclerotherapy treatment of saphenous vein incompetence

VASA ◽  
2012 ◽  
Vol 41 (2) ◽  
pp. 120-124 ◽  
Author(s):  
Asciutto ◽  
Lindblad
Keyword(s):  
Saphenous Vein ◽  
Short Term ◽  
Foam Sclerotherapy ◽  
Results Of Treatment ◽  
Ulcer Healing Rate ◽  
Complete Obliteration ◽  
Ceap Classification ◽  
One Year ◽  
The One

Background: The aim of this study is to report the short-term results of catheter-directed foam sclerotherapy (CDFS) in the treatment of axial saphenous vein incompetence. Patients and methods: Data of all patients undergoing CDFS for symptomatic primary incompetence of the great or small saphenous vein were prospectively collected. Treatment results in terms of occlusion rate and patients’ grade of satisfaction were analysed. All successfully treated patients underwent clinical and duplex follow-up examinations one year postoperatively. Results: Between September 2006 and September 2010, 357 limbs (337 patients) were treated with CDFS at our institution. Based on the CEAP classification, 64 were allocated to clinical class C3 , 128 to class C4, 102 to class C5 and 63 to class C6. Of the 188 patients who completed the one year follow up examination, 67 % had a complete and 14 % a near complete obliteration of the treated vessel. An ulcer-healing rate of 54 % was detected. 92 % of the patients were satisfied with the results of treatment. We registered six cases of thrombophlebitis and two cases of venous thromboembolism, all requiring treatment. Conclusions: The short-term results of CDFS in patients with axial vein incompetence are acceptable in terms of occlusion and complications rates.

scholarly journals The impact of reducing the femoral stem length in total hip arthroplasty during gait

2021 ◽  
Author(s):  
Anatole Vilhelm Wiik ◽  
Adeel Aqil ◽  
Bilal Al-Obaidi ◽  
Mads Brevadt ◽  
Justin Peter Cobb
Keyword(s):  
Total Hip Arthroplasty ◽  
Gait Analysis ◽  
Hip Arthroplasty ◽  
Femoral Stem ◽  
Short Stem ◽  
Stem Length ◽  
Practical Consideration ◽  
Total Hip ◽  
Long Stem ◽  
The Impact

Abstract Aim The length of the femoral stem in total hip arthroplasty (THA) is a practical consideration to prevent gait impairment. The aim of this study was to determine if reducing the femoral stem length in THA would lead to impaired gait biomechanics. Methods Patients uniformly with the same brand implant of differing lengths (100 mm vs 140–166 mm) were taken retrospectively from a prospective trial introducing a new short stem. Twelve patients without any other disorder to alter gait besides contralateral differing length stem THA were tested at differing gradients and speed on a validated instrumented treadmill measuring ground reaction forces. An anthropometrically similar group of healthy controls were analysed to compare. Results With the same posterior surgical approach, the offset and length of both hips were reconstructed within 5 mm of each other with an identical mean head size of 36 mm. The short stem was the last procedure for all the hips with gait analysis occurring at a mean of 31 and 79 months postoperatively for the short and long stem THA, respectively. Gait analysis between limbs of both stem lengths demonstrated no statistical difference during any walking condition. In the 90 gait assessments with three loading variables, the short stem was the favoured side 51% of the time compared 49% for the long stem. Conclusion By testing a range of practical walking activities, no lower limb loading differences can be observed by reducing the femoral stem length. A shorter stem demonstrates equivalence in preference during gait when compared to a reputable conventional stem in total hip arthroplasty.

The learning curve following adoption of a novel short-stem prosthesis in total hip arthroplasty: implications on short-term patient outcomes

2018 ◽  
Vol 29 (4) ◽  
pp. 819-825 ◽  
Author(s):  
Jorge A. Padilla ◽  
Afshin A. Anoushiravani ◽  
James E. Feng ◽  
Ran Schwarzkopf ◽  
James Slover ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Learning Curve ◽  
Patient Outcomes ◽  
Hip Arthroplasty ◽  
Short Stem ◽  
Short Term ◽  
Total Hip

Analysis of Jansen Walking Mechanism Using CAD

2010 ◽  
Vol 166-167 ◽  
pp. 297-302 ◽  
Author(s):  
Florina Moldovan ◽  
Valer Dolga
Keyword(s):  
Design Process ◽  
Computer Aided Design ◽  
Walking Robots ◽  
Walking Robot ◽  
Short Term ◽  
Computer Aided ◽  
New Type ◽  
Walking Mechanism ◽  
Aided Design ◽  
Competitive Products

In this article is presented a short classification for walking robots that are based on leg locomotion and the main objectives that walking robots designers must achieve. The leg configuration of the walking robot is essential for obtaining a stable motion. Computer aided design process offers certain advantages for designers who attend to realize competitive products with fewer errors and in a short term. The aim of this article is to present the graphical results of the kinematic analysis of a new type of walking mechanism designed by Dutch physicist and sculptor Theo Jansen using Pro Engineer program and SAM, in order to compare the results.

Cemented long-stem revision total knee arthroplasty

2003 ◽  
Vol 18 (5) ◽  
pp. 592-599 ◽  
Author(s):  
Andrew L Whaley ◽  
Robert T Trousdale ◽  
James A Rand ◽  
Arlen D Hanssen
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Revision Total Knee Arthroplasty ◽  
Stem Revision ◽  
Total Knee ◽  
Long Stem

Complications and radiographic findings following cemented total hip replacement

2006 ◽  
Vol 19 (03) ◽  
pp. 172-179 ◽  
Author(s):  
R. S. Gilley ◽  
F. S. Shofer ◽  
A. S. Kapatkin ◽  
M. S. Bergh
Keyword(s):  
Total Hip Replacement ◽  
Revision Surgery ◽  
Hip Replacement ◽  
Femoral Stem ◽  
Short Term ◽  
Radiographic Appearance ◽  
Radiographic Findings ◽  
Total Hip ◽  
Technical Errors ◽  
Radiographic Changes

SummaryCemented total hip replacement (cTHR) is commonly performed to treat intractable coxofemoral pain in dogs. While owners generally perceive a good outcome after the procedure, the longevity of the implant may be limited by complications such as infection and aseptic loosening. The objective of this retrospective study was to identify the prevalence of complications and radiographic changes following cTHR, and to identify factors that may predispose to a need for revision surgery. Medical records and radiographs from 97 dogs that underwent cTHR were evaluated for signalment, preoperative degree of osteoarthritis, technical errors, intra-operative culture results, and the post-operative radiographic appearance of the implant. The complications occurring in the intra-operative and short-term (<eight week) periods, and the radiographic appearance of the implant in the long-term (>eight week) time period were recorded. Mean (±SD) follow-up time was 1.1 ± 1.6 years (range: 0–7.7 years). Seven dogs had a short-term complication and a revision surgery was performed in eleven dogs. Osseous or cement changes were radiographically detectable in the majority of cTHR. Eccentric positioning of the femoral stem and the presence of radiolucent lines at the femoral cement-bone interface were positively associated with the occurrence of revision surgery. The clinical significance of the periprosthetic radiographic changes is unclear and further investigation is warranted.

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