A new geometrical method (BMCRI Method) for measuring cup anteversion after total hip replacement
Journal Title: International Journal of Orthopaedics Sciences - Year 2017, Vol 3, Issue 3
Abstract
Back ground: In total hip replacement the cup placement is critical. Orientation is determined by anteversion and abduction. We have devised a simple geometrical method to calculate anteversion using simple instruments which does not require complicated conversion tables, scientific calculators, trigonometric tables and special x ray equipment. Objectives: The aim of study is to evaluate the new method in terms of reliability and validity in comparison with other commonly used radiological methods against CT evaluation. Methodology: In 30 hips of 25 consecutive patients, 13 females and 12 males who underwent primary total hip replacement in our institution, the component version in our method was calculated and compared with CT evaluation of angles. The intra and inter observer reliability were assessed. Results: Average CT measurement was 23.28 for anteversion.We found our method had good correlation with CT calculation with average variability of +/_ 3.91380 in planar anteversionand CT methods had excellent intra and inter observer reliability (C.I. = 0.884 to 0.947&0.866 to 0.963). Conclusion: Our method is accurate in comparison with CT (P value>0.05), which does not need any reference tables, conversion tables, scientific calculators, multiple radiation exposures and not time consuming.
Authors and Affiliations
Dr. Manjunath KS, Dr. Gopalakrishna KG, Dr. Hemanth HP
Keywords
Related Articles
- EP ID EP498745
- DOI 10.22271/ortho.2017.v3.i3f.67
- Views 123
- Downloads 0
Novel correction and fixation technique of forearm deformity in cases of hereditary multiple exostoses
We present three cases of forearm deformities which were corrected and fixed with a novel method using intra-osseous wire loops. Two cases of Masada Type I and one case of Masada type IIa forearm deformity were treated w...
Study of clinical and functional outcomes of unstable intertrochanteric femur fractures treated with long proximal femoral nail
Introduction: The following study was conducted to examine the long term clinical, radiological and functional results of unstable intertrochanteric femur fractures treated with long Proximal Femoral Nail. Materials and...
Outcome of total hip replacement after failed bipolar hemiarthroplasty for fracture neck of femur
Introduction: The most common indication for conversion total hip replacement after previous hemiarthroplasty is pain. Pain can result from loosening of the femoral stem, erosion of the acetabulum, a combination of the t...
Cemented modular bipolar hemiarthroplasty of hip in treatment of unstable intertrochanteric fractures in elderly patients
Aim: The aim of this study is to find out this treatment option can lead to the best clinical and functional outcomes. Patients and Methods: Twenty patients admitted to Hospital between Jan 2013 and Dec 2015 with a diagn...
Sacroiliac screw fixation for pelvic ring fractures: A cross sectional study
Pelvic ring fractures are the most difficult to treat fractures in adults, with the increase in prevalence of road traffic accidents, the number of pelvic fractures is increasing over the period of time. The mortality in...