Open AccessLACK OF SIGNIFICANT ASSOCIATION BETWEEN COMPONENT ALIGNMENT AND FUNCTIONAL OUTCOME IN TOTAL HIP ARTHROPLASTY
Author(s) -
Ismail Hadisoebroto Dilogo,
Wildan Latief,
Muh Trimugroho Fahrudhin
Publication year - 2018
Publication title -
journal of southeast asian medical research
Language(s) - English
Resource type - Journals
ISSN - 2697-5424
DOI - 10.55374/jseamed.v2i1.21
Subject(s) - squatting position , prosthesis , medicine , range of motion , orthodontics , acetabulum , confounding , radiography , external rotation , total hip arthroplasty , arthroplasty , total hip replacement , hip flexion , orientation (vector space) , harris hip score , internal rotation , surgery , physical therapy , geometry , mathematics , engineering , mechanical engineering
Background : Total hip replacement (THR) failure isinfluenced bythe prosthesis component orientation. The debate is still ongoing to determine the best angles for acetabular or femoral components. Objective :To evaluate the functional outcome and hip range of motion (ROM) post THR associated with Prosthesis orientationangle. Methods : This cross sectional analytical study was conducted at the RSUPN CiptoMangunkusumo HospitalJakartain July-September 2014, and selected 38 subjects among 83 primary THR treated through January 2008 – May 2014.Prosthesis orientationangle(acetabular abduction, acetabular anteversion, femoral anteversion and their combinations)are measured from AP and lateral radiographs. Functional outcomes are obtained from Harris Hip Score (HHS) and hip ROM, including Attahiyat praying position and squatting position. Results :There is no significant differences between prosthesis orientationanglesin safe and non-safe groups when compared with the HHS (p>0.05). There were no significant differences between component orientation angles with theROM, except on internal rotation at the safe zone (p=0.015). As many as 22.6%hip have the ability to perform Attahiyat and squatting with more at the non-safezoneacetabular abduction group (p=0.035). Conclusions :THR with prosthesis fixed in non-safe and safe zones of orientation gave similarly good functional outcomes. Non safe zone of acetabular abduction angle group show more internal rotation range of motion. Patient’s fear, habit, and obesity in performing such tasks were unable to be ruled out as confounders.