Open AccessHETEROTOPIC OSSIFICATION FOLLOWING NONCEMENTED HIP REPLACEMENT: A COMPARATIVE STUDY USING MINIMAL INVASIVE SURGERY VS. CONVENTIONAL ANTEROLATERAL APPROACH
Author(s) -
Piyapong Chinkam-akrapat
Publication year - 2019
Publication title -
journal of southeast asian medical research
Language(s) - English
Resource type - Journals
ISSN - 2697-5424
DOI - 10.55374/jseamed.v3i1.45
Subject(s) - medicine , heterotopic ossification , exact test , surgery , statistical significance , incidence (geometry) , total hip replacement , soft tissue , chi square test , ossification , statistics , physics , mathematics , optics
Background: A conventional anterolateral approach was previously a remedy for total hip replacement. Currently, an intermuscular approach is relatively safe, provides excellent exposure and causes less soft tissue damage than the traditional approach.
Objective: The study aimed to compare heterotopic ossification (HO) between minimal invasive surgery (MIS) and conventional anterolateral approach among patients having noncemented total hip replacement.
Methods: A retrospective study was conducted among 47 patients (52 sites) with noncemented total hip replacement who were randomly divided in 2 groups. The first group received treatment with MIS whereas the second group received the conventional anterolateral approach. The incidence of HO was recorded and followed-up for a minimum of 12 months. The demographic data of both groups were analyzed using the chi-square test and the discrete data were analyzed using the chi-square test and Fisher’s exact test.
Results: The incidence of HO in the MIS and conventional anterolateral approach group were within 37.9 and 56.5%, respectively. After 12 months of followed-up, the incidence of HO in the MIS group did not significantly differ compared with that of the conventional group (p=0.291). Severe HO was within 13.79 and 8.69%, respectively (p=0.682) and neither group required further surgery.
Conclusion: The MIS group showed a lower incidence of HO than that found in the conventional anterolateral approach group without statistical significance.