Drosos GI, Tottas S, Kougioumtzis I, Tilkeridis K, Chatzipapas C, Ververidis A. Total hip replacement using MINIMA® short stem: A short-term follow-up study. World J Orthop 2020; 11(4): 232-242 [PMID: 32405472 DOI: 10.5312/wjo.v11.i4.232]
Corresponding Author of This Article
Georgios I Drosos, MD, PhD, Professor of Orthopaedics, Orthopaedic Department, Democritus University of Thrace, University General Hospital of Alexandroupolis, St. Niarhos Street, Dragana, Alexandroupolis 68100, Greece. drosos@otenet.gr
Research Domain of This Article
Orthopedics
Article-Type of This Article
Retrospective Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
World J Orthop. Apr 18, 2020; 11(4): 232-242 Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.232
Total hip replacement using MINIMA® short stem: A short-term follow-up study
Georgios I Drosos, Stylianos Tottas, Ioannis Kougioumtzis, Konstantinos Tilkeridis, Christos Chatzipapas, Athanasios Ververidis
Georgios I Drosos, Stylianos Tottas, Ioannis Kougioumtzis, Konstantinos Tilkeridis, Christos Chatzipapas, Athanasios Ververidis, Orthopaedic Department, Democritus University of Thrace, University General Hospital of Alexandroupolis, Alexandroupolis 68100, Greece
Author contributions: All authors helped to perform the research; Drosos GI contribution to the manuscript writing, performing procedures, drafting conception, design and data analysis; Tottas S contribution to writing the manuscript, drafting conception and design; Kougioumtzis I contribution to writing the manuscript; Tilkeridis K contribution to writing the manuscript, performing procedures; Christos C contribution to writing the manuscript; Ververidis A contribution to writing the manuscript, performing procedures.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the University General Hospital of Alexandroupolis.
Informed consent statement: Patients were not required to give informed consent to the study because the analysis used anonymous clinical data that were obtained after each patient agreed to treatment by written consent.
Conflict-of-interest statement: All authors declare no conflicts-of-interest related to this article.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Georgios I Drosos, MD, PhD, Professor of Orthopaedics, Orthopaedic Department, Democritus University of Thrace, University General Hospital of Alexandroupolis, St. Niarhos Street, Dragana, Alexandroupolis 68100, Greece. drosos@otenet.gr
Received: October 29, 2019 Peer-review started: October 29, 2019 First decision: December 12, 2019 Revised: December 19, 2019 Accepted: March 12, 2020 Article in press: March 12, 2020 Published online: April 18, 2020 Processing time: 167 Days and 6.5 Hours
ARTICLE HIGHLIGHTS
Research background
Total hip replacement is considered as one of the most successful procedures in orthopedic surgery. The length of the femoral stem is one of the most important geometrical and mechanical characteristics of the prosthesis. The use of short stems started more than 30 years ago.
Research motivation
Clinical studies, meta-analysis as well as comparative studies have shown similar survival rate between conventional and short stems. However, for most short stems the available data is controversial regarding short or medium term results. Several different implants have been currently available, classified in different categories. Yet, the existing literature regarding clinical results is limited to some of these implants.
Research objectives
Our aim is to report the short-term clinical and radiological results of a novel squared section, tapered design –with four conicity- short stem in total hip replacement.
Research methods
This is a report of a prospectively collected data of 61 consecutive patients undergone total hip replacement using the MINIMA® short stem (Lima Corporate, Udine, Italy) with a minimum follow-up time of 1 year.
Research results
The mean time of follow-up was of 33.4 mo (2.8 years) with a range of 12-57 months (1-4.8 years). Apart from a deep vein thrombosis in one patient at 6 weeks postoperatively, no other complications such us revision, infection, hip dislocation, peri-prosthetic fracture were appeared. Additionally, the functional outcomes, pain score and satisfaction rate were significantly improved at the postoperative follow- up period. The femoral stem was classified as stable bone ingrowth in all patients. No radiolucent lines were observed in any of the modified seven zones of Gruen in anteroposterior and lateral views. Regarding the femoral component, no radiolucent lines were observed in any zones according to DeLee and Charnley.
Research conclusions
The clinical and radiological results of our study are considered as excellent, without major complications and the follow-up in 56.9% of our patients is more than 3 years.
Research perspectives
Further research based on well designed studies with longer follow-up examination need to be performed, in order to elucidate the efficacy of short stems.
