Retrospective Study
Copyright ©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Sep 18, 2017; 8(9): 705-709
Published online Sep 18, 2017. doi: 10.5312/wjo.v8.i9.705
Acetabular components with or without screws in total hip arthroplasty
Murad Pepe, Onur Kocadal, Tamer Erener, Kubilay Ceritoglu, Ertugrul Aksahin, Cem Nuri Aktekin
Murad Pepe, Onur Kocadal, Tamer Erener, Kubilay Ceritoglu, Cem Nuri Aktekin, Department of Orthopedics and Traumatology, Ankara Training and Research Hospital, 06340 Ankara, Turkey
Ertugrul Aksahin, Orthopedics and Traumatology, MedicalPark Hospital, 06680 Ankara, Turkey
Author contributions: Pepe M designed the research, planned the methods to generate hypothesis, conducted literature search and wrote the paper; Kocadal O designed the research and managed of the patients; Erener T designed the research, organized and reported data, contributed to the analysis; Ceritoglu K conducted literature search and explained the results; Aksahin E and Aktekin CN supervised the report.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the Ankara Training and Research Hospital.
Informed consent statement: Patients were not required to give informed consent to the study because the retrospective anonymous clinical data were used that were obtained after each patient agreed to treatment by written consent. These consent forms are available in hospital archives patient’s files. For full disclosure, the details are published on the home page of our hospital (http://www.ankarahastanesi.gov.tr/).
Conflict-of-interest statement: We have no financial relationships to disclose.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at dr_muradpepe@hotmail.com. Participants gave informed consent for data sharing.
Open-Access: 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/
Correspondence to: Murad Pepe, MD, Department of Orthopedics and Traumatology, Ankara Training and Research Hospital, Ulucanlar Street, Altindag, 06340 Ankara, Turkey. dr_muradpepe@hotmail.com
Telephone: +90-545-8571807
Received: February 9, 2017
Peer-review started: February 15, 2017
First decision: March 27, 2017
Revised: April 10, 2017
Accepted: June 6, 2017
Article in press: June 7, 2017
Published online: September 18, 2017
Processing time: 215 Days and 23.8 Hours
Abstract
AIM

To compare the operation time, blood loss, and early outcomes of acetabular components with and without the screw.

METHODS

Thirty patients who underwent cementless acetabular component with or without screw and whose follow-up exceeded one year period in total hip arthroplasty were evaluated. A posterior approach was used in all surgical procedures by one experienced surgeon. Demographic data, operation time, intra- and postoperative blood loss volume, follow-up clinical score, cup migration, and osteolysis were recorded. The Kolmogorov-Smirnov test was performed for testing the normality of study data. Mann-Whitney U test was used to analyze the inter-group differences. A P-value of ≤ 0.05 was considered statistically significant.

RESULTS

Acetabular components were used in 16 (53.3%) patients with screw and 14 (46.7%) without screw. After one year of follow-up, an osteolytic lesion of 3 mm was found in only one patient in the screw group. No cup migration was encountered. Intra-group mean Harris hip score significantly increased, but there was no significant inter-group difference. While the mean operation time of the screw group was 121.8 min (range; 95-140), it was 102.7 min (range; 80-120) in the no-screw group, and this difference was statistically significant (P = 0.002). The mean intraoperative/postoperative, and total blood loss were 556.6 mL (range: 350-800)/423.3 mL (range: 250-600), and 983.3 mL (range: 600-1350), respectively in the screw group; and 527 mL (range: 400-700)/456 mL (range: 230-600), and 983 mL (range: 630-1250), respectively in the no-screw group. The blood loss difference between the two groups was not significant. In the screw group, the operation time was 19.1 min longer than the no-screw group, and this difference was statistically significant.

CONCLUSION

Acetabular components with or without screw have similar results, but the use of screw increases the operation time significantly, while not changing the blood loss volume.

Keywords: Hip arthroplasty; Acetabular fixation; With screw; Without screw; Operation time

Core tip: This is a retrospective study comparing the perioperative data and early outcomes of the screw and no-screw acetabular components in total hip arthroplasty. There is no study comparing the screw and no-screw components for perioperative data in the literature. Both components were characterized with similar clinical outcomes in the early term. But additional screws significantly increase the mean operative time.