Retrospective Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Apr 18, 2022; 13(4): 400-407
Published online Apr 18, 2022. doi: 10.5312/wjo.v13.i4.400
Integrity of the hip capsule measured with magnetic resonance imaging after capsular repair or unrepaired capsulotomy in hip arthroscopy
Niels H Bech, Lode A van Dijk, Sheryl de Waard, Gwendolyn Vuurberg, Inger N Sierevelt, Gino MMJ Kerkhoffs, Daniël Haverkamp
Niels H Bech, Sheryl de Waard, Gino MMJ Kerkhoffs, Department of Orthopedic Surgery, Amsterdam University Medical Center, Amsterdam 1105 AZ, Netherlands
Niels H Bech, Inger N Sierevelt, Daniël Haverkamp, Department of Orthopedic Surgery, Xpert Orthopedic Surgery Clinic, Amsterdam 1101 EA, Netherlands
Niels H Bech, Lode A van Dijk, Department of Orthopedic Surgery, Tergooi Ziekenhuis, Hilversum 1213 XZ, Netherlands
Gwendolyn Vuurberg, Department of Radiology and Nuclear Medicine, Rijnstate Hospital, Arnhem 6815 AD, Netherlands
Gwendolyn Vuurberg, Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam 1105 AZ, Netherlands
Inger N Sierevelt, Centre for Orthopaedic Research, Spaarne Ziekenhuis, Hoofddorp 2134 TM, Netherlands
Gino MMJ Kerkhoffs, Academic Center for Evidence-Based Sports Medicine, Amsterdam University Medical Center, Amsterdam 1105 AZ, Netherlands
Gino MMJ Kerkhoffs, Amsterdam Collaboration on Health and Safety in Sports, Amsterdam UMC/IOC Research Center, Amsterdam 1105 AZ, Netherlands
Author contributions: Bech NH drafted the manuscript, was involved with data collection, and assisted with data analysis; van Dijk LA drafted the manuscript and participated in design of the study; de Waard S was involved with data collection, and assisted with data analysis; Vuurberg G drafted the manuscript, and assisted with data analysis; Sierevelt IN participated in study design and performed statistical analysis; Kerkhoffs GM participated in study design; Haverkamp D participated in design of the study drafted the manuscript and was involved with data collection; and all authors read and approved the final manuscript.
Institutional review board statement: This study was part of an earlier performed randomized controlled trial. This trial was approved by the local medical ethical committee and was registered at the CCMO Dutch Trial Register: NL55669.048.15.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All authors declare that there is no conflict of interest.
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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Niels H Bech, MD, Doctor, Department of Orthopedic Surgery, Amsterdam University Medical Center, Meibergdreef 9, Amsterdam 1105 AZ, Netherlands. niels.bech@gmail.com
Received: August 10, 2021
Peer-review started: August 10, 2021
First decision: November 17, 2021
Revised: December 2, 2021
Accepted: March 7, 2022
Article in press: March 7, 2022
Published online: April 18, 2022
Processing time: 244 Days and 17.5 Hours
ARTICLE HIGHLIGHTS
Research background

Capsular management after hip arthroscopy remains topic of debate after an interportal capsulotomy

Research motivation

More studies are needed to determine what the effect is of capsular repair on capsular healing after hip arthroscopy.

Research objectives

To determine whether capsular repair or not may result in a capsular defect measured on an MRI scan. Secondary objective is to determine of the presence of a capsular defect might influence the clinical outcome after hip arthroscopy.

Research methods

A random sample of patients were enrolled in this case series. All were operated and had a magnetic resonance imaging (MRI) scan in the postoperative phase. Patients were part of an earlier performed randomized trial and were randomized into a capsular repair or unrepaired capsulotomy group. Outcome was the presence of a capsular defect on MRI and the Copenhagen Hip and Groin Outcome Score (HAGOS).

Research results

A total of 29 hips were included. There was no significant different number of capsular defects between the capsular repair or unrepaired capsulotomy groups. There was also no difference in outcome measured with HAGOS outcome score between the capsular defect or capsule intact group.

Research conclusions

There was no difference in the number of capsular defects between the capsular repair or unrepaired capsulotomy group.

Research perspectives

Future larger studies are needed to confirm that capsular repair or unrepaired capsulotomy has no influence on the presence of a capsular defect or not. In addition; long term analysis needs to be done to determine whether the presence of a capsular defect might result in long term complications or influence outcome.