Peng YW, Shen JM, Zhang YC, Sun JY, Du YQ, Zhou YG. Jumbo cup in hip joint renovation may cause the center of rotation to increase. World J Clin Cases 2021; 9(22): 6300-6307 [PMID: 34434996 DOI: 10.12998/wjcc.v9.i22.6300]
Corresponding Author of This Article
Yong-Gang Zhou, MD, PhD, Doctor, Department of Orthopedics, The First Medical Centre, Chinese People’s Liberation Army General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China. ygzhou301@163.com
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/
Ya-Wen Peng, Jun-Min Shen, Yan-Chao Zhang, Jing-Yang Sun, Yin-Qiao Du, Yong-Gang Zhou, Department of Orthopedics, The First Medical Centre, Chinese People’s Liberation Army General Hospital, Beijing 100853, China
Author contributions: Peng YW and Shen JM design the experiment; Zhang YC drafted the work, Sun JY, Du YQ and Zhou YG collected the data; Peng YW and Shen JM analyzed and interpreted data, Peng YW, Shen JM and Zhang YC wrote the article.
Institutional review board statement: The study was reviewed and approved by the Chinese People’s Liberation Army General Hospital Institutional Review Board.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: The 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: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Yong-Gang Zhou, MD, PhD, Doctor, Department of Orthopedics, The First Medical Centre, Chinese People’s Liberation Army General Hospital, No. 28 Fuxing Road, Haidian District, Beijing 100853, China. ygzhou301@163.com
Received: May 15, 2021 Peer-review started: May 15, 2021 First decision: May 23, 2021 Revised: May 24, 2021 Accepted: May 27, 2021 Article in press: May 27, 2021 Published online: August 6, 2021
ARTICLE HIGHLIGHTS
Research background
Utilizing the large jumbo cup in revision total hip arthroplasty (THA) is an effective approach to cure many lacunar and segmental peripheral bone defects. However, with the use of the jumbo cup, the center of the hip joint may become elevated relative to the primary acetabulum, and the diameter of the large cup is greater.
Research motivation
In order to explore the height and significance of X-rays used to study the height of the hip joint center, as a guide for clinical work.
Research objectives
X-rays were applied to study the height and the significance of the elevation of the hip joint center.
Research methods
Eighty-eight patients were included in the study. The center height of the hip joint was measured relative to the opposite normal hip joint. The diameter of the jumbo cup was measured and checked according to operation notes, and the diameter of the jumbo cup was measured with a prosthesis label.
Research results
Radiometric analysis showed that the average hip joint center was elevated by 7.6 mm. The rotational center height delta of the renovated hip was 7.6 ± 5.6 mm, and there was an obvious difference between the two groups. For the difference in horizontal distance, there was no obvious difference between the two groups. The rotational center height delta of the renovated hip was 7.5 ± 6.2 mm, and there was a significant difference between the two groups.
Research conclusions
The application of the jumbo cup elevates the rotational center of the hip joint, but it is feasible and effective to use the jumbo cup.
Research perspectives
Applying a jumbo cup in revision THA increases the height of the rotational center of the hip joint, but it is feasible and effective to utilize jumbo cups in revision THA with a limited height.
