Copyright
©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Jul 18, 2016; 7(7): 426-433
Published online Jul 18, 2016. doi: 10.5312/wjo.v7.i7.426
Published online Jul 18, 2016. doi: 10.5312/wjo.v7.i7.426
Computerized tomography based “patient specific blocks” improve postoperative mechanical alignment in primary total knee arthroplasty
Raju Vaishya, Vipul Vijay, Vikas P Birla, Amit K Agarwal, Department of Orthopaedics, Joint Replacement and Arthroscopy, Indraprastha Apollo Hospital, New Delhi 110076, India
Author contributions: Vaishya R helped in performing the surgery and designing the research; Vijay V helped in data collection and preparation of the manuscript; Birla VP helped in data collection and statistics; Agarwal AK helped in preparation of manuscript.
Institutional review board statement: The study was approved by the IRB of the institution.
Informed consent statement: All the patients included in the study gave an informed consent for inclusion in the study.
Conflict-of-interest statement: No conflicts of interest to declare.
Data sharing statement: The authors are willing to share the data of the present study.
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: Dr. Vipul Vijay, Department of Orthopaedics, Joint Replacement and Arthroscopy, Indraprastha Apollo Hospital, Sarita Vihar, New Delhi 110076, India. dr_vipulvijay@yahoo.com
Telephone: +91-11-29871210
Received: January 11, 2016
Peer-review started: January 14, 2016
First decision: February 29, 2016
Revised: March 14, 2016
Accepted: May 7, 2016
Article in press: May 9, 2016
Published online: July 18, 2016
Peer-review started: January 14, 2016
First decision: February 29, 2016
Revised: March 14, 2016
Accepted: May 7, 2016
Article in press: May 9, 2016
Published online: July 18, 2016
Core Tip
Core tip: Computer tomography (CT) based patient specific blocks (PSB) can help restore the mechanical axis of the patients undergoing primary total knee replacement. In the present study, the PSB group had significantly better post-operative mechanical axis as compared to the conventional instrumentation group. CT based PSB holds promise to help in accurate restoration of the mechanical axis and might decrease the rates of revision after total knee arthroplasty.