Retrospective Study
Copyright ©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Aug 18, 2016; 7(8): 487-493
Published online Aug 18, 2016. doi: 10.5312/wjo.v7.i8.487
Femoro Patella Vialla patellofemoral arthroplasty: An independent assessment of outcomes at minimum 2-year follow-up
Mansur Halai, Andrew Ker, Iain Anthony, Graeme Holt, Bryn Jones, Mark Blyth
Mansur Halai, Andrew Ker, Iain Anthony, Bryn Jones, Mark Blyth, Department of Trauma and Orthopaedics, Glasgow Royal Infirmary, Glasgow G4 0SF, United Kingdom
Graeme Holt, Department of Trauma and Orthopaedics, University Hospital Crosshouse, Kilmarnock KA2 0BE, United Kingdom
Author contributions: Halai M conducted the study with the help of Ker A; Anthony I and Holt G performed the biostatistical analysis; Jones B and Blyth M conducted the study and supervised the entire project; all authors had read and approved the final version to be published.
Institutional review board statement: Not required. This study was performed as part our routine departmental audit process.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrolment.
Conflict-of-interest statement: All the authors have no conflicts of interest to declare.
Data sharing statement: We confirm that this article is original, is not under consideration by another journal and has not been previously published. We consent to World J Orthop using our data for sharing. Technical appendix, statistical code, and dataset available from the corresponding author at
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:
Correspondence to: Mansur Halai, Specialty Registrar, Department of Trauma and Orthopaedics, Glasgow Royal Infirmary, Gatehouse Building, 84 Castle Street, Glasgow G4 0SF, United Kingdom.
Telephone: +44-7790-508019
Received: February 27, 2016
Peer-review started: February 27, 2016
First decision: March 24, 2016
Revised: May 19, 2016
Accepted: June 1, 2016
Article in press: June 3, 2016
Published online: August 18, 2016

AIM: To determine outcomes using the Femoro-Patella Vialla (FPV) arthroplasty and if there is an ideal patient for this implant.

METHODS: A total of 41 FPV patellofemoral joint replacements were performed in 31 patients (22 females, 9 males, mean age 65 years). Mean follow-up was 3.2 years (minimum 2 years). Radiographs were reviewed preoperatively and postoperatively. We assessed whether gender, age, previous surgery, patella atla or trochlear dysplasia influenced patient satisfaction or patient functional outcome.

RESULTS: The median Oxford Knee Score was 40 and the median Melbourne Patellofemoral Score was 21 postoperatively. Seventy-six percent of patients were satisfied, 10% unsure and 14% dissatisfied postoperatively. There was no radiological progression of tibiofemoral joint arthritis, using the Ahlback grading, in any patient. One patient, who was diagnosed with rheumatoid arthritis postoperatively, underwent revision to total knee replacement. There were no intraoperative lateral releases and no implant failures. Gender, age, the presence of trochlear dysplasia, patella alta or bilateral surgery did not influence patient outcome. Previous surgery did not correlate with outcome.

CONCLUSION: In contrast to the current literature, the FPV shows promising early results. However, we cannot identify a subgroup of patients with superior outcomes.

Keywords: Patellofemoral, Arthritis, Femoro-Patella Vialla, Outcomes, Arthroplasty

Core tip: We demonstrate good outcomes regarding the Femoro-Patella Vialla implant which recently has had poor outcomes reported. As it is a popular implant, we think this article is important as there is a paucity of literature concerning outcomes from independent centres. In addition, we are the first group to use a patellofemoral score as one of the outcome measures. However, we cannot identify a subgroup of patients with superior outcomes.