Deepening trochleoplasty with a thick osteochondral flap for patellar instability: Clinical and functional outcomes at mean 6 year follow-up

McNamara, Iain, Bua, Nelson, Smith, Toby O. ORCID: https://orcid.org/0000-0003-1673-2954, Ali, Khameinei and Donell, Simon T. (2015) Deepening trochleoplasty with a thick osteochondral flap for patellar instability: Clinical and functional outcomes at mean 6 year follow-up. American Journal of Sports Medicine, 43 (11). pp. 2706-2713. ISSN 1552-3365

Preview

PDF (trochleoplasty Final revised) - Accepted Version Download (222kB) | Preview

Abstract

Background: In patients with patellar instability and severe trochlear dysplasia, trochleoplasty has become increasingly used as part of the surgical management. Hypothesis: Deepening trochleoplasty for severe dysplasia in patellofemoral instability improves function and increases sports participation. Study Design: Case series; Level of evidence, 4. Methods: Between 1995and 2010 the thick-flap deepening trochleoplasty was performed in 90 patients (107 knees) with severe trochlear dysplasia. Data was collected prospectively pre-operatively, at 6 weeks and 1-year follow-up. The patients were surveyed retrospectively to determine the clinical and functional outcomes including sports and exercise participation at a minimum of 2 years, with complete data available in 92%. Results: With a minimum follow-up of 2 years, average of 6 years (range 2 – 19 years). The Kujala score had a median and interquartile range (IQR) of 63 (47-75) pre-operatively rising to 79 (68-91) at 1 year follow-up and 84 (73-92) at final follow-up (p< 0.05). Seventy-two per cent were satisfied with their knee function at 1 year follow-up rising to 79% at final follow-up (p <0.0001). Sports and exercise participation increased from 36 patients (40%) pre-operatively to 60 (67%) at final follow-up. The numbers involved in competitions increased slightly from 10 (11%) to 11 (12%). Of those sports that involved twisting (e.g. soccer, cricket, badminton), the proportion of patients participation increased from 16 (18%) to 22 (24%), whereas in non-twisting sports (e.g. running, swimming, cycling) it increased from 24 (27%) to 47 (52%) of whom 14 (16%) used walking as exercise. Conclusion: The thick-flap deepening trochleoplasty improves the clinical and functional outcomes for patients with symptomatic patellar instability with severe trochlear dysplasia. These results improve over time and beyond the 1 year clinical follow-up. However trochleoplasty does not lead to a significant improvement in sports participation at a competitive level. It does improve the sports and exercise patient participation, principally in non-twisting sports activities.

Item Type:	Article
Uncontrolled Keywords:	patellar dislocation,trochleoplasty,mid-term,clinical outcome,sports
Faculty \ School:	Faculty of Medicine and Health Sciences > Norwich Medical School Faculty of Medicine and Health Sciences > School of Health Sciences
UEA Research Groups:	Faculty of Medicine and Health Sciences > Research Groups > Rehabilitation Faculty of Medicine and Health Sciences > Research Groups > Health Promotion Faculty of Science > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Centres > Population Health
Depositing User:	Pure Connector
Date Deposited:	17 Mar 2016 13:15
Last Modified:	19 Oct 2023 01:27
URI:	https://ueaeprints.uea.ac.uk/id/eprint/57546
DOI:	10.1177/0363546515597679

Downloads

Actions (login required)

View Item