Results of a trochlear osteotomy for patellar instability in patients with trochlear dysplasia: a 12 year follow-up

Withdrawn

• Conditions: Patellar instability; unstable kneecap; 10023213; 10005944

• Registration Number: NL-OMON40795
• Lead Sponsor: niversitair Medisch Centrum Sint Radboud

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 23 April 2024

Recruitment & Eligibility

• Status: Withdrawn
• Sex: Not specified
• Target Recruitment: 16

Inclusion Criteria

The inclusion period already ended. All included patients were operated between June 1995 and October 2002 by an anterior lateral femoral osteotomy (trochlear osteotomy) because of trochlear dysplasia. No other procedures were performed simultaneously on the knee. This research is a follow-up after 12 years. All patients which have been operated upon will be contacted.

Exclusion Criteria

Failure of meeting the inclusion criteria.

Study & Design

• Study Type: Observational invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The following outcome parameters will be determined<br /><br><br /><br>- Function:Lysholm score (patient based)<br /><br><br /><br>- Function: Kujala score (patient based)<br /><br><br /><br>- Dutch Womac score (patient-based)<br /><br><br /><br>- Pain knee: VAS-pain<br /><br><br /><br>- Number of recurrent dislocations<br /><br><br /><br>- Number of postoperative complications<br /><br><br /><br>- Patellofemoral osteoarthritis according to the Iwano classification (Iwano et<br /><br>al, Clin Orthop Relat Res. 1990 Mar;(252):190-7)<br /><br><br /><br>- Tibiofemoral osteoarthritis according to the Kellgren classification<br /><br>(Kellgren and Lawrence, Ann Rheum Dis. 1957 Dec;16(4):494-502)</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>not applicable</p><br>