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10-year Follow-up After Tibial Tubercle Transposition — TTTfollow-up  

Anterior Knee Pain Syndrome Clinical Trial

Official title:
Long-term Outcomes and Development of Retropatellar Chondropathy After Tibial Tubercle Distomedialisation for Patellar Maltracking and Patella Alta Without Instability: 10 Year Follow-up of a Prospective Cohort

Clinical Trial Summary

Patellofemoral pain is a common complaint especially in young adults. It can be caused by patellar maltracking. Part of this is a patella alta. When patellar maltracking is the cause of the problem and conservative therapy fails, surgery, a tibial tuberosity transposition, may be considered. Most research has been done in patients with recurrent patella luxation. However, in patients without luxation, research is scarce. It is known that patients with patella alta have an increased risk of developing patellofemoral chondropathy due to increased pressure. With this study, we aim to investigate whether and how a tibial tuberosity transposition in patients with patella alta and no instability affects the degree of patellofemoral chondropathy and patient satisfaction after 10 years. This will allow us to educate patients regarding long-term outcomes better.

Clinical Trial Description

Anterior knee pain is a common complaint, especially in younger and active adults. An obvious source for anterior knee pain is patellar maltracking, which is often associated with patella alta (a high-riding patella). Due to maltracking, the cartilage of the patella can face a greater amount of pressure, which can cause cartilage damage. When conservative treatment fails, a surgical intervention can be considered. One of the surgical options is performing a tibial tubercle transfer (TTT), where the patella is being distalized and medialized. As a result, the improvement in patellar tracking will reduce the pressure on the retropatellar cartilage. The TTT has been proven effective in patients with patellar instability but less is known about patients without instability. Specifically, whether these patients face a higher risk of developing retropatellar cartilage damage ('retropatellar chondropathy') due to this intervention is currently unknown. The primary aim of this study is to determine the incidence and the degree of retropatellar chondropathy 10 years after a TTT in patients with anterior knee pain without patellar instability. The secondary aim is to evaluate the long-term patient reported outcomes (PROMs) 10 years after a TTT in patients with anterior knee pain without patellar instability. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05629754
Study type Observational
Source Centre for Orthopaedic Research Alkmaar
Contact
Status Enrolling by invitation
Phase
Start date November 18, 2023
Completion date December 2024
View Details
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