The Unstable Kneecap - the Impact of Anatomy on Function (SPRING)
Patellar Dislocation
About this trial
This is an interventional diagnostic trial for Patellar Dislocation
Eligibility Criteria
Inclusion Criteria:
Patient subjects will be considered eligible for the study group if they have had two or more episodes of patellar dislocation or multiple episodes of subluxation with at least one of the following:
- Positive patellar apprehension test
- Tenderness along the medial retinaculum
- Abnormal patellar tracking or position
- Control participants should be healthy subjects with no history of knee injury or surgery
- All participants will need to have the capacity to give informed consent in English
- All participants must be able to use public transport or drive
Exclusion Criteria:
- Pregnancy
- Breast feeding
- Arthritis
- Participation in other studies
Sites / Locations
- St George's HospitalRecruiting
- Imperial College LondonRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Other
study group
control group
36 participants recruited aged between 18 to 50 years of age Participants will be considered eligible for the study group if they have had two or more episodes of patellar dislocation or multiple episodes of subluxation with at least one of the following: i. Positive patellar apprehension test ii. Tenderness along the medial retinaculum iii. Abnormal patellar tracking or position. The study group will undergo gait analysis and electromyography before surgery and 6 months after surgery. During surgery the study group will undergo intra-operative tracking and pressure measurements.
36 participants recruited aged between 18 to 50 years of age, matched for age and gender with the study group. Control participants should be healthy subjects with no history of knee injury or surgery. The control group will undergo gait analysis and electromyography.