The Influence of Anatomic Deformities on the Clinical Efficacy in the Patients With Patellar Dislocation
Trial Snapshot
- Phase
- Not Applicable
- Status
- Recruiting
- Enrollment
- 1,000
- Locations
- 1
- Primary Endpoint
- International Knee Documentation Committee(IKDC) score
Study Overview
Brief Summary
All the data of patients with patellar dislocation will be collected to evaluate the anatomic deformities. The data includes X-ray, CT, MRI examinations, medical records, and physical examination information. Finally, we correlate the anatomic deformities with clinical efficacy. To search for the risk factors that lead to patellar dislocation and influence the therapeutic effect.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 14 Years to 40 Years (Child, Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Patients with patellar dislocation.
Exclusion Criteria
- •Patients with significant ligamentous knee injury.
- •Previous fracture or surgery of the lower limb.
- •Patellar dislocation caused by car accidents or other high-energy force directly on the patella.
Outcomes
Primary Outcomes
International Knee Documentation Committee(IKDC) score
Time Frame: Three years after surgery
The entire IKDC form, which includes a demographic form, current health assessment form, subjective knee evaluation form, knee history form, surgical documentation form, and knee examination form, may be used as separate forms. The knee history form and surgical documentation form are provided for convenience. All researchers are required to complete the subjective knee evaluation and knee examination form. Instructions for scoring the subjective knee evaluation form and the knee examination form are provided on the back of the forms. Total score 100, ≥75 being considered excellent.
Number of participants with redislocation of their patella after surgery as confirmed by clinical physical examination
Time Frame: Three years after surgery
We can determine patellar redislocation by physical examination. In participants with redislocation of their patella, the patella (kneecap) slips out of its normal position. Often the knee is partly bent, painful and swollen.The patella is also often felt and seen out of place. We recored the number of participants with redislocation of their patella after surgery.
Magnatic Resonance Imaging evaluation
Time Frame: Three years after surgery
All patients undergoing anterior cruciate ligament reconstruction underwent MRI imaging evaluation of both knees. Use International Cartilage Repair Society(ICRS) score to evaluate, total score is 12, classified into four grades,grade Ⅰ: normal (12), grade Ⅱ: nearly normal (8-11), grade Ⅲ: abnormal (4-7), grade Ⅳ: severely abnormal (1-3).
Secondary Outcomes
- Skeletal force line and various angles by X-ray evaluation(Preoperative)