The Influence of Anatomic Deformities on the Clinical Efficacy in the Patients With Patellar Dislocation

NCT05243134 | Unknown

• 1 other identifier: IRB00006761-M2021423
• Study Type: observational
• Target: 1,000
• Locations: 1 country
• Sites: 1

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.

Conditions

Patellar Dislocation; Anatomic Abnormality; Trochlear Dysplasia; Femoral Anteversion; Treatment; Sport Injury

Keywords

Patellar dislocation; Anatomic deformity; trochlear dysplasia; treatment

Outcome Measures

Primary Outcomes (3)

• Number of participants with redislocation of their patella after surgery as confirmed by clinical physical examination

  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.

  Three years after surgery

• International Knee Documentation Committee(IKDC) score

  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.

  Three years after surgery

• Magnatic Resonance Imaging evaluation

  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).

  Three years after surgery

Secondary Outcomes (1)

• Skeletal force line and various angles by X-ray evaluation

  Preoperative

Study Arms (2)

Study Group

Patients with at least one type of anatomic deformity

Other: Collect the clinical data

Control group

Patients without anatomic deformity

Other: Collect the clinical data

Interventions

Collect the clinical data OTHER

We analyze the influence of the anatomic deformity on the clinical efficacy at the follow-up.

Control group; Study Group

Eligibility Criteria

• Age: 14 Years - 40 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Patients with patellar dislocation

You may qualify if:

• Patients with patellar dislocation.

You may not qualify if:

• 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.

Sponsors & Collaborators

• Peking University Third Hospital: lead

Study Sites (1)

Institute of Sports Medicine, Peking University Third Hospital

Beijing, Beijing Municipality, 100191, China

RECRUITING

Related Publications (1)

• Xu Z, Song Y, Deng R, Ye J, Wang X, Wang H, Yu JK. CT and MRI measurements of tibial tubercle lateralization in patients with patellar dislocation were not equivalent but could be interchangeable. Knee Surg Sports Traumatol Arthrosc. 2023 Jan;31(1):349-357. doi: 10.1007/s00167-022-07119-8. Epub 2022 Sep 11.

  PMID: 36088618 DERIVED

MeSH Terms

Conditions

Patellar Dislocation; Congenital Abnormalities

Condition Hierarchy (Ancestors)

Joint Dislocations; Joint Diseases; Musculoskeletal Diseases; Wounds and Injuries; Knee Injuries; Leg Injuries; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

• Lin Lin

  Peking University Third Hospital

  STUDY DIRECTOR

Central Study Contacts

Jia_kuo Yu

CONTACT

01082267392; yujiakuo@126.com

Lin Lin

CONTACT

01082267392

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Target Duration: 5 Years
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 23, 2021
• First Posted: February 16, 2022
• Study Start: September 30, 2021
• Primary Completion: December 30, 2025
• Study Completion: December 30, 2025
• Last Updated: February 16, 2022

Record last verified: 2021-09

Locations

CN (1)