Clinical Application of the Apex of the Deep Cartilage in Evaluating the Femoral Tunnel of the ACL Reconstruction

Clinical Application of the Apex of the Deep Cartilage in Evaluating the Position of the Femoral Tunnel of the Anterior Cruciate Ligament Reconstruction

With the apex of the deep cartilage (ADC) as the symbol, the consistency of the two methods in the postoperatively computed tomography (CT) and microscopic evaluation of the position of the femoral tract of the anterior cruciate ligament (ACL) was studied.Expected results:P1 and P2, D1 and D2 were positively correlated, and the linear relationship was significant. Bland-Altman diagram shows a good consistency.

Study Overview

• Status: Recruiting
• Conditions: Anterior Cruciate Ligament Injuries
• Intervention / Treatment: Other: No Intervention

Detailed Description

Objectives:

With the apex of the deep cartilage (ADC) as the symbol, the consistency of the two methods in the postoperatively computed tomography (CT) and microscopic evaluation of the position of the femoral tract of the anterior cruciate ligament (ACL) was studied.

Methods:

Prospective cohort study.

Fifty-two patients requiring arthroscopic anterior cruciate ligament reconstruction were enrolled in the Sports Medicine Department of Peking University Third Hospital.

Collect patients' basic information and preoperative conditions. During the operation, the patient's knee was bent 90°, and the center point was positioned according to the intact femoral stump. The horizontal distance from the ADC to the anterior bone margin (L1) and the horizontal distance from the center point of the bone tract (L1) were measured by the master, the first aid and the second aid, and the distance from the center point of the bone tract to the lower bone margin (D1) was measured, and the ratio of L1 /L1 was calculated (P1).

The horizontal distance from the ADC to the anterior bone margin (L2) and the horizontal distance from the center of the bone tract (L2) were measured by three investigators on postoperative CT films, and the distance from the center of the bone tract to the lower bone margin (D2) was also measured, and the ratio of L2 /L2 was calculated (P2).

Linear regression, Pearson correlation and Bland-Altman analysis were used to compare the consistency between the endoscopic assessment and CT assessment.

Expected results:

P1 and P2, D1 and D2 were positively correlated, and the linear relationship was significant. Bland-Altman diagram shows a good consistency.

• Study Type: Observational
• Enrollment (Anticipated): 52

Contacts and Locations

• Study Contact: Name: Weili Shi, Doctor; Phone Number: 18046529457; Email: shiweilixmu@126.com

Study Locations

• China
  • Beijing, China, 100191
    • Recruiting
    • Peking University Third Hospital
    • Contact: Yong Ma, Doctor; Phone Number: 13581945087; Email: huidong01@sina.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Inclusion Criteria: Patients who have isolated ACL injury and receive ACL reconstruction surgery at Peking University Third Hospital.

Description

Inclusion Criteria:

• Patients who have isolated ACL injury and receive ACL reconstruction surgery at Peking University Third Hospital.
• With isolated ACL injury (an ACL injury with no need for surgical repairs to other knee structures).
• All participants have no known disorders or diseases other than ACL rupture.

Exclusion Criteria:

• Other injuries affecting movement performance.

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
ACL group; According to the previous clinical diagnosis, volunteers who has suffered the ACL injury.	Other: No Intervention; This is an observation study, with no intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The horizontal distance from the ADC to the anterior bone margin	The patients were measured microscopically at the time of surgery and again on CT after surgery.	On the 1 day of enrollment.
the horizontal distance from the center point of the bone tract	The patients were measured microscopically at the time of surgery and again on CT	On the 1 day of enrollment.
the distance from the center point of the bone tract to the lower bone margin	The patients were measured microscopically at the time of surgery and again on CT	On the 1 day of enrollment.

Collaborators and Investigators

• Sponsor: Peking University Third Hospital
• Investigators: Study Chair: Yong Ma, Doctor, Peking University Third Hospital

Study record dates

Study Major Dates

• Study Start (Actual): June 1, 2021
• Primary Completion (Anticipated): July 30, 2021
• Study Completion (Anticipated): July 30, 2021

Study Registration Dates

• First Submitted: June 29, 2021
• First Submitted That Met QC Criteria: July 7, 2021
• First Posted (Actual): July 8, 2021

Study Record Updates

• Last Update Posted (Actual): July 8, 2021
• Last Update Submitted That Met QC Criteria: July 7, 2021
• Last Verified: June 1, 2021

More Information

Terms related to this study

• Keywords: computed tomography; anterior cruciate ligament; the apex of the deep cartilage; microscopic evaluation
• Additional Relevant MeSH Terms: Wounds and Injuries; Leg Injuries; Knee Injuries; Anterior Cruciate Ligament Injuries
• Other Study ID Numbers: M2021212

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No