NCT06233305

Brief Summary

Background: The anterior cruciate ligament(ACL) , one of the major ligaments in the knee joint which connects the posterior aspect of the lateral femoral condyle to the anterior intercondylar area of the tibia. It plays a crucial role in maintaining knee joint stability, preventing excessive rotation of the tibia, and controlling the angles of knee valgus and varus. Additionally, the ACL contains mechanoreceptors that contribute to proprioception input. Acute ACL injuries are characterized by joint effusion, instability, and reduced range of motion. In the chronic phase, instability and pain may occur during rotational and cutting movements. Currently, regenerative injection therapies such as high-concentration platelet-rich plasma (PRP)and bone marrow concentrate (BMC) are being explored for ACL repair. Studies have found that postoperative administration of high-concentration PRP significantly reduces pain and improves knee joint function for a duration of 3 to 6 months, but these effects are not sustained beyond 12 months. In addition, some research indicates that high-concentration PRP does not enhance graft healing or improve knee joint stability. Method: This is a single-institution, single-blind, observational study conducted by the rehabilitation department of a public hospital. The study aims to recruit 40 participants with anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL) injuries. The treatment intervention is collaboratively determined by the physician and the participant during the clinic visit. Subsequently, a therapist, unaware of the treatment details, conducts baseline assessments, including basic information collection, balance testing, gait analysis, timed up and go test, muscle strength evaluation, and subjective knee assessment questionnaire. Additionally, a physician, blinded to the treatment content, employs ultrasound to assess ligament elasticity. Follow-up assessments are conducted for the same parameters two months later.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 3, 2024

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

January 22, 2024

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 31, 2024

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 27, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 27, 2025

Completed
Last Updated

March 5, 2024

Status Verified

March 1, 2024

Enrollment Period

12 months

First QC Date

January 22, 2024

Last Update Submit

March 3, 2024

Conditions

Keywords

PRPTherapeutic exerciseModality physical therapy

Outcome Measures

Primary Outcomes (6)

  • Balance Sensing Test

    Subjects were instructed to wear knee protectors(KNEESUP Care ) equipped with 3D gyroscopes which made from Conzion and subjects were asked to perform three trials of open-eye single-leg standing and three trials of closed-eye single-leg standing. The dynamic sensing system software recorded the time spent in single-leg standing and analyzed parameters such as balance area, anterior-posterior and medial-lateral displacement of the knee joint, and differences between the two feet.

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

  • Gait Analysis

    Subjects were instructed to wear knee protectors(KNEESUP Care ) equipped with 3D gyroscopes which made from Conzion. Gait analysis involves having the subjects walk back and forth for six meters while wearing the device, with the software analyzing differences in the gait of both feet.

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

  • Time up and go test

    Subjects were instructed to wear knee protectors(KNEESUP Care ) equipped with 3D gyroscopes which made from Conzion. The patient stand up from the chair, walking three meters forward, turn around, and return to the chair to sit down.The KNEESUP will calculate the total time needed

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

  • Muscle Strength Test

    Quantify muscle strength of knee extensors and knee flexors using a hand-held dynamometer(ISOFROCE GT-300) which made from OG WELLNESS

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

  • International Knee Documentation Committee

    A total of 18 items were assessed, covering aspects such as symptoms, physical activity, and functionality. Each item was scored on a sequential scale, with higher scores indicating lower symptoms and higher functionality. The sum of all scores was calculated and then converted into a scale ranging from 0 to 100.

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

  • Ligament elasticity

    Utilizing shear wave elastography, elastic images are generated by inducing shear waves within the tissue using acoustic pressure waves. The propagation speed of these waves is directly proportional to the square root of the tissue's elastic modulus. The elasticity coefficient of the anterior cruciate ligament is measured in patients at various degrees of knee flexion.

    Pre-treatment assessment, approximately one month later perform a mid-term assessment, and two months later, conduct a post-treatment assessment.

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study subjects were sampled from the Rehabilitation Department of the Taipei Hospital, Ministry of Health and Welfare, with an anticipated enrollment of 40 individuals with anterior cruciate ligament (ACL) knee injuries

You may qualify if:

  • Age between 18 to 80 years old.
  • Magnetic Resonance Imaging (MRI) shows partial tearing of the anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL), possibly combined with injuries to the medial collateral ligament (MCL) or meniscus.
  • No surgical treatment has been undergone.

You may not qualify if:

  • Had knee joint diseases or undergone knee joint surgery before the injury.
  • Surgical intervention is required for severe damage to knee joint ligaments, meniscus, or articular tissues, such as complete rupture of lateral ligaments or full-thickness cartilage injuries.
  • Suffers from diseases affecting physical activity function, such as stroke or nerve damage.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Hospital, Ministry of Health and Welfare

New Taipei City, 24213, Taiwan

RECRUITING

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Condition Hierarchy (Ancestors)

Knee InjuriesLeg InjuriesWounds and Injuries

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 22, 2024

First Posted

January 31, 2024

Study Start

January 3, 2024

Primary Completion

December 27, 2024

Study Completion

March 27, 2025

Last Updated

March 5, 2024

Record last verified: 2024-03

Data Sharing

IPD Sharing
Will not share

Locations