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RecruitingNCT06030791Updated Sep 11, 2023

BTB Graft Harvest and Donor Site Morbidity After ACL Reconstruction

An observational study in Anterior Cruciate Ligament Rupture and Donor Site Complication, sponsored by Clinical Center of Vojvodina. Recruiting at 1 site in Serbia. Open to participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2023-09-11.

Sponsored by Clinical Center of Vojvodina · Observational

From the registry’s dates

  • Primary completion was expected by Oct 2024, 2 years ago, but the record still lists the study as recruiting.
  • Started Oct 2022; still recruiting 4 years later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
60
Ages
18 Years to 45 Years
Sex
All
01

Study summary

The aim of this observational study is to examine the connection between bone-tendinous defects after BTB graft harvest and the development of anterior knee pain.

Read the detailed description

The purpose of this study is to investigate the impact of bone-tendinous defects after ACL reconstruction on the development of anterior knee pain. We will assess the presence and extent of bone-tendinous defects using MRI scans, which will be conducted at two time points: 4 weeks and 1 year after ACL reconstruction surgery. Furthermore, we will compare the healing progress of the bone-tendinous defects observed on the MRI scans.

In addition, we will evaluate the correlation between the residual bone-tendinous defect and knee functionality by comparing the results with knee functional test (IKDC form, Lysholm score, Donor site morbidity score).

All individuals participating in the study have provided their informed consent by signing the necessary documents prior to their inclusion in the research.

02

Conditions studied

  • Anterior Cruciate Ligament Rupture
  • Donor Site Complication

Keywords

  • Anterior Cruciate Ligament Rupture
  • Autografts
  • Athletic Injuries
  • Magnetic Resonance Imaging
03

In context

Anterior Cruciate Ligament Injuries

625 studies on the registry are indexed under Anterior Cruciate Ligament Injuries; 192 are open to participants now.

This study's planned enrollment of 60 is below the median of 98 across 153 observational studies indexed under Anterior Cruciate Ligament Injuries.

Browse Anterior Cruciate Ligament Injuries studies →

Lead sponsor

Clinical Center of Vojvodina is the lead sponsor of 8 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

The study population will consist of individuals who have undergone ACL reconstruction surgery due to ligament injury. Participants will be recruited from the orthopedic clinic at University Clinical Center of Vojvodina. The inclusion criteria for this study are individuals aged 18 to 45 years old. Participants' medical records, including preoperative evaluations and surgical reports, will be reviewed to confirm eligibility and collect relevant baseline data.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Hospitalized patients
  • Diagnosed with ACL rupture based on medical history and clinical examination
  • Confirmed ACL rupture on MRI scans
  • A sufficient level of education to understand study procedures and be able to communicate with site personnel

Exclusion criteria

Exclusion Criteria:

  • Multiligament knee injuries
  • Both knees injuries
  • ACL re-rupture
  • Postoperative complications in the form of infection
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
60 participants (estimated)
Patient registry
No

Groups and cohorts

  • Group 1

    All examinees will undergo ACL reconstruction using BTB graft. MRI scans of operated knee will be conducted at two time points: 4 weeks and 1 year after ACL reconstruction surgery.

    Diagnostic Test: MRI

  • Group 2

    All examinees will undergo ACL reconstruction using BTB graft. MRI scans of operated knee will be conducted at two time points: 4 weeks and 1 year after ACL reconstruction surgery.

    Diagnostic Test: MRI

Interventions

  • Diagnostic testMRI

    MRI of operated knee

06

What researchers measure

Primary outcomes

  1. Healing of bone-tendinous defect

    The healing progress will be assessed through MRI scans conducted at two time points: 4 weeks and 1 year after the surgical intervention. The measurement of bone-tendinous defect healing will be expressed both in cubic millimeters and as a percentage. The cubic millimeter measurement will quantify the size of the defect observed on the MRI scans. This measurement provides a precise assessment of the volume of the defect, allowing for accurate tracking of the healing process over time. In addition, the healing progress will also be expressed as a percentage, comparing the size of the defect at each time point relative to the initial defect size observed at the 4-week scan. This percentage calculation will offer a relative measure of the extent to which the bone-tendinous defect has healed or progressed over the course of the study.

    Time frame: 4 weeks postoperatively and 12 months postoperatively

  2. Change of IKDC score

    The International Knee Documentation Committee (IKDC) form is a validated patient-reported outcome measure used to assess knee function and symptoms. It is a self-administered questionnaire that helps evaluate the subjective knee-related outcomes and overall knee function of individuals. The IKDC form covers various aspects, including symptoms, daily activities, sports and recreational activities, and knee-related quality of life. It consists of items that assess pain, stability, swelling, locking, giving way, range of motion, and the ability to perform specific tasks. Possible IKDC form score range from 0 to 100 and scores are divided into categories and interpreted based on cutoff values. Scores above 90 or 95 may be considered excellent or near-normal, scores between 80 and 89 may be considered good or satisfactory, scores between 70 and 79 may be considered fair or moderate, and scores below 70 may be considered poor or unsatisfactory.

    Time frame: preoperatively and 12 months postoperatively

  3. Change of Lysholm score

    The Lysholm Knee Scoring Scale, often simply referred to as the Lysholm Score, is a patient-reported outcome measure used to evaluate the symptoms and functional limitations in individuals with knee injuries, especially those related to anterior cruciate ligament (ACL) damage. The Lysholm Score is commonly utilized in clinical practice and research to monitor the outcomes of knee surgeries or interventions. Categories Evaluated by Lysholm Knee Scoring Scale are: limping, using support, pain, locking, swelling, stair climbing, squatting and instability. The total score can range from 0 (severe symptoms and limitations) to 100 (no symptoms or limitations), with scores interpreted as Excellent, Good, Fair, or Poor based on the range they fall into.

    Time frame: preoperatively and 12 months postoperatively

  4. Donor site morbidity score

    Donor site morbidity score is a new 10-question patient-oriented instrument that was developed to adequately assess morbidity at the site of BTB harvest. The intent was to measure subjective outcomes, including donor site pain, numbness, function, strength, and physical appearance at the surgical site. All questions had 4 possible answers, each representing increasing symptom severity and patient dissatisfaction. Answer choices were assigned 0 to 10 points depending on the severity or functional restriction. A perfect score of 100 represented no complaints whatsoever. Total scores were subdivided into 4 categories representing overall morbidity after surgery: excellent (≥93.3 points), good (80.0-93.2 points), fair (50.0-79.9 points), and poor (≤49.9 points).

    Time frame: 12 months postoperatively

07

Study locations

1 of 1 sites recruiting
  • University Clinical Center of Vojvodina
    Novi Sad, 21000, Serbia
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2022 (actual). Primary completion is estimated for Oct 2024, 24 months after the start.

Of 73 non-industry observational studies under Anterior Cruciate Ligament Injuries, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 167. This study's planned 24 months is below that.

Counting every sponsor, half of 82 studies reached it within 37 months; a quarter within 13 and three quarters within 76.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 3, 2023
First posted
Sep 11, 2023
StartActual
Oct 31, 2022
Primary completionEst.
Oct 31, 2024
CompletionEst.
Oct 31, 2024
Last update
Sep 11, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 11, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06030791
Lead sponsor
Clinical Center of Vojvodina
Responsible party
Mirko Obradovic (MD, Clinical Center of Vojvodina) — Principal investigator
First posted
Sep 11, 2023
Start date
Oct 31, 2022
Primary completion
Oct 31, 2024 (estimated)
Completion
Oct 31, 2024 (estimated)
Last update
Sep 11, 2023

Study contacts

Mirko Obradovic, MD
Contact
mirko127@gmail.com
+381643653086
Milan Milinkov, MD
Contact
milinkovmilan@gmail.com
+381629784768

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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