Functional Outcome Comparison of Implant-Free Bone-Patellar Tendon Autograft in Arthroscopic ACL Reconstruction

October 9, 2019 updated by: Andri Maruli Tua Lubis, Indonesia University

Functional Outcome Comparison of Implant-Free Bone-Patellar Tendon Autografts Using Press-Fit Fixation Technique and Hamstring Autografts Using Implant in Arthroscopic Anterior Cruciate Ligament Reconstruction: A Prospective Study

The use of implants for conventional anterior cruciate ligament (ACL) graft fixation has been associated with several problems including graft injury, implant osteolysis, implant migration and soft tissue irritation. Implantless ACL surgery offers additional benefits involving lower cost, improved graft incorporation and ease of revision surgery. The investigators aimed to compare the functional outcome of implantless bone-patellar tendon autograft using press-fit fixation technique and hamstring autografts using implant.

Study Overview

Detailed Description

Purpose: The use of implants for conventional anterior cruciate ligament (ACL) graft fixation has been associated with several problems including graft injury, implant osteolysis, implant migration and soft tissue irritation. Implantless ACL surgery offers additional benefits involving lower cost, improved graft incorporation and ease of revision surgery. The investigators aimed to compare the functional outcome of implantless bone-patellar tendon autograft using press-fit fixation technique and hamstring autografts using implant.

Materials and Methods: A prospective cohort study design was used. Between March 2013 and March 2014, 12 patients underwent implantless ACL reconstruction using press-fit femoral technique, while 24 patients underwent implant ACL reconstruction. Objective functional outcome were measured using rolimeter, and subjective functional outcome were measured according to IKDC, Tegner-Lysholm and KOOS.

Study Type

Interventional

Enrollment (Actual)

32

Phase

  • Phase 2
  • Phase 1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • total rupture of ACL on a single knee

Exclusion Criteria:

  • increased knee laxity according to Beighton Hypermobility Score
  • previous history of knee surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: implantless Arthroscopic ACL reconstruction
implantless Arthroscopic ACL reconstruction using press-fit femoral technique
Implantless Arthroscopic ACL reconstruction using press-fit femoral technique The investigator's study uses the press-fit graft fixation technique by Edgar Michael. A midline skin incision was made that extends from inferior pole of patella up to anterior tibial tuberosity. Patella tendon with tibial tuberosity bone block were harvested, patella bone was left intact. The tendon was fixed together with non-absorbable suture.
Arthroscopic ACL reconstruction with implant (using hamstring autograft fixed with bioscrew and endo-button)
EXPERIMENTAL: Arthroscopic ACL reconstruction with implant
ACL reconstruction with implant (hamstring autograft fixed with bioscrew and endo-button)
Arthroscopic ACL reconstruction with implant (using hamstring autograft fixed with bioscrew and endo-button)
Arthroscopic ACL reconstruction with implant (using hamstring tendon autograft fixed with bioscrew and endo-button)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Anterior knee laxity
Time Frame: At 1 month after surgery.
Anterior knee laxity (in centimetres) was assessed by measuring anterior translation at 30° of flexion with a rolimeter and comparing it with the contralateral knee.
At 1 month after surgery.
Anterior knee laxity
Time Frame: At 3 months after surgery.
Anterior knee laxity (in centimetres) was assessed by measuring anterior translation at 30° of flexion with a rolimeter and comparing it with the contralateral knee.
At 3 months after surgery.
Anterior knee laxity
Time Frame: At 6 months after surgery.
Anterior knee laxity (in centimetres) was assessed by measuring anterior translation at 30° of flexion with a rolimeter and comparing it with the contralateral knee.
At 6 months after surgery.
Functional outcome score International Knee Documentation committee (IKDC)
Time Frame: At 1 month after surgery.

International Knee Documentation committee (IKDC) score evaluate improvement or deterioration in symptoms, function, and sports activities.

Number of items: 18 subscales:

  • symptoms: pain, stiffness, swelling, locking/catching and giving-way of the knee.
  • sports activities: functions such as going up and down the stairs, rising from a chair, squatting and jumping
  • function and activity of daily living: knee condition prior to injury

Response options vary for each item. Item 6 dichotomizes response into yes/no; items 1, 4, 5, 7, 8, and 9 use 5-point Likert scales; and items 2, 3, and 10 use 11-point numerical rating scales. The total score is calculated as (sum of items)/(maximum possible score) × 100. Possible score range 0-100, where 100 = no limitation with daily or sporting activities and the absence of symptoms. Higher values represent a better outcome.

At 1 month after surgery.
Functional outcome score International Knee Documentation committee (IKDC)
Time Frame: At 3 months after surgery.

International Knee Documentation committee (IKDC) score evaluate improvement or deterioration in symptoms, function, and sports activities.

Number of items: 18 subscales:

  • symptoms: pain, stiffness, swelling, locking/catching and giving-way of the knee.
  • sports activities: functions such as going up and down the stairs, rising from a chair, squatting and jumping
  • function and activity of daily living: knee condition prior to injury

Response options vary for each item. Item 6 dichotomizes response into yes/no; items 1, 4, 5, 7, 8, and 9 use 5-point Likert scales; and items 2, 3, and 10 use 11-point numerical rating scales. The total score is calculated as (sum of items)/(maximum possible score) × 100. Possible score range 0-100, where 100 = no limitation with daily or sporting activities and the absence of symptoms. Higher values represent a better outcome.

At 3 months after surgery.
Functional outcome score International Knee Documentation committee (IKDC)
Time Frame: At 6 months after surgery.

International Knee Documentation committee (IKDC) score evaluate improvement or deterioration in symptoms, function, and sports activities.

Number of items: 18 subscales:

  • symptoms: pain, stiffness, swelling, locking/catching and giving-way of the knee.
  • sports activities: functions such as going up and down the stairs, rising from a chair, squatting and jumping
  • function and activity of daily living: knee condition prior to injury

Response options vary for each item. Item 6 dichotomizes response into yes/no; items 1, 4, 5, 7, 8, and 9 use 5-point Likert scales; and items 2, 3, and 10 use 11-point numerical rating scales. The total score is calculated as (sum of items)/(maximum possible score) × 100. Possible score range 0-100, where 100 = no limitation with daily or sporting activities and the absence of symptoms. Higher values represent a better outcome.

At 6 months after surgery.
Functional outcome score Tegner-Lysholm
Time Frame: At 1 month after surgery.

Tegner-Lysholm Score subjectively evaluate to how the knee pain has affected the ability to manage in everyday life.

Number of items: 8 items, each scored differently

Subscales:

  1. limp (0, 3, 5)
  2. support (0, 2, 5)
  3. locking (0, 2, 6, 10, 15)
  4. instability (0, 5, 10, 15, 20, 25)
  5. pain (0, 5, 10, 15, 20, 25)
  6. swelling (0, 2, 6, 10)
  7. stair climbing (0, 2, 6, 10)
  8. squatting (0, 2, 4, 5)

Total score is given as "excellent" for 95 to 100 points; "good" for 84 to 94 points, "fair" for 65 to 83 points, or "poor" for less than 65 points.

At 1 month after surgery.
Functional outcome scores Tegner-Lysholm
Time Frame: At 3 months after surgery.

Tegner-Lysholm Score subjectively evaluate to how the knee pain has affected the ability to manage in everyday life.

Number of items: 8 items, each scored differently

Subscales:

  1. limp (0, 3, 5)
  2. support (0, 2, 5)
  3. locking (0, 2, 6, 10, 15)
  4. instability (0, 5, 10, 15, 20, 25)
  5. pain (0, 5, 10, 15, 20, 25)
  6. swelling (0, 2, 6, 10)
  7. stair climbing (0, 2, 6, 10)
  8. squatting (0, 2, 4, 5)

Total score is given as "excellent" for 95 to 100 points; "good" for 84 to 94 points, "fair" for 65 to 83 points, or "poor" for less than 65 points.

At 3 months after surgery.
Functional outcome scores Tegner-Lysholm
Time Frame: At 6 months after surgery.

Tegner-Lysholm Score subjectively evaluate to how the knee pain has affected the ability to manage in everyday life.

Number of items: 8 items, each scored differently

Subscales:

  1. limp (0, 3, 5)
  2. support (0, 2, 5)
  3. locking (0, 2, 6, 10, 15)
  4. instability (0, 5, 10, 15, 20, 25)
  5. pain (0, 5, 10, 15, 20, 25)
  6. swelling (0, 2, 6, 10)
  7. stair climbing (0, 2, 6, 10)
  8. squatting (0, 2, 4, 5)

Total score is given as "excellent" for 95 to 100 points; "good" for 84 to 94 points, "fair" for 65 to 83 points, or "poor" for less than 65 points.

At 6 months after surgery.
Functional outcome score Knee Injury and Osteoarthritis Outcome (KOOS)
Time Frame: At 1 month after surgery.

Knee Injury and Osteoarthritis Outcome (KOOS) measure patients' opinions about their knee and associated problems over short- and long-term followup (1 week to decades).

Number of items: 42 items rated on a 5-point Likert scale (0-4) across 5 subscales:

  • pain frequency and severity during functional activities (subscale score range: 0-36)
  • symptoms such as the severity of knee stiffness and the presence of swelling, grinding or clicking, catching, and range of motion restriction (subscale score range: 0-28)
  • difficulty experienced during activities of daily living (ADL) (subscale score range: 0-68)
  • difficulty experienced with sport and recreational activities (subscale score range: 0-20)
  • knee-related quality of life (QOL) (subscale score range: 0-16)

The 5 dimensions are scored separately as the sum of all corresponding items, and then converted into percentage (score range 0-100). Score of 0 means extreme knee problems and score of 100 means no knee problems.

At 1 month after surgery.
Functional outcome score Knee Injury and Osteoarthritis Outcome (KOOS)
Time Frame: At 3 months after surgery.

Knee Injury and Osteoarthritis Outcome (KOOS) measure patients' opinions about their knee and associated problems over short- and long-term followup (1 week to decades).

Number of items: 42 items rated on a 5-point Likert scale (0-4) across 5 subscales:

  • pain frequency and severity during functional activities (subscale score range: 0-36)
  • symptoms such as the severity of knee stiffness and the presence of swelling, grinding or clicking, catching, and range of motion restriction (subscale score range: 0-28)
  • difficulty experienced during activities of daily living (ADL) (subscale score range: 0-68)
  • difficulty experienced with sport and recreational activities (subscale score range: 0-20)
  • knee-related quality of life (QOL) (subscale score range: 0-16)

The 5 dimensions are scored separately as the sum of all corresponding items, and then converted into percentage (score range 0-100). Score of 0 means extreme knee problems and score of 100 means no knee problems.

At 3 months after surgery.
Functional outcome score Knee Injury and Osteoarthritis Outcome (KOOS)
Time Frame: At 6 months after surgery.

Knee Injury and Osteoarthritis Outcome (KOOS) measure patients' opinions about their knee and associated problems over short- and long-term followup (1 week to decades).

Number of items: 42 items rated on a 5-point Likert scale (0-4) across 5 subscales:

  • pain frequency and severity during functional activities (subscale score range: 0-36)
  • symptoms such as the severity of knee stiffness and the presence of swelling, grinding or clicking, catching, and range of motion restriction (subscale score range: 0-28)
  • difficulty experienced during activities of daily living (ADL) (subscale score range: 0-68)
  • difficulty experienced with sport and recreational activities (subscale score range: 0-20)
  • knee-related quality of life (QOL) (subscale score range: 0-16)

The 5 dimensions are scored separately as the sum of all corresponding items, and then converted into percentage (score range 0-100). Score of 0 means extreme knee problems and score of 100 means no knee problems.

At 6 months after surgery.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Andri MT Lubis, MD, PhD, Indonesia University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

March 1, 2013

Primary Completion (ACTUAL)

March 30, 2014

Study Completion (ACTUAL)

March 30, 2014

Study Registration Dates

First Submitted

September 29, 2019

First Submitted That Met QC Criteria

October 9, 2019

First Posted (ACTUAL)

October 11, 2019

Study Record Updates

Last Update Posted (ACTUAL)

October 11, 2019

Last Update Submitted That Met QC Criteria

October 9, 2019

Last Verified

October 1, 2019

More Information

Terms related to this study

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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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