Results after anterior cruciate ligament reconstruction using the quadriceps tendon with or without a bone block

Clinical outcomes in anterior cruciate ligament reconstruction using quadriceps tendon autografts with or without bone block: a patient-blinded prospective randomized trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN95543927

Enrollment

Registered

2017-02-16

Start date

2017-01-01

Completion date

Unknown

Last updated

2018-02-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior cruciate ligament injury Musculoskeletal Diseases Anterior cruciate ligament injury

Interventions

Participants are randomised to one of two groups in a 1:1 ratio using the closed envelope method. Group 1: Participants receive an anterior cruciate ligament reconstruction using a quadriceps tendon

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Age 18-60 years 2. Diagnosed with anterior knee instability requiring anterior cruciate ligament reconstruction in which the surgeon chose a QTB graft for reconstruction 3. Obtained written consent

Exclusion criteria

Exclusion criteria: 1. Patient prefers one surgical technique over the other or does not consent to a surgical treatment at all 2. Pre-existing ipsilateral knee pathology 3. Bilateral ACL injuries 4. Chronic ACL injuries older than 6 months 5. Multiligament injuries (in combination with posterior cruciate or collateral ligament injuries grade II or higher) 6. Chondral injuries (lesions greater than 2cm2 with a depth of more than 50% of the cartilage thickness) 7. Meniscal injuries (involving more than 2/3 of the meniscus or need for meniscus repair) 8. Infection 9. Systematic disease 10. Lack of compliance 11. Chronic alcohol or drug abuse

Design outcomes

Primary

Measure	Time frame
Anterior knee stability is measured using the Lachman test at baseline, 6, 12 and 24 months post-operatively.	—

Secondary

Measure	Time frame
1. Pain is measured using the visual analogue scale (VAS) at baseline, 6, 12 and 24 months post-operatively 2. Patient-reported outcome is measured using the Lysholm and Tegner score (questionnaire) baseline, 6, 12 and 24 months post-operatively 3. Knee muscle strength is measured using a dynamometer at baseline, 6, 12 and 24 months post-operatively 4. Balance, speed and strength of the lower limb are measured using the "Back in action" test battery at baseline, 6, 12 and 24 months post-operatively 5. Osteoarthritis is measured using x-ray (Kellgren and Lawrence score) at 24 months post-operatively	—

Measure

Time frame

1. Pain is measured using the visual analogue scale (VAS) at baseline, 6, 12 and 24 months post-operatively 2. Patient-reported outcome is measured using the Lysholm and Tegner score (questionnaire) baseline, 6, 12 and 24 months post-operatively 3. Knee muscle strength is measured using a dynamometer at baseline, 6, 12 and 24 months post-operatively 4. Balance, speed and strength of the lower limb are measured using the "Back in action" test battery at baseline, 6, 12 and 24 months post-operatively 5. Osteoarthritis is measured using x-ray (Kellgren and Lawrence score) at 24 months post-operatively

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Countries

Austria

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026