Trial reportBMC musculoskeletal disorders2017
Paradoxical tunnel enlargement after ACL reconstruction with hamstring autografts when using β-TCP containing interference screws for tibial aperture fixation- prospectively comparative study.
Trial report in BMC musculoskeletal disorders, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02754674 (Comparison of Femoral Tunnel Placement, Geometry and Clinical Outcome Using Two Anterior Cruciate Ligament Reconstruction Technique; Transportal Technique and Outside in Technique With Remnant Preservation. Prospective Randomized Trial), which is not on this map. Cited by 11 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparison of Femoral Tunnel Placement, Geometry and Clinical Outcome Using Two Anterior Cruciate Ligament Reconstruction Technique; Transportal Technique and Outside in Technique With Remnant Preservation. Prospective Randomized Trial
Who cites it
11 citing papers in PubMed.
- Prospective randomised controlled trial comparing PLLA and PLDLA/HA/β-TCP interference screws in anterior cruciate ligament reconstruction: CT scans, MRI and clinical outcomes.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Trial
- Trial
- Clinical and Radiological Outcomes of All-inside Versus Complete Tibial Tunnel Techniques in Anterior Cruciate Ligament Reconstruction using Hamstring Tendon Autograft: A Prospective Comparative Study.Journal of orthopaedic case reports · 2026Article
- Global Variations in Surgical Techniques for Primary Anterior Cruciate Ligament Reconstruction at Minimum 2-Year Follow-up: A Systematic Review of Randomized Clinical Trials.Orthopaedic journal of sports medicine · 2025Article
- Radiographic Tibial Tunnel Assessment After Anterior Cruciate Ligament Reconstruction Using Hamstring Tendon Autografts and Biocomposite Screws: A Prospective Study With 10-Year Follow-up.Orthopaedic journal of sports medicine · 2024Article
- Comparison of the Clinical Outcomes between All-inside and Standard Technique in Anterior Cruciate Ligament Reconstruction with 6-strand Hamstring Tendon Autograft.Orthopaedic surgery · 2024Article
- Anterior Screw Insertion Results in Greater Tibial Tunnel Enlargement Rates after Single-Bundle Anterior Cruciate Ligament Reconstruction than Posterior Insertion: A Retrospective Study.Medicina (Kaunas, Lithuania) · 2023Article
- Descriptive Characteristics and Outcomes of Patients Undergoing Revision Anterior Cruciate Ligament Reconstruction With and Without Tunnel Bone Grafting.The American journal of sports medicine · 2022Article
- Does an Adjustable-Loop Device Loosen following ACL Reconstruction with a Hamstring Graft? A Retrospective Study with a Follow-Up of Two Years.Journal of clinical medicine · 2022Article
- Differences in artificial ligament graft osseointegration of the anterior cruciate ligament in a sheep model: a comparison between interference screw and cortical suspensory fixation.Annals of translational medicine · 2021Article
- BONE TUNNEL ENLARGEMENT WITH NON-METALLIC INTERFERENCE SCREWS IN ACL RECONSTRUCTION.Acta ortopedica brasileira · 2018Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTibial aperture fixation with a bioabsorbable interference screw is a popular fixation method in anterior cruciate ligament reconstruction (ACLR). An interference screw containing β-tricalcium phosphate (β-TCP) to improve bony integration and biocompatibility was recently introduced. This study aims to compare the clinical outcomes and radiological results of tunnel enlargement effect between the 2 bioabsorbable fixative devices of pure poly-L-lactic acid (PLLA) interference screws and β-TCP-containing screws, for tibial interference fixation in ACLR using hamstring autografts.
methodsEighty consecutive patients who had undergone double-bundle ACLR between 2011 to 2012 were prospectively reviewed and randomly divided into two groups based on the type of tibial interference screw: 28 were assigned to the pure PLLA screw group (Group A), while the other 29 were assigned to the β-TCP-containing screw fixation group (Group B). Clinical evaluations and radiological analyses were conducted in both groups with a minimum 2- year follow-up.
resultsThere was no significant difference in subjective or objective clinical outcome between the 2 groups. In radiological analyses, the use of a β-TCP-containing screw reduced tunnel widening in the portion of the tunnel with screw engagement compared to the pure PLLA screw, while the use of a β-TCP-containing screw resulted in greater tunnel enlargement in the proximal portion of the tunnel without screw engagement than use of a pure PLLA screw.
conclusionUse of a β-TCP-containing interference screw in tibial aperture fixation reduced tunnel enlargement in the vicinity of the screw, whereas greater enlargement occurred proximal to the screw end relative to use of a pure PLLA interference screw. These paradoxical enlargements in use of β-TCP containing screws suggest that for reducing tunnel enlargement, the length of the interference screw should be as fit as possible with tunnel length in terms of using soft grafts. LEVEL OF EVIDENCE: II, Prospectively comparative study.
trial registrationRetrospectively registered with ClinicalTrials.gov. (NCT02754674) , Date of trial registration: February 10, 2016.
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