Evidence map›Paper›PMID 34708137›Full record

ArticleOrthopaedic journal of sports medicine2021

Influence of Graft Bending Angle on Femoral Tunnel Widening After Double-Bundle ACL Reconstruction: Comparison of Transportal and Outside-In Techniques.

Do Kyung Lee, Jun Ho Kim, Byung Hoon Lee, Hyeonsoo Kim, Min Jae Jang, Sung-Sahn Lee, Joon Ho Wang

Registry-linked trialAbstract read
In one paragraph

Article in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06357091 (ACL Reconstruction With Human Allograft Cortical Bone Screw), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

NCT06357091 narecruitingnot on this mapstarted 2026, after this paper: background citation

ACL Reconstruction With Human Allograft Cortical Bone Screw (Shark Screw®) or Biocomposite-interference Screws - a Prospective, Randomized, Controlled Trial.

TypeinterventionalSponsorAlexander Rofner-MorettiRan2026 to 2034Enrolled80ConditionsAnterior Cruciate Ligament Rupture, Anterior Cruciate Ligament Reconstruction, Anterior Cruciate Ligament InjuryArmsACL reconstruction with Shark Screw ACL®, ACL reconstruction with biocomposite screw (Mecta)
3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Do Kyung LeeDepartment of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.   .
Jun Ho KimDepartment of Orthopedic Surgery, Kyung Hee University Hospital at Gangdong, South Korea.
Byung Hoon LeeDepartment of Orthopedic Surgery, Gachon University Gil Medical Center, Incheon, South Korea.
Hyeonsoo KimDepartment of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.   .
Min Jae JangDepartment of Orthopedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea.   .
Sung-Sahn LeeDepartment of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, South Korea.
Joon Ho WangDepartment of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have suggested that increased mechanical stress due to acute graft bending angle (GBA) is associated with tunnel widening and graft failure after anterior cruciate ligament (ACL) reconstruction. Few studies have compared the GBA between the outside-in (OI) and the transportal (TP) techniques. PURPOSE: To evaluate the influence of GBA on clinical outcomes and tunnel widening after ACL reconstruction with OI versus TP technique. STUDY

designCohort study; Level of evidence, 3.

methodsIncluded in the study were 56 patients who underwent double-bundle ACL reconstruction (n = 28 in the OI group and n = 28 in the TP group). Clinical outcomes (Lysholm, International Knee Documentation Committee, Tegner score, and knee laxity) 1 year postoperatively were evaluated. Computed tomography scans at 5 days and 1 year postoperatively were used for imaging measurements, and the femoral tunnel was divided into the proximal third, middle, and aperture sections. The GBA and cross-sectional area (CSA) were measured using image analysis software and were compared between groups. A correlation analysis was performed to determine if the GBA affected clinical outcomes or tunnel widening.

resultsNo significant difference was observed in clinical outcomes between the groups. The GBA of both the anteromedial (AM) and posterolateral bundles were more acute in the OI group compared with the TP group (

conclusionRegardless of technique, the GBA did not have a significant influence on tunnel widening or clinical outcomes. Considering a wider AM tunnel aperture, a more proximal and posterior AM tunnel position might be appropriate with the OI technique.

Indexed as

double-bundle ACL reconstructiongraft banding angleoutside-in techniquetransportal techniquetunnel widening

Identifiers

PMID34708137
PMCPMC8543726

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.