Evidence map›Paper›PMID 30809723›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019

The medial epicondyle of the distal femur is the optimal location for MRI measurement of semitendinosus and gracilis tendon cross-sectional area.

Clayton T Hodges, Trevor J Shelton, Cyrus P Bateni, Stephen S Henrichon, Alton W Skaggs, Robert D Boutin, Cassandra A Lee, Brian M Haus, Richard A Marder

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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 26% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Observational
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  7. Assessment of thickness ofAnatomy & cell biology · 2021
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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

9 authors at 1 institution in 1 country.

Clayton T HodgesDepartment of Orthopaedic Surgery, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
Trevor J SheltonDepartment of Orthopaedic Surgery, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA. tjshelton@ucdavis.edu.ORCID http://orcid.org/0000-0002-2032-3371
Cyrus P BateniDepartment of Radiology, University of California, Davis, 4860 Y Street, Suite 3100, Sacramento, CA, 95817, USA.
Stephen S HenrichonDepartment of Radiology, University of California, Davis, 4860 Y Street, Suite 3100, Sacramento, CA, 95817, USA.
Alton W SkaggsSchool of Medicine at University of California at Davis, Sacramento, CA, 95817, USA.
Robert D BoutinDepartment of Radiology, University of California, Davis, 4860 Y Street, Suite 3100, Sacramento, CA, 95817, USA.
Cassandra A LeeDepartment of Orthopaedic Surgery, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
Brian M HausDepartment of Orthopaedic Surgery, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
Richard A MarderDepartment of Orthopaedic Surgery, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
University of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeGraft diameter ≥ 8 mm reduces the risk of failure after anterior cruciate ligament reconstruction (ALCR) with hamstring tendon autograft. Pre-operative measurement of gracilis (GT) and semitendinosus (ST) cross-sectional area using MRI has been utilized but the optimal location for measurement is unknown. The main purpose of this study was to examine the cross-sectional areas of GT + ST at different locations and develop a model to predict whether a doubled hamstring graft of GT + ST will be of sufficient cross-sectional area for ACLR.

methodsA retrospective review was performed of 154 patients who underwent primary ACLR using doubled hamstring autograft. Cross-sectional area measurements of GT + ST on pre-operative MRI axial images were made at three locations: medial epicondyle (ME), tibiofemoral joint line (TJL), and tibial physeal scar (TPS) and calculated the correlation of intra-operative graft size for each location using the Pearson's correlation coefficient. A receiver operating characteristic (ROC) established a threshold that would predict graft diameter ≥ 8 mm.

resultsMeasurement of GT + ST at the ME had a stronger correlation (r = 0.389) to intra-operative graft diameter than measurements at the TJL (r = 0.256) or TPS (r = 0.240). The ROC indicated good predictive value for hamstring graft diameter ≥ 8 mm based on MRI measurement at the ME with the optimal threshold with the highest sensitivity and specificity as 18 mm

conclusionCross-sectional area measurement of GT + ST at the ME correlated most closely to intra-operative diameter of a doubled hamstring autograft compared to measurements at the TJL or the TPS. As graft diameter < 8 mm is correlated with higher failure rates of ACL surgery, the ability to pre-operatively predict graft diameter is clinically useful. LEVEL OF EVIDENCE: Level III, prognostic study.

Indexed as

AdolescentAdultAnterior Cruciate Ligament InjuriesAnterior Cruciate Ligament ReconstructionBone and BonesFemaleFemurGracilis MuscleHamstring TendonsHumansMagnetic Resonance ImagingMaleRetrospective StudiesROC CurveTibiaTransplantation, AutologousACL reconstructionAnatomyGraft sizeHamstring autograftMRIPreoperative planning

Identifiers

PMID30809723
OpenAlexW2917834397

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.