Evidence map›Paper›PMID 37404301›Full record

ArticleThe archives of bone and joint surgery2023

Abnormal Patterns of Biceps and Triceps Co-Contraction Following Elbow Surgery May Result in Elbow Stiffness.

Pedro K Beredjiklian, Amir R Kachooei, Greg Gallant, Jack Abboudi, Moody Kwok, Robert Takei, Robert N Hotchkiss

Open access · greenAbstract read
In one paragraph

Article in The archives of bone and joint surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
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  3. Article
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 at 5 institutions in 1 country.

Pedro K BeredjiklianRothman Orthopedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Amir R KachooeiRothman Orthopedic Institute, Adventhealth, Orlando, FL, USA.
Greg GallantRothman Orthopedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Jack AbboudiRothman Orthopedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Moody KwokRothman Orthopedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Robert TakeiRothman Orthopedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Robert N HotchkissDivision of Hand and Upper Extremity Surgery, Hospital for Special Surgery, New York, NY, USA.
Orthopedic Institute · USThomas Jefferson University · USHospital for Special Surgery · USRothman Institute · USUniversity of Central Florida · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: This study examines the pattern of muscular contraction and the intensity of this contraction of the biceps and triceps following elbow surgery. Methods: We performed a prospective electromyographic study of 16 patients undergoing 19 surgical procedures on the elbow joint. We measured the resting EMG signal intensity of the biceps and triceps of the operated and the normal sides at 90 degrees. We then calculated the peak EMG signal intensity during passive elbow flexion and extension of the operated side. Results: Seventeen of 19 elbows (89%) displayed a co-contraction pattern of the biceps and triceps near the end of flexion and extension during the passive range of motion. The co-contraction pattern was observed near the end of the range of motion in both flexion and extension. In addition to the observed co-contraction patterns, we detected higher contraction intensities for the biceps and triceps muscles in all patients in both flexion and extension for the elbows, which had been treated surgically. Further analysis suggests an inverse correlation between the biceps contraction intensity and the arc of motion measured at the latest follow-up. Conclusion: The co-contraction pattern and increased contraction intensity of periarticular muscle groups may result in internal splinting mechanisms, contributing to the development of elbow joint stiffness, which is frequently observed following elbow surgery.

Indexed as

BicepsCo-contractionElbow contractureEMGHeterotopic OssificationInstabilityTriceps

Identifiers

PMID37404301
PMCPMC10314983
OpenAlexW4383186943

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.