Evidence map›Paper›PMID 30509244›Full record

Trial reportBMC musculoskeletal disorders2018

Reattachment of the flexor and extensor tendons at the epicondyle in elbow instability: a biomechanical comparison of techniques.

Andreas Lenich, Christian Pfeifer, Philipp Proier, Roman Fleer, Coen Wijdicks, Martina Roth, Frank Martetschläger, Jonas Pogorzelski

Open access · goldAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 39% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. Review
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

8 authors at 3 institutions in 1 country.

Andreas LenichHelios Clinic Munich West, Department of Orthopedic Sports Medicine, Trauma Surgery and Hand Surgery, Steinerweg 5, 81241, Munich, Germany.
Christian PfeiferRegensburg University Medical Center, Department of Trauma Surgery, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Philipp ProierDepartment of Orthopedic Sports Medicine, Technical University of Munich, Klinikum rechts der Isar, Ismaninger Str. 22, 81675, Munich, Germany.
Roman FleerDepartment of Orthopedic Sports Medicine, Technical University of Munich, Klinikum rechts der Isar, Ismaninger Str. 22, 81675, Munich, Germany.
Coen WijdicksDepartment of Research & Development, Arthrex GmbH, Munich, Germany.
Martina RothDepartment of Research & Development, Arthrex GmbH, Munich, Germany.
Frank MartetschlägerGerman Center for Shoulder Surgery, ATOS Clinic Munich, Effnerstraße 38, 81925, Munich, Germany.
Jonas PogorzelskiDepartment of Orthopedic Sports Medicine, Technical University of Munich, Klinikum rechts der Isar, Ismaninger Str. 22, 81675, Munich, Germany. jonas.pogorzelski@tum.de.ORCID http://orcid.org/0000-0002-6178-4940
TUM Klinikum · DEArthrex (Germany) · DEMünchen Klinik · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElbow dislocation represents a common injury, especially in the younger population. If treated surgically, the reattached tendons require a high amount of primary stability to allow for an early rehabilitation to avoid postoperative stiffness. The purpose of this study was to assess the biomechanical properties of a single and a double row technique for reattachment of the common extensor and common flexor muscles origin. We hypothesized that the double row technique would provide greater stability in terms of pullout forces than the single row technique.

methodsTwelve cadaveric specimens were randomized into two groups of fixation methods for the common extensor tendon or the common flexor tendon at the elbow (1): a single row technique using two knotted 3.0 mm suture anchors, and (2) a double row technique using an additional knotless 3.5 mm anchor. The repairs were cyclically loaded over 500 cycles at 1 Hz from 10 N to a maximum of 100 N (extensors) or 150 N (flexors), and then pulled to failure. Stiffness and maximum load at failure and mode of failure were recorded and calculated.

resultsNo significant differences in stiffness were observed between the two techniques for both the extensor and flexor reattachment (P = 0.701 and P = 0.306, respectively). The mean maximum load at failure indicated that the double row construct was significantly stronger than the single row construct. This was found to be true for both the extensor and flexor reattachment (213.6; SD 78.7 N versus 384.1; SD 105.6 N, P = 0.010 and 203.7; SD 65.8 N versus 318.0; SD 64.6 N, P = 0.013, respectively).

conclusionsThe double row technique provides significant greater stability to the reattached common flexor or extensor origin to the medial or lateral epicondyle. Thus, it should be considered in the development of improved repair techniques for stabilizers of the elbow. STUDY

designControlled laboratory study.

Indexed as

Elbow InjuriesSuture TechniquesBiomechanical PhenomenaCadaverElbow JointHumansJoint DislocationsJoint InstabilityOrthopedic ProceduresSuture AnchorsTendon InjuriesTendonsTensile StrengthCommon extensor muscle originCommon flexor muscle originDislocationElbowReattachment

Identifiers

PMID30509244
PMCPMC6278143
OpenAlexW2903505465

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.