Evidence map›Paper›PMID 33772361›Full record

ArticleArchives of orthopaedic and trauma surgery2022

The effect of gastrocnemius resection on knee flexion in a total knee arthroplasty model.

Jeffrey Rocco, David Putzer, Michael Nogler, Alexandra Rocco, Paul Maitino, Martin Thaler

Abstract read
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In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2022. 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
0.4field-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

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

  1. Pooled it
  2. Article
  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

6 authors at 2 institutions in 1 country.

Jeffrey RoccoUtah Orthopaedics, 5782 Adams Avenue Parkway, Ogden, UT, 84405, USA. jrocco@utahorthopaedics.com.
David PutzerDepartment of Orthopaedics-Experimental Orthopaedics, Medical University of Innsbruck, Innrain 36, 6020, Innsbruck, Austria.
Michael NoglerDepartment of Orthopaedics-Experimental Orthopaedics, Medical University of Innsbruck, Innrain 36, 6020, Innsbruck, Austria.
Alexandra RoccoUtah Orthopaedics, 5782 Adams Avenue Parkway, Ogden, UT, 84405, USA.
Paul MaitinoJoint Reconstructive Specialists, Inc., 3110 SW 89th Street Suite 200D, Oklahoma City, OK, 73159, USA.
Martin ThalerDepartment of Orthopaedics, Medical University of Innsbruck, Innrain 36, 6020, Innsbruck, Austria.
Universität Innsbruck · ATInnsbruck Medical University · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFlexion contracture in knee arthritis and total knee arthroplasty (TKA) is a common and significant problem. An improvement in knee extension in patients with TKA and mild flexion contractures has been observed clinically when a gastrocnemius recession was performed for other concomitant conditions. The goal of this study was to quantify the effect of gastrocnemius recession on knee flexion in TKA cadaver model. MATERIALS AND

methodsRange of motion (ROM) of 23 cadaveric knees was determined with a navigation system before and after performing TKA using a medial parapetallar approach and after performing a gastrocnemius recession. Varus-valgus, flexion-extension, and internal-external rotation angles of the knee joint were recorded with leg in full extension and in 90°of knee flexion. Extension and flexion gaps were measured using a gap tensioning device. Dorsiflexion of the foot was measured with a goniometer when a torque moment of 10 Nm was applied to the ankle joint.

resultsA statistically significant improvement of 5° in knee extension was observed following gastrocnemius recession (P = 0.015). Varus and valgus angles, internal, and external rotation were unaffected by gastrocnemius recession. Ankle dorsiflexion increased by 9° following gastrocnemius recession (P ≤ 0.001).

conclusionsPerforming a gastrocnemius recession improves the knee extension in TKA knees with flexion contractures. Gastrocnemius recession may be a useful technique to improve terminal extension in TKA.

Indexed as

Arthroplasty, Replacement, KneeContractureHumansKneeKnee JointRange of Motion, ArticularFlexion contractureGastrocnemiusGastrocnemius recessionKneeRange of motionTotal knee arthroplasty

Identifiers

PMID33772361
OpenAlexW3139067055

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.