Evidence map›Paper›PMID 36412545›Full record

ArticleThe American journal of sports medicine2023

Natural History of Degenerative Hip Abductor Tendon Lesions.

Pascal Schenk, Dimitris Dimitriou, Stefan Rahm, Stefan M Zimmermann, Michael Finsterwald, Kai Higashigaito, Reto Sutter, Patrick O Zingg

Open access · hybridAbstract read
In one paragraph

Article in The American journal of sports medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

Pascal SchenkDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Dimitris DimitriouDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Stefan RahmDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Stefan M ZimmermannDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Michael FinsterwaldDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Kai HigashigaitoDepartment of Radiology, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Reto SutterDepartment of Radiology, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
Patrick O ZinggDepartment of Orthopedics, University Hospital Balgrist, University of Zürich, Zürich, Switzerland.
University of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe best treatment of degenerative hip abductor tendon lesions remains largely unknown, as the natural course of the disease has not yet been reported. The aim of the present study was to investigate the natural history of symptomatic degenerative hip abductor lesions. HYPOTHESIS: Nonoperatively treated hip abductor lesions progress over time, resulting in refractory hip pain and low functional outcomes. STUDY

designCase series (prognosis); Level of evidence, 4.

methodsConsecutive patients with greater trochanteric pain syndrome and degenerative changes on magnetic resonance imaging (MRI) of the symptomatic hip were included. Bilateral hip MRI scans and a clinical examination were performed at a minimum follow-up of 36 months to study the type and location of hip abductor lesion. Progression of a lesion was defined as a more severe lesion as compared with the initial MRI results or if the lesion extended to another, initially not involved, trochanteric facet. The muscle's fatty infiltration (FI) was also described.

resultsFrom 106 patients identified, 58 patients (64 hips) aged 66 ± 14 years (mean ± SD) agreed to return to the clinic for follow-up MRI and met the inclusion criteria. At a mean 71-month follow-up, an overall 34% (22/64) of lesions had progressed over time: from trochanteric bursitis to tendinopathy (9/64, 14%) or partial tear (5/64, 8%), from tendinopathy to partial tear (4/64, 6%), from a partial to complete tear (3/64, 4.5%), and with 1 complete tear (1/64, 1.5%) extending to another trochanteric facet. Interestingly, 90% of partial tears remained stable or transformed into a scar. Although patients with a progressive lesion experienced more trochanteric pain (visual analog scale, 4.6 vs 2.8;

conclusionNonoperative treatment might be a valid long-term option for degenerative hip abductor lesions, especially for partial tears, which demonstrated a low risk of clinically relevant progression or muscle FI and similar clinical outcomes to those reported in the literature for operatively treated hip abductor tendon lesions.

Indexed as

BursitisTendinopathyArthralgiaHip JointHumansMagnetic Resonance ImagingMuscle, SkeletalTendonsfatty infiltrationgreater trochanteric pain syndrome (GTPS)hip abductor tendon tearnatural historytrochanteric bursitis

Identifiers

PMID36412545
PMCPMC9810830
OpenAlexW4309665481

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Registered trials

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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.