Evidence map›Paper›PMID 34349397›Full record

ArticleJournal of orthopaedics

Restoring hip biomechanics during the learning curve of a novice surgeon: Direct anterior approach vs posterior approach.

Oriol Pujol, Diego Soza, Yuri Lara, Sara Castellanos, Alejandro Hernández, Víctor Barro

Open access · greenAbstract read
In one paragraph

Article in Journal of orthopaedics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 27% 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, 6 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

6 authors at 2 institutions in 1 country.

Oriol PujolHip Surgery Unit, Orthopaedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona Departament de Cirurgia, Barcelona, Spain.
Diego SozaHip Surgery Unit, Orthopaedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona Departament de Cirurgia, Barcelona, Spain.
Yuri LaraHip Surgery Unit, Orthopaedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona Departament de Cirurgia, Barcelona, Spain.
Sara CastellanosHip Surgery Unit, Orthopaedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona Departament de Cirurgia, Barcelona, Spain.
Alejandro HernándezHip Surgery Unit, Orthopedic Surgery Department, Josep Trueta University Hospital, Girona, Spain.
Víctor BarroHip Surgery Unit, Orthopaedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona Departament de Cirurgia, Barcelona, Spain.
Universitat Autònoma de Barcelona · ESHospital Universitari de Girona Doctor Josep Trueta · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIt remains controversial whether the direct anterior approach (DAA) or the posterior approach (PA) allows better restoration of hip biomechanics after total hip arthroplasty (THA). Besides, it is not certain which approach is best for a novice surgeon to avoid implant malposition, neither during the learning curve nor once the curve plateau has been reached.

methodsWe performed a retrospective cohort study of THAs operated on between 2014 and 2019 by a single novice surgeon (DAA, n = 187; PA, n = 184). The surgeon used both approaches, and thus went through parallel learning curves.

resultsWhile the DAA presented a greater number of acetabular cup implantations within Lewinnek's "safe zone" for inclination (84.5% vs. 79.3%; p = 0.003), the PA returned superior results for anteversion (77.7% vs. 68.4%; p = 0.000). The PA showed a tendency to verticalize acetabular cups, while the DAA tended to antevert them. The DAA resulted in fewer patients with leg length discrepancy (3.2% vs. 8.2%, p = 0.041). No differences were found in stem coronal alignment or femoral offset.

conclusionBoth approaches are safe and reliable for restoring hip biomechanics through THA surgery during the learning curve of a novice hip surgeon. Similar radiological outcomes are also seen once the surgeon has reached the learning curve plateau.

Indexed as

Direct anterior approachHip biomechanicsImplant positionLearning curvePosterior approachTotal hip arthroplasty

Identifiers

PMID34349397
PMCPMC8319457
OpenAlexW3180282252

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.