Evidence map›Paper›PMID 35854804›Full record

ArticleJournal of hip preservation surgery2022

Combined abnormalities of femoral version and acetabular version and McKibbin Index in FAI patients evaluated for hip preservation surgery.

Till D Lerch, Tiziano Antioco, Malin K Meier, Adam Boschung, Markus S Hanke, Moritz Tannast, Klaus A Siebenrock, Florian Schmaranzer, Simon D Steppacher

Open access · diamondAbstract read
In one paragraph

Article in Journal of hip preservation surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 22 citations in OpenAlex.

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  16. Uncertainty - a perennial.Journal of hip preservation surgery · 2022
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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

9 authors at 1 institution in 1 country.

Till D LerchDepartment of Diagnostic, Interventional and Paediatric Radiology, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.ORCID https://orcid.org/0000-0002-0475-0269
Tiziano AntiocoDepartment of Diagnostic, Interventional and Paediatric Radiology, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Malin K MeierDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Adam BoschungDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Markus S HankeDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Moritz TannastDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Klaus A SiebenrockDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
Florian SchmaranzerDepartment of Diagnostic, Interventional and Paediatric Radiology, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.ORCID https://orcid.org/0000-0002-8729-7243
Simon D SteppacherDepartment of Orthopaedic Surgery, University of Bern, Inselspital, Bern University Hospital, Bern, Switzerland.
University of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Frequencies of combined abnormalities of femoral version (FV) and acetabular version (AV) and of abnormalities of the McKibbin index are unknown. To investigate the prevalence of combined abnormalities of FV and AV and of abnormalities of the McKibbin index in symptomatic patients with femoroacetabular impingement (FAI), a retrospective, Institutional Review Board (IRB)-approved study of 333 symptomatic patients (384 hips) that were presented with hip pain and FAI was performed. The computed tomography/magnetic resonance imaging based measurement of central AV, cranial AV and FV was compared among five subgroups with distinguished FAI subgroups and patients that underwent a hip preservation surgery. The allocation to each subgroup was based on AP radiographs. Normal AV and FV were 10-25°. The McKibbin index is the sum of central AV and FV. Of patients that underwent a hip preservation surgery, 73% had a normal McKibbin index (20-50°) but 27% had an abnormal McKibbin index. Of all patients, 72% had a normal McKibbin index, but 28% had abnormal McKibbin index. The prevalence of combined abnormalities of FV and AV varied among subgroups: a higher prevalence of decreased central AV combined with decreased FV of patients with acetabular-retroversion group (12%) and overcoverage (11%) was found compared with mixed-type FAI (5%). Normal AV combined with normal FV was present in 41% of patients with cam-type FAI and in 34% of patients with overcoverage. Patients that underwent a hip preservation surgery had normal mean FV (17 ± 11°), central AV (19 ± 7°), cranial AV (16 ± 10°) and McKibbin index (36 ± 14°). Frequency of combined abnormalities of AV and FV differs between subgroups of FAI patients. Aggravated and compensated McKibbin index was prevalent in FAI patients. This has implications for open hip preservation surgery (surgical hip dislocation or femoral derotation osteotomy) or hip arthroscopy or non-operative treatment.

Identifiers

PMID35854804
PMCPMC9291377
OpenAlexW4224220199

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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.