Evidence map›Paper›PMID 38358293›Full record

ArticleSICOT-J2024

Collared versus collarless hydroxyapatite-coated stems for primary cementless total hip arthroplasty; a systematic review of comparative studies. Is there any difference in survival, functional, and radiographic outcomes?

Vasileios Giovanoulis, Eustathios Kenanidis, Florence Aïm, Zakareya Gamie, Simon Marmor, Michael Potoupnis, Sébastien Lustig, Eleftherios Tsiridis

Abstract read
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Article in SICOT-J, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Review
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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.

Vasileios GiovanoulisOrthopedic Surgery Department, Groupe Hospitalier Diaconnesses Croix Saint-Simon, 125 Rue d'Avron, 75020 Paris, France - Academic Orthopaedic Department, Aristotle University Medical School, General Hospital Papageorgiou, Ring Road Efkarpia, Thessaloniki, 56403, Greece - Center of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation(CIRI)-Aristotle University of Thessaloniki (AUTH), Balkan Center, Buildings A & B, Thessaloniki, 10th km Thessaloniki-Thermi Rd, PO Box 8318, GR 57001, Greece - Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Hospices Civils de Lyon, 103 Grande Rue de La Croix Rousse, 69004 Lyon, France.ORCID 0000-0002-2828-4661
Eustathios KenanidisAcademic Orthopaedic Department, Aristotle University Medical School, General Hospital Papageorgiou, Ring Road Efkarpia, Thessaloniki, 56403, Greece - Center of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation(CIRI)-Aristotle University of Thessaloniki (AUTH), Balkan Center, Buildings A & B, Thessaloniki, 10th km Thessaloniki-Thermi Rd, PO Box 8318, GR 57001, Greece.ORCID 0000-0001-9517-1600
Florence AïmOrthopedic Surgery Department, Groupe Hospitalier Diaconnesses Croix Saint-Simon, 125 Rue d'Avron, 75020 Paris, France.
Zakareya GamieAcademic Orthopaedic Department, Aristotle University Medical School, General Hospital Papageorgiou, Ring Road Efkarpia, Thessaloniki, 56403, Greece - Center of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation(CIRI)-Aristotle University of Thessaloniki (AUTH), Balkan Center, Buildings A & B, Thessaloniki, 10th km Thessaloniki-Thermi Rd, PO Box 8318, GR 57001, Greece.
Simon MarmorOrthopedic Surgery Department, Groupe Hospitalier Diaconnesses Croix Saint-Simon, 125 Rue d'Avron, 75020 Paris, France.
Michael PotoupnisAcademic Orthopaedic Department, Aristotle University Medical School, General Hospital Papageorgiou, Ring Road Efkarpia, Thessaloniki, 56403, Greece - Center of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation(CIRI)-Aristotle University of Thessaloniki (AUTH), Balkan Center, Buildings A & B, Thessaloniki, 10th km Thessaloniki-Thermi Rd, PO Box 8318, GR 57001, Greece.ORCID 0000-0002-1236-5176
Sébastien LustigOrthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Hospices Civils de Lyon, 103 Grande Rue de La Croix Rousse, 69004 Lyon, France.
Eleftherios TsiridisAcademic Orthopaedic Department, Aristotle University Medical School, General Hospital Papageorgiou, Ring Road Efkarpia, Thessaloniki, 56403, Greece - Center of Orthopaedic and Regenerative Medicine (CORE), Center for Interdisciplinary Research and Innovation(CIRI)-Aristotle University of Thessaloniki (AUTH), Balkan Center, Buildings A & B, Thessaloniki, 10th km Thessaloniki-Thermi Rd, PO Box 8318, GR 57001, Greece.ORCID 0000-0001-8278-1653

Funding

No Funding
6 · The paper itself

Abstract

introductionThis systematic review aims to critically assess the literature comparative studies investigating collared and collarless Corail stem in primary total hip arthroplasty (THA) to find differences in revision rates, radiographic and clinical outcomes, and postoperative complications between these two types of the same stem.

methodsEligible studies were found by searching PubMed, Science Direct/Scopus, and the Cochrane Database of Systematic Reviews from conception till May 2023. The PRISMA guidelines were followed. The investigation encompassed randomized controlled trials, case series, comparative, cohort, and observational studies that assessed at least one comparative outcome or complication between collared and collarless Corail stems.

resultsTwelve comparative studies with 90,626 patients undergoing primary THA were included. There were 40,441 collared and 58,543 collarless stems. The follow-up ranged from 12 to 360 months. Our study demonstrated no significant difference in stem revision relative risk (RR = 0.68; 95% confidence interval (CI), 0.23, 2.02; p = 0.49), number of radiolucent lines (RR = 0.3; 95% CI, 0.06, 2.28; p = 0.29) and overall complication risk (RR = 0.62; 95% CI, 0.22, 1.76; p = 0.37) between collared and collarless stems. The collared stems demonstrated significantly lesser subsidence (mean difference: 1.01 mm; 95% CI, -1.77, -0.25; p = 0.009) and risk of periprosthetic fractures (RR = 0.52; 95% CI, 0.29, 0.92; p = 0.03).

conclusionThe comparative studies between collared and collarless stem groups showed similar survival and overall complication rates and functional outcomes. The similar revision rates between groups make the impact of higher subsidence for collarless stems uncertain. The lower risk of periprosthetic fractures in the collared stems group must be clarified further but could be related to increased rotational stability.

Indexed as

CollarCorailOutcomesStemTotal Hip Arthroplasty (THA)

Identifiers

PMID38358293
PMCPMC10868518

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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.