Evidence map›Paper›PMID 30583822›Full record

ArticleActa orthopaedica et traumatologica turcica2019

Long term survival analysis of cementless Spotorno femoral stem in young patients.

Murat Mert, Cenk Ermutlu, Emrah Kovalak, Ethem Ünkar, Sibel Çağlar Okur

Open access · bronzeAbstract read
In one paragraph

Article in Acta orthopaedica et traumatologica turcica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 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

5 authors at 2 institutions in 1 country.

Murat Mertİstanbul Training and Research Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey.
Cenk Ermutluİstanbul Training and Research Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey. Electronic address: cermutlu@hotmail.com.
Emrah Kovalakİstanbul Training and Research Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey.
Ethem Ünkarİstanbul Training and Research Hospital, Department of Orthopaedics and Traumatology, İstanbul, Turkey.
Sibel Çağlar Okurİstanbul Training and Research Hospital, Department of Physical Therapy and Rehabilitation, İstanbul, Turkey.
Istanbul Eye Hospital · TRÜmraniye Eğitim ve Araştırma Hastanesi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this study was to analyze the survivorship and clinical outcome of Cementless Spotorno (CLS) stem in young patients.

methodsA total of 99 consecutive hip arthroplasties using CLS stem were performed on 84 patients younger than 50 years of age between 1993 and 2001. 63 patients were available for final follow-up (mean age: 39 ± 7.8 (range: 22-50)). Patients' Harris Hip Scores (HHS) and survivorship estimates were calculated. Radiographs were analyzed for acetabular implant status, canal fill index (CFI), stem alignment, osteolysis, and stress shielding.

resultsMean follow-up time was 18 years (13-3), and mean HHS was 88.7 (58-100). Patients with femoral neck fracture had a more favorable functional outcome (p = 0.027), while those with stems in varus had lower scores (p = 0.017). 31 stems (49%) were undersized and 30 hips (47%) had perifemoral osteolysis. Acetabular impairment was strongly associated with osteolysis in Gruen zones 1 and 7 (p < 0.01). Seventeen of the osteolytic lesions occurred in Gruen zone 1, 4 lesions in zone 2, 9 in zone 6 and 22 in zone 7. Forty nine stems were well aligned, 10 were in varus and 5 in valgus. Six patients presented with grade 1 stress shielding, 42 with grade 2, 9 with grade 3 and 7 with grade 4. Pedestal formation was evident in 13 cases. Kaplan-Meier survivorship estimates at 18 years with revision for any reason as the end point and with septic revisions excluded were 91.2% (95% CI: 83.7%-98.7%) and 95.1% (95% CI: 89.5%-100%), respectively. There was no difference between survival estimates of patients with different etiologies.

conclusionCLS stems in young patients have high survival estimates in the long term with good-excellent results. Spotorno stems perform equally well in all etiologies with no difference in terms of survivorship. LEVEL OF EVIDENCE: Level IV Therapeutic study.

Indexed as

Arthroplasty, Replacement, HipOsteolysisPostoperative ComplicationsProsthesis FailureAdultAgedFemaleFemoral Neck FracturesFollow-Up StudiesHip ProsthesisHumansMaleMiddle AgedProsthesis DesignRadiographyReoperationGruenHip arthroplastyOsteolysisSpotornoSurvivorship

Identifiers

PMID30583822
PMCPMC6424650
OpenAlexW2905638189

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.