Evidence map›Paper›PMID 32227469›Full record

ArticleOrthopaedic surgery2020

Risk of Dislocation After Total Hip Arthroplasty in Patients with Crowe Type IV Developmental Dysplasia of the Hip.

Zi-Chuan Ding, Wei-Nan Zeng, Ping Mou, Zhi-Min Liang, Duan Wang, Zong-Ke Zhou

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In one paragraph

Article in Orthopaedic surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
–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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  18. Narrative Review of the Mechanism of Hip Prosthesis Dislocation and Methods to Reduce the Risk of Dislocation.Medical science monitor : international medical journal of experimental and clinical research · 2022
    Review
  19. [Three-dimensional morphological study of the effect of false acetabulum on the femoral structure in Crowe typeZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive 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

6 authors.

Zi-Chuan DingDepartment of Orthopaedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.
Wei-Nan ZengDepartment of Orthopaedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.
Ping MouDepartment of Orthopaedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.
Zhi-Min LiangClinic Research Management Department, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.
Duan WangDepartment of Orthopaedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.
Zong-Ke ZhouDepartment of Orthopaedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China.ORCID https://orcid.org/0000-0002-9037-4756

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate whether the risk of dislocation after total hip arthroplasty (THA) in patients with Crowe type IV developmental dysplasia of the hip (DDH) is high and to further identify the risk factors for postoperative dislocation in these patients.

methodsThis retrospective cohort study reviewed Crowe type IV DDH patients undergoing THA between January 2009 and December 2017 in our institution. Each Crowe type IV DDH patient was matched with three Crowe type I, II, or III DDH patients according to gender, side and date of operation. The primary outcome of this study was postoperative dislocation after THA. Occurrence, rate, classification, treatment and outcome of dislocation were documented in detail for all patients. The dislocation rates were compared between Crowe type IV DDH patients and Crowe type I, II, or III DDH patients. Demographic data, implant factors, and surgical factors were compared between the dislocation and no dislocation groups. Multiple logistic regression analysis was used to determine the independent risk factors for dislocation in Crowe type IV hips.

resultsA total of 131 Crowe type IV hips were followed up for a mean of 76.5 ± 28.1 months. Three hundred and ninety-three Crowe type I, II and III hips, including 261 type I hips, 94 type II hips, and 38 type III hips, were identified as controls and followed up for a mean of 76.4 ± 28.2 months. No significant difference was observed in follow-up time between two groups (P = 0.804). One or more dislocations occurred in 22 of the 524 dysplasia hips (4.20%). Of the 22 dislocated hips, 20 hips (90.9%) were successfully managed with non-operative treatment. Two patients (9.1%, one Crowe type I and one Crowe type IV) experienced recurrent dislocation and required revision surgery. Crowe type IV hips had a significantly higher postoperative dislocation rate than type I, II, and III hips (11.45% vs 1.78%, P < 0.001). The use of a 22-mm femoral head (odds ratio [OR] = 23.55, 95% confidence interval [CI] = 1.901-291.788, P = 0.014), older age (OR = 1.128, 95% CI = 1.037-1.275, P = 0.031), and absence of false acetabulum (OR = 12.425, 95% CI = 1.982-77.879, P = 0.007) were identified as independent risk factors for dislocation in Crowe type IV hips.

conclusionsCrowe type IV DDH patients were at a high risk of dislocation after THA, and using large femoral heads and improving abductor muscle strength may help decrease the rate of postoperative dislocation in such patients.

Indexed as

Arthroplasty, Replacement, HipAdultAgedFemaleHip Dislocation, CongenitalHumansJoint DislocationsMaleMiddle AgedPostoperative ComplicationsRetrospective StudiesDevelopmental dysplasia of the hipPostoperative dislocationTotal hip arthroplasty

Identifiers

PMID32227469
PMCPMC7189031

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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.