Evidence map›Paper›PMID 31703710›Full record

ArticleJournal of orthopaedic surgery and research2019

Risk factors for implant failure in reverse oblique and transverse intertrochanteric fractures treated with proximal femoral nail antirotation (PFNA).

Youliang Hao, Zhishan Zhang, Fang Zhou, Hongquan Ji, Yun Tian, Yan Guo, Yang Lv, Zhongwei Yang, Guojin Hou

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 75 citations in OpenAlex.

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  13. Posterolateral wall integrity in reverse oblique intertrochanteric fracture fixation: A new perspective in evaluation.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2024
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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 2 institutions in 1 country.

Youliang HaoDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Zhishan ZhangDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Fang ZhouDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China. zhouf@bjmu.edu.cn.
Hongquan JiDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Yun TianDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Yan GuoDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Yang LvDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Zhongwei YangDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Guojin HouDepartment of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing, 100191, China.
Peking University Third Hospital · CNPeking University · CN

Funding

Peking University Third Hospital Y62419-06
6 · The paper itself

Abstract

backgroundThe incidence of intertrochanteric hip fracture is expected to increase as the global population ages. It is one of the most important causes of mortality and morbidities in the geriatric population. The incidence of reverse oblique and transverse intertrochanteric (AO/OTA 31-A3) fractures is relatively low; however, the incidence of implant failure in AO/OTA 31-A3 fractures is relatively high compared with that in AO/OTA 31-A1 and A2 fractures. To date, the risk factors for implant failure in AO/OTA 31-A3 fractures treated with proximal femoral nail antirotation (PFNA) have remained ambiguous. The purpose of this study was to identify the predictive factors of implant failure in AO/OTA 31-A3 fractures treated with PFNA.

methodsThe data of all patients who underwent surgery for trochanteric fractures at our institution between January 2006 and February 2018 were retrospectively reviewed. All AO/OTA 31-A3 fractures treated with PFNA were included. Logistic regression analysis of potential predictors of implant failure was performed. Potential predictors included age, sex, body mass index, fracture type, reduction method, status of posteromedial support and lateral femoral wall, reduction quality, tip-apex distance and position of the helical blade in the femoral head.

resultsOne hundred four (9.3%) patients with AO/OTA 31-A3 fractures were identified. Forty-five patients with AO/OTA 31-A3 fractures treated with PFNA were suitable for our study. Overall, implant failure occurred in six (13.3%) of forty-five patients. Multivariate analysis identified poor reduction quality (OR, 28.70; 95% CI, 1.91-431.88; p = 0.015) and loss of posteromedial support (OR, 18.98; 95% CI, 1.40-257.08; p = 0.027) as factors associated with implant failure.

conclusionsPoor reduction quality and loss of posteromedial support are predictors of implant failure in reverse oblique and transverse intertrochanteric fractures treated with PFNA.

Indexed as

RotationAdultAgedAged, 80 and overBone NailsFemaleFemurHip FracturesHumansMaleMiddle AgedProsthesis FailureProsthesis ImplantationRetrospective StudiesRisk FactorsYoung AdultAO/OTA 31-A3 fracturesImplant failurePFNAReverse oblique intertrochanteric fracturesRisk factors

Identifiers

PMID31703710
PMCPMC6842253
OpenAlexW2987695184

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.