Evidence map›Paper›PMID 33836698›Full record

ArticleBMC musculoskeletal disorders2021

Risk factors of ankle osteoarthritis in the treatment of critical bone defects using ilizarov technique.

Kai Liu, Feiyu Cai, Yanshi Liu, Alimujiang Abulaiti, Peng Ren, Aihemaitijiang Yusufu

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 29% 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

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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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 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

6 authors at 2 institutions in 1 country.

Kai Liu *Department of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China.
Feiyu Cai *Department of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China.
Yanshi LiuDepartment of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China.
Alimujiang AbulaitiDepartment of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China.
Peng RenDepartment of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China. rpsky@126.com.
Aihemaitijiang YusufuDepartment of Trauma and Microreconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, Xinjiang, China. ahmatjang@163.com.
First Affiliated Hospital of Xinjiang Medical University · CNXinjiang Medical University · CN

Funding

National Natural Science Foundation of China NO. 81560357Natural Science Foundation of Xinjiang NO.2020D01C250
6 · The paper itself

Abstract

backgroundDistraction osteogenesis using the Ilizarov external circular fixator has been applied in lower limb reconstructive surgery widely. The increasing ankle osteoarthritis (OA) progression and severity are often associated with the period of external fixator and the greater relative instability of the ankle joint, but few studies have quantified risk factors directly during this technique.

methodsThe study was conducted on 236 patients who underwent bone transport surgery for tibias using the Ilizarov external circular fixator from 2008 to 2018. The cumulative incidence of ankle OA diagnoses in patients after the Ilizarov technique treatment was calculated and stratified by risk factors from preoperative and postoperative management. After the data were significant through the Mann-Whitney U test analyzed, odds ratios were calculated using logistic regression to describe factors associated with the OA diagnosis including gender, age, BMI, location of bone defect, diabetes, hypertension, osteoporosis, the history of metal allergy and glucocorticoid intake, the American Orthopaedic Foot & Ankle Society (AOFAS) ankle-HF scale scores, defect size (DS), the type of bone transport, the bone union time, external fixator time (EFT), and external fixator index (EFI).

resultsThere were 199 males and 37 females with a mean age of 47 years (range 28-59 years). Out of 236 patients, 49 had an additional treatment for ankle OA after the Ilizarov technique treatment of bone defects (average follow-up time 2.1 years, range 1.6-4.2 years). The incidence of postoperative ankle OA was 20.8 %, with 19 patients classified as K&L grade 3 and seven patients as grade 4. The top five risk factors included double-level bone transport (OR3.79, P = 0.005), EFI > 50days/cm (OR3.17, P = 0.015), age > 45years (OR2.29, P = 0.032), osteoporosis (OR1.58, P < 0.001), BMI > 25 (OR1.34, P < 0.001). Male, BMI > 25, diabetes, osteoporosis, and AOFAS ankle-HF scale scores are the independent risk factors.

conclusionsIlizarov external circular fixator is a safe and effective method of treatment for critical bone defects. The double level bone transport, EFI > 50days/cm, age > 45years, osteoporosis, BMI > 25 are the top five relevant risk factors of ankle OA. The probability of developing ankle OA among patients having three or more risk factors is 50-70 %.

Indexed as

Ilizarov TechniqueOsteoarthritisAdultAnkleAnkle JointExternal FixatorsFemaleHumansMaleMiddle AgedRisk FactorsTreatment OutcomeBone defectBone transportIlizarov techniqueJointOsteoarthritis

Identifiers

PMID33836698
PMCPMC8035717
OpenAlexW3151154862

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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.