Evidence map›Paper›PMID 41774119›Full record

Trial reportInternational orthopaedics2026

In stage II osteonecrosis, bone grafting delays femoral head collapse compared with core decompression in glucocorticoid-associated osteonecrosis of the femoral head.

Tanxiao Chen, Meiyi Chen, Yiyao Li, Deng Li, Zhiqing Cai, Hao Sun, Ruofan Ma, Jie Xu

Abstract readComparative StudyEquivalence TrialRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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.

Tanxiao ChenDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Meiyi ChenDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Yiyao LiDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Deng LiDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Zhiqing CaiDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Hao SunDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Ruofan MaDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China. maruofan@mail.sysu.edu.cn.
Jie XuDepartment of Orthopedics, Sun Yat-sen Memorial Hospital, Guangzhou, China. xujie2@mail.sysu.edu.cn.

Funding

the Science and Technology Planning Project of Guangzhou City No. 2021-KY-038the Sun Yat-Sen Memorial Hospital Clinical Research 5010 Program No. SYS-5010-202606the Sun Yat-Sen Pilot Scientific Research Fund No. SYSQH-II-2024-09; No. SYSQH-II-2026-07
6 · The paper itself

Abstract

purposeTo compare lesion debridement with bone grafting (LDBG) versus core decompression (CD) in preventing femoral head collapse in early glucocorticoid-associated osteonecrosis (GA-ONFH).

methodsThis single-center, superiority randomized controlled trial (Level I) enrolled 86 patients (18-60 years) with ARCO stage II GA-ONFH, randomized to CD or LDBG. PRIMARY OUTCOME: proportion maintaining ARCO stage II at 24 months. SECONDARY OUTCOMES: interval-specific progression to collapse (0-6, 6-12, 12-24 months) and Harris Hip Scores (HHS) among non-collapsed hips. Safety outcomes included perioperative blood loss, hospital stay, and surgery-related adverse events.

resultsOf 86 patients, 81 completed follow-up. At 24 months, ARCO stage II was maintained in 70% (28/40) of LDBG vs. 41% (17/41) of CD patients (P = 0.010; RR = 1.69; NNT = 4). CD had better HHS at six months (P < 0.001), but no difference at 12/24 months among non-collapsed hips. CD involved less blood loss (P < 0.001) and shorter hospital stays (P = 0.002); serious adverse events were similar (P = 0.72). Prespecified subgroup analyses showed consistent LDBG benefit, especially in females, patients with BMI < 23.9, high glucocorticoid dose, and non-manual occupations.

conclusionLDBG significantly reduces collapse risk versus CD in early GA-ONFH, with comparable mid-term function and safety, supporting its use as a preferred joint-preserving strategy, particularly for females, patients with lower BMI (< 23.9), high glucocorticoid exposure, and non-manual occupations.

Indexed as

Bone TransplantationDebridementDecompression, SurgicalFemur Head NecrosisGlucocorticoidsAdolescentAdultFemaleFemur HeadHumansMaleMiddle AgedTreatment OutcomeYoung AdultGlucocorticoidsCore DecompressionFemoral Head CollapseGlucocorticoid-Associated Osteonecrosis of the Femoral HeadLesion Debridement with Bone Grafting

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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.