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Study on Predicting Femoral Head Collapse Risk in Osteonecrosis Based on Lateral Retained Angle

Development of a Predictive Model for Femoral Head Collapse Risk Based on Lateral Retained Angle in ARCO Stage II Osteonecrosis of the Hip: A Retrospective Cohort Imaging Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500109889
Enrollment
Unknown
Registered
2025-09-26
Start date
2025-10-08
Completion date
Unknown
Last updated
2025-09-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteonecrosis of the femoral head

Interventions

Case series:none

Sponsors

The Third Affiliated Hospital of Guangzhou University of Chinese Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Patients diagnosed with osteonecrosis of the femoral head (ONFH); 2. Complete anterior-posterior, frog-leg lateral X-ray, CT, and MRI imaging data available at the time of initial consultation; 3. Femoral head classified as Stage I or Stage II according to the ARCO staging system; 4. Follow-up duration of more than 2 years.

Exclusion criteria

Exclusion criteria: 1. Presence of other diseases affecting the hip joint (e.g., hip dysplasia or rheumatoid arthritis); 2. Patients who have undergone hip joint preservation surgery prior to the study.

Design outcomes

Primary

MeasureTime frame
Collapse progression;ROC curve;—

Countries

China

Contacts

Public ContactFan Yang

The Third Affiliated Hospital of Guangzhou University of Chinese Medicine

yang_fan1993@163.com+86 20 22292751

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026