Incidence and Risk Factors for Hip Displacement in Children with Cerebral Palsy under a 10-Year Surveillance Program

Incidence and Risk Factors for Hip Displacement in Children with Cerebral Palsy under a 10-Year Surveillance Program: A Retrospective Analytical Study at Queen Sirikit National Institute of Child Health

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20260223011

Enrollment

255

Registered

2026-02-23

Start date

2026-02-23

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

1.Cerebral Palsy 2.Hip Displacement (Hip Subluxation/Dislocation) Hip Displacement, Cerebral Palsy, Hip Surveillance, GMFCS, Migration Percentage

Interventions

Patients in the surveillance cohort who remained event-free throughout the follow-up period.,Patients in the surveillance cohort who experienced the primary outcome event during the follow-up period.

Screening,Screening

Successful hip outcome,Unsuccessful hip outcome

Eligibility

Sex/Gender

All

Age

No minimum to 18 Years

Inclusion criteria

Inclusion criteria: 1. Diagnosed with cerebral palsy (CP) of any subtype. 2. Underwent the initial anteroposterior (AP) pelvic radiograph for hip surveillance at QSNICH between January 1, 2016, and December 31, 2024. 3.Complete medical records available for analysis, including demographic data, GMFCS classification, and interpretable radiographic images.

Exclusion criteria

Exclusion criteria: 1.History of hip or pelvic surgery prior to the initial surveillance radiograph. 2.Presence of other neuromuscular conditions or syndromes affecting hip pathology (e.g., myelomeningocele, arthrogryposis). 3.Severe hip displacement (Migration Percentage > 40%) detected at the initial baseline assessment (already displaced at entry). 4.Incomplete clinical or radiological data preventing MP measurement.

Design outcomes

Primary

Measure	Time frame
Cumulative incidence of significant hip displacement. Assessed from enrollment up to 10 years follow-up Defined as the first radiographic detection of a Reimers' Migration Percentage more than 40 percent OR the event of undergoing hip reconstructive surgery.	—

Secondary

Measure	Time frame
Risk factors associated with hip displacement. Assessed over the follow-up period (up to 10 years). Analysis of Adjusted Hazard Ratios (aHR) for clinical predictors, specifically Gross Motor Function Classification System (GMFCS) levels (I-V), CP subtypes and presence of epilepsy.	—

Countries

Thailand

Contacts

Public ContactPattarapa Yamdee

Queen Sirikit National Institute of Child Health

y.pattarapa@gmail.com1415

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026