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[Relationship between time of ossification center appearance and hip joint development stage using Graf's method]
1Pracowni Diagnostyki Preluksacyjnej Szpitala Miejskiego Nr 2 w Rudzie Slaskiej.
Chirurgia Narzadow Ruchu I Ortopedia Polska
|January 1, 1996
Summary
This study found females develop ossification centers earlier than males. A delayed appearance of these centers is linked to hip dysplasia, indicating potential developmental issues.
Area of Science:
- Pediatric Orthopedics
- Developmental Biology
- Medical Imaging
Background:
- Hip dysplasia diagnosis relies on skeletal development assessment.
- Ossification center appearance timing is a key indicator of skeletal maturity.
- Graf classification is a standard for assessing hip development in infants.
Purpose of the Study:
- To correlate the timing of ossification center appearance with Graf developmental stages.
- To investigate sex-based differences in ossification timing.
- To determine the relationship between delayed ossification and hip dysplasia.
Main Methods:
- Retrospective analysis of 4546 sonograms in infants (1-6 months) and 1252 sonograms in newborns.
- Assessment of ossification center appearance and Graf classification.
- Statistical analysis to identify correlations.
Main Results:
- Females showed earlier ossification center appearance (7 weeks) compared to males (10 weeks).
- A statistically significant association was found between delayed ossification center appearance and hip dysplasia.
- Delays exceeding 6 months suggest significant pathology and potential complications.
Conclusions:
- Early ossification in females is a normal developmental finding.
- Delayed ossification center appearance is a predictor of hip dysplasia.
- Monitoring ossification timing is crucial for early detection of hip developmental abnormalities.