Congenital dislocation of the hip over a ten-year period

Area of Science:

• Orthopaedic surgery
• Neonatal screening programs
• Pediatric orthopaedics

Background:

• Congenital dislocation of the hip (CDH) is a significant pediatric orthopaedic condition.
• Early detection and intervention are crucial for optimal outcomes in CDH.
• Neonatal screening programs aim to identify CDH at birth to prevent long-term complications.

Purpose of the Study:

• To evaluate the effectiveness of a Malmo type neonatal screening program for CDH.
• To assess the long-term outcomes of CDH treatment initiated in the neonatal period.
• To determine the success rate of early intervention in preventing established late CDH.

Main Methods:

• A Malmo type neonatal screening program for CDH was implemented in New Plymouth from 1964 to 1975.
• The program included 10,103 births with a complete 11-year follow-up.
• Treatment involved a Von Rosen type splint for six weeks, initiated within seven days of birth.

Main Results:

• Early treatment with a Von Rosen splint prevented established late CDH in 92% of cases.
• Follow-up X-rays at five and 10 years demonstrated good hip development in treated infants.
• Two cases of subluxation at six months were observed, suggesting a potential need for longer splintage.

Conclusions:

• Neonatal screening and early splinting are highly effective in preventing established CDH.
• The Von Rosen splint treatment, initiated within seven days of birth, shows a high success rate.
• Further research into optimal splintage duration may be warranted to address residual subluxation.