Heterotopic ossification in children after iliopsoas release

Area of Science:

• Orthopedic surgery
• Pediatric orthopedics
• Radiology

Background:

• Perthes' disease is a hip condition affecting children.
• Adductor tenotomy with iliopsoas release is a surgical procedure used in certain orthopedic conditions.
• Heterotopic ossification involves abnormal bone formation in soft tissues.

Purpose of the Study:

• To investigate the occurrence of heterotopic ossification adjacent to the lesser trochanter.
• To explore a potential association between this ossification and prior surgical interventions.

Main Methods:

• Retrospective radiographic review of patients with Perthes' disease.
• Identification of patients with heterotopic ossification.
• Review of surgical histories, specifically iliopsoas release as part of adductor tenotomy.

Main Results:

• Heterotopic ossification near the lesser trochanter was identified in 4 out of 68 patients with Perthes' disease.
• The abnormality was subsequently observed in one additional Perthes' disease patient and five patients with spastic quadriplegia.
• All 10 identified patients had undergone iliopsoas release as part of adductor tenotomy.

Conclusions:

• The study suggests a correlation between iliopsoas release surgery and the development of heterotopic ossification.
• Further research may be warranted to understand the mechanism and clinical significance of this association.