Prevention of spastic paralytic dislocation of the hip

Area of Science:

• Pediatric Orthopedics
• Cerebral Palsy Research
• Biomechanical Engineering

Background:

• Spastic cerebral palsy (CP) frequently leads to hip joint complications, including subluxation and dislocation.
• Early detection and intervention are crucial for managing hip instability in children with CP.
• Soft-tissue surgical procedures are commonly employed to address hip subluxation in this population.

Purpose of the Study:

• To evaluate the effectiveness of isolated soft-tissue surgical procedures in managing early hip subluxation in children with spastic cerebral palsy.
• To determine the efficacy of specific procedures, namely adductor tenotomy with or without anterior branch obturator neurectomy, and adductor tenotomy combined with iliopsoas recession.
• To assess the ability of these interventions to prevent further hip subluxation and dislocation.

Main Methods:

• A retrospective review was conducted on 99 children diagnosed with spastic cerebral palsy and early hip subluxation.
• Surgical interventions included adductor tenotomy, with or without anterior branch obturator neurectomy, or adductor tenotomy in conjunction with iliopsoas recession.
• Surgical outcomes and radiographic changes, specifically femoral head uncovering, were analyzed.

Main Results:

• Adductor tenotomy combined with anterior branch obturator neurectomy yielded poor results in 64% of cases.
• The success rate for patients undergoing adductor tenotomy with iliopsoas recession was 72%.
• Radiographic evidence indicated that 80% of patients who had iliopsoas recession experienced halted or improved femoral head uncovering.

Conclusions:

• Adductor tenotomy alone or with anterior obturator neurectomy is less effective for managing hip subluxation in spastic cerebral palsy.
• The addition of iliopsoas recession to adductor tenotomy significantly improves surgical success rates and radiographic outcomes.
• Iliopsoas recession appears to be a key component in preventing the progression of hip subluxation and improving femoral head coverage in this patient group.