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Core decompression in avascular necrosis of the hip in sickle-cell disease
1Department of Hematology/Oncology, Children's Hospital Oakland, California, USA.
Insights
Core decompression surgery offers significant pain relief for children with sickle cell disease (SCD) and early avascular necrosis (AVN) of the hip. This procedure may help arrest AVN progression and avoid further surgeries.
Area of Science:
- Orthopedics
- Pediatric Hematology
- Regenerative Medicine
Background:
- Sickle cell disease (SCD) is the leading cause of childhood avascular necrosis (AVN) of the hip.
- AVN in SCD causes severe pain, physical disability, and often necessitates hip replacement.
- Current conservative treatments for AVN in SCD are largely ineffective.
Purpose of the Study:
- To evaluate the efficacy of core decompression in halting the progression of hip AVN in pediatric SCD patients.
- To assess the impact of core decompression on pain, radiographic changes, and the need for subsequent surgical intervention.
Main Methods:
- A cohort of 10 patients (13 hips) with SCD and hip AVN underwent core decompression procedures.
- Patients were stratified by AVN stage (I, II, or III) at diagnosis.
- Follow-up included clinical assessment of pain, radiographic evaluation of AVN progression, and monitoring for further surgical needs over a mean of 3.7 years.
Main Results:
- All 5 patients with Stage I AVN experienced significant pain improvement, with only one showing radiographic progression.
- 83% (5/6) of Stage II AVN patients reported pain relief, though 2 progressed radiographically.
- Both Stage III AVN patients showed radiographic progression, but one achieved clinical pain improvement. No patient required further surgery.
Conclusions:
- Core decompression demonstrates significant clinical benefit in managing early-stage avascular necrosis of the hip in children with sickle cell disease.
- The procedure should be strongly considered as a therapeutic option for SCD patients presenting with early AVN, potentially preventing long-term complications and the need for hip replacement.
Abstract:
Sickle-cell disease (SCD) is the most common cause of avascular necrosis (AVN) of the hip in childhood. It results in significant physical impairment and chronic pain, and often progresses to require hip replacement. Conservative therapy is ineffective. We evaluated whether core decompression can arrest progression of AVN. We performed 13 coring procedures in 10 patients with SCD and AVN. Patients ranged from age 9-21 years at diagnosis (mean, median age, 15 years); five hips were stage I, six hips were stage II, and two hips were stage III. Mean follow-up on these patients was 3.7 years. Efficacy of the procedure was evaluated by clinical improvement in pain, radiographic progression, and need for further surgery. All 5 stage I patients had substantial improvement in pain, and only one showed X-ray progression. Five of the 6 (83%) stage II patients had improvement in pain, and 2 patients progressed on X-ray. Both stage III patients progressed on X-ray, but one was clinically improved. None of the 10 patients has required further surgery. Our results demonstrate that in early AVN, core decompression was beneficial for almost all patients, even with progression on X-ray. Core decompression should be considered in the management of SCD patients with early AVN.