Overview
Core decompression reduces pressure and improves blood flow to the femoral head.

Indications
Early avascular necrosis before collapse.

How it is done
A channel is drilled into the femoral head, sometimes with bone graft.

Risks and considerations
Progression to collapse may still occur.

Recovery timeline
Protected weight bearing for several weeks; recovery varies.

When to seek care
Persistent pain or new limp needs evaluation.