The femoral head has collapsed, you have probably walked over this hip quiet a lot, in turn neglected and complicated the further.
The hip is not salvageable now, you need a Total Hip Replacement as Hip saving surgeries will be of no use here instead you will loose money like water
Best for you is a uncemented Total Hip Replacement
Next Steps
Consult online /physically for planning further management
Health Tips
Hip salvage is possible when femoral head has not collapsed or collapse is early.