Primary Hip Replacement vs. Revision Surgery: Key Differences

Aspect	Primary THA	Revision THA
Indication	End-stage arthritis, fracture	Failed primary: loosening, infection, dislocation, fracture, wear
Complexity	Standard	Higher—bone loss, scar tissue, implant removal
Bone Stock	Usually adequate	Often deficient → augments, allografts, specialized implants
Operative Time	1.5–3 hours	3–6+ hours
Complication Rate	Lower	Higher (infection, dislocation, fracture, nerve injury)
Recovery	Days–weeks hospital; PT 2–3 months	Longer hospitalization; PT 3–6 months
Outcome	Excellent: >95% 10-year survival	Good but lower: 80–90% 10-year survival

Revision surgery requires a surgeon with specialized reconstructive expertise. Meticulous pre-operative planning (CT, templating, infection workup) is critical for success.