Osteoarthritis of the hip — surgical management

A 68-year-old man with a 12-year history of osteoarthritis of the left hip presents with progressive pain and functional limitation. Plain radiographs show advanced degenerative changes with joint space narrowing, osteophyte formation, and subchondral sclerosis. He has failed conservative management including NSAIDs, physiotherapy, and intra-articular corticosteroid injections over the past 18 months. On examination, he has limited hip flexion (80°), abduction (15°), and internal rotation (5°). Which of the following surgical interventions would provide the most durable long-term outcome with the lowest revision rate in this patient?