History of Hip Replacement — The Operation of the Century

Part of The Joint Replacement Guide — Phase 4: The Operation · Article 19 of 42 · Hip

Key Points

  • Modern hip replacement traces back to the pioneering work of Sir John Charnley at Wrightington Hospital in the 1960s.
  • Charnley’s “low-friction arthroplasty” combined a smaller femoral head, bone cement fixation, and a durable plastic bearing — the template for the operation still used today.
  • Total hip replacement has been described in leading medical literature as “the operation of the century” because of its consistent, transformative impact on quality of life.
  • National joint registries, tracking outcomes at national scale, have been one of the most important safety developments since Charnley’s era.

Before Charnley

Surgeons had been attempting to treat severe hip arthritis for well over a century before the modern hip replacement was developed. Early approaches included interposition arthroplasty — placing various materials, including animal membrane, metal, or even glass, between the worn joint surfaces to try to restore some pain-free movement — and early attempts at metal prostheses in the first half of the twentieth century. None of these approaches achieved reliable, durable, long-term results, and hip arthritis remained a source of major, often disabling, chronic pain for most patients until the second half of the twentieth century.

Sir John Charnley and the Low-Friction Arthroplasty

Working at Wrightington Hospital in Lancashire through the 1960s, the British orthopaedic surgeon Sir John Charnley developed what became the foundation of modern total hip replacement — the low-friction arthroplasty. His central insight was that reducing the size of the femoral head reduced frictional torque at the joint, improving the longevity of the bearing surfaces. He initially used PTFE (the material also known as Teflon) as the bearing material, but this famously wore out far more quickly than expected in early patients, leading him to switch to high-density polyethylene, which performed dramatically better and remains, in more advanced modern forms, in use today. He also pioneered the use of PMMA bone cement to anchor the implant securely to bone. This combination — a small metal femoral head, a polyethylene socket, and cement fixation — became the template on which the vast majority of subsequent hip replacement design has been built.

Why “Operation of the Century”

Total hip replacement has been described in prominent medical literature, including The Lancet, as one of the most successful surgical interventions of modern medicine — sometimes explicitly labelled “the operation of the century.” This reputation reflects the rare combination of a high success rate, remarkable reproducibility across different surgeons and hospitals, relatively low complication rates, and a genuinely transformative effect on pain and quality of life for the overwhelming majority of patients who undergo it.

Evolution Since Charnley

Since the 1960s, hip replacement has continued to evolve substantially: improved bearing materials such as ceramic and highly cross-linked polyethylene (covered in a dedicated article later in this phase), the development of reliable uncemented, bone-ingrowth fixation as an alternative to cement, a range of surgical approaches offering different trade-offs (also covered shortly), and, more recently, computer navigation and robotic-assisted surgery. The fundamental principles Charnley established, however — restoring a stable, low-friction, durable joint — remain at the heart of every modern hip replacement performed today.

In More Depth

One of the most significant developments since Charnley’s era has been the introduction of national joint registries — starting with the Swedish Hip Arthroplasty Register in the 1970s, and followed by the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man, established in 2003. By systematically tracking outcomes for essentially every hip and knee replacement performed, these registries allow poorly performing implants and techniques to be identified and withdrawn far more quickly than would otherwise be possible, and allow genuine, real-world, large-scale evidence — rather than smaller trials alone — to guide implant and technique selection. This registry infrastructure is arguably one of the most important patient safety developments in orthopaedic surgery since Charnley’s original innovation, and is discussed further in the final phase of this guide.

This article is general information and does not replace individual clinical advice.

Sources

  • British Orthopaedic Association — history of orthopaedic surgery resources
  • National Joint Registry — history and Annual Report
  • The Lancet — historical commentary on total hip replacement

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