Low Friction Arthroplasty of the Hip

1. Front Matter

   Pages I-XII

   PDF

2. Introduction

   • John Charnley

   Pages 1-2

3. Low Friction Principle

   • John Charnley

   Pages 3-15

4. Organisation of Follow-Up

   • John Charnley

   Pages 16-19

5. Numerical Grading of Clinical Results

   • John Charnley

   Pages 20-24

6. Cement-Bone Interface

   • John Charnley

   Pages 25-40

7. Long-Term Clinical Results

   • John Charnley

   Pages 41-65

8. Long-Term Radiological Results

   • John Charnley

   Pages 66-90

9. Hip Sockets — Theory

   • John Charnley

   Pages 91-106

10. Types of LFA Hip Socket

    • John Charnley

    Pages 107-110

11. Femoral Prostheses — Theory

    • John Charnley

    Pages 111-124

12. Types of LFA Femoral Prostheses

    • John Charnley

    Pages 125-133

13. Pre-operative Measurement of X-Rays

    • John Charnley

    Pages 134-139

14. Detachment and Reattachment of the Great Trochanter

    • John Charnley

    Pages 140-151

15. Clean Air Operating — Theory

    • John Charnley

    Pages 152-168

16. Clean Air Operating — Practice

    • John Charnley

    Pages 169-183

17. Technique of Low Friction Arthroplasty of the Hip

    • John Charnley

    Pages 185-289

18. Femoral Neck-Length Jig

    • John Charnley

    Pages 290-301

19. Post-operative Management

    • John Charnley

    Pages 302-307

20. Thrombo-embolic Complications

    • John Charnley

    Pages 308-313

The theme of this work is the application of the engmeermg theory of frictional torque to total hip replacement. The author adhered tenaciously to this theory, involving the use of a small-diameter femoral head, throughout the epoch when the large-diame­ ter, metal-to-metal design dominated the field. During that considerable period general satisfaction with the early results rendered criticisms of the large-diameter head unwelcome. There was a formidable array of counter­ criticism: the small head would pierce a film of synovial fluid; the small head would wear the socket too rapidly; the small head would always have a high risk of dislocation; detachment of the trochanter, to achieve precise orientation for the small head, was unacceptable. But all these objections have now been largely overcome. Lubrication of high molecular weight polyethylene (HMWP) on metal is now accepted as being mainly by the boundary regime with thick fluid films playing no part. We now know that HMWP can indeed tolerate the very high stresses imposed by the small head and in tribological theory there may even be some advantage in high stress. Dislocation is now known not to be an automatic sequel to the small head.

• Hüftgelenk
• Hüftgelenkprothese
• Instrument
• arthroplasty
• biomechanics
• complication
• head
• hip
• hip arthroplasty
• stress

• University of Manchester, UK

  John Charnley

• Centre for Hip Surgery, Wrightington Hospital, Wigan, Lancashire, England

  John Charnley

• King Edward VII Hospital, Midhurst, Sussex, UK

  John Charnley

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