Anatomy / Ailment detail
The knee comprises the joint between the femur and the tibia but also the joint between the patella and the
front of the femur. Either or all of these parts of the knee may be affected by arthritis to various degrees.
The procedure of joint replacement includes removing the affected joint surfaces and replacing them with metal
components with a high-density polyethylene-bearing surface between the metal components. The metal components
are usually (but not always in special circumstances) cemented to the bone. If the patella is arthritic and a
patient complains of pain in the front of the knee or pain whilst walking on hills and stairs uni-compartmental
knee replacement is not usually appropriate and a total knee replacement may be more suitable. Using newly
developed techniques joint replacement may be undertaken using minimal access surgery utilising much smaller
incisions than previously utilised. This assists with rapid recovery and return of function.
Who Needs it / Who Doesn't
The symptomatic arthritic patients with pain deformity or a restricted function are those, which should consider
The symptoms include knee pain, restricted function and walking ability and increasing stiffness or deformity of
the knee. Sometimes pain from an arthritic knee may be felt in the thigh or hip area. Alternately in some patients
the pain may only be moderate and knee stiffness, deformity, instability may be the principal complaint. Function
may be limited in that walking may be restricted or activities such as golf or bowling may be difficult. These
problems may also promote patients to consider knee replacement.
How to arrange an appointment with Mr. Johnson
Your first appointment is usually arranged with Mr Johnson at the Bristol Nuffield
Hospital at St Mary's. It is a modern well-equipped hospital with 36 private bedrooms and two operating
theatres, and offers a full range of services.