• 
  
• so    an    examination   of   those   regions   is   mandatory.    A    eonip!r'_a-neurovascular examination of the extremities should be performed (10,.
  XII-Examination of the knee :
  Hxamination of the knee should include an assessment of the quality, color, temperature of the skin near the incision, an assessment of iSu­stains of the incision, and a determination of the presence or absence of an effusion (101.
  The stability of the total knee replacement should be evaluated., and the overall alignment of the extremity and the alignment of the foot should be recorded (10).
  2-Radiological
  Radiological methods of detecting loosening with or without infection have included plain radiography, arthrography and radionuclide studies
  (83).
  The clinical need for revision may be predicted radiologicaliy 3 years after operation in symptomless patients by noting a change in component position combined with progressive radiolucent lines and osteolysis. Thus, radiological follow-up should be continued for a minimum of 3 years after knee replacement (53).
  The use of a stem enabled the detection of raclioluccnt lines which \ve believe were missed around prosihes'es with condylar pegs. Thus, (lie use of a stem improves the prediction" of failure (but does not improve fixation) (63).