Length |
30–75 mm |
>75 mm |
Fixation |
Generally cemented |
Generally uncemented |
Advantages |
Small adjustments possible in medial/lateral and anterior/posterior directions |
Diaphyseal referencing to help with component alignment |
Avoids limb deformity or ipsilateral hardware |
Easier to remove if revision required |
Less end-of-stem pain |
Applicable in patients with previous distal femoral or proximal tibial osteotomy |
Disadvantages |
Difficult to remove, can lead to more bone loss |
End-of-stem pain |
Decreased references for proper component alignment |
Without offset options can force articular components into suboptimal position |
|
Risk of periprosthetic fracture with canal preparation |
|
May not be applicable in setting of dysplasia or ipsilateral hardware |