- specific indications include significant extremity shortening, significant extremity shortening, multidirectional instability, recurrent instability following revision, neurologic disorder;
- constrained acetabular component:
- complications:
- fatigue fracture of the constraining ring (due to chronic impingement of constraining ring against the neck of femoral componet
- dislocation following the insertion of a constrained liner will require open reduction;
- references:
- Salvage of a recurrently dislocating total hip prosthesis with use of a constrained acetabular component. A retrospective analysis of fifty-six cases.
- Failure of a constrained acetabular prosthesis of a total hip arthroplasty. A report of four cases.
Biomet Freedom® Constrained Liner
The use of a constrained acetabular component for recurrent dislocation.
Constrained acetabular liners: mechanisms of failure.
The use of a constrained acetabular component to treat instability after total hip arthroplasty.
The role of constrained liners in total hip arthroplasty.
The Long-term Outcome of 755 Consecutive Constrained Acetabular Components in Total Hip Arthroplasty