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Orthopedics. 2005 May;28(5):463-9; quiz 470-1.

Use of constrained acetabular liners in total hip arthroplasty.

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Rubin Institute for Advanced Orthopaedics, Center for Joint Preservation and Reconstruction, Sinai Hospital of Baltimore, Baltimore, MD, USA.


The use of constrained acetabular liners is indicated when soft-tissue tensioning techniques such as femoral neck lengthening, component repositioning, and use of lateralized acetabular liner are ineffective. It is most commonly used as a salvage procedure in revision situations. However, a locking acetabular insert may be used for primary THAs in patients with joint or soft-tissue laxity, neuromuscular disease, or intraoperative instability. In addition to the described commercially available liners, several manufacturers will provide customized components on request.

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