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Total hip modularity: truth and consequences.

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Updated: Mar 27, 2026

Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments
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The dual mobility cup: what problems does it solve?

L Matsen Ko1, W J Hozack1

  • 1Rothman Institute Orthopaedics, Egg Harbor Township, New Jersey, 08234, USA.

The Bone & Joint Journal
|January 7, 2016
PubMed
Summary
This summary is machine-generated.

Dual mobility cups in total hip arthroplasty (THA) offer enhanced stability and may reduce dislocation risk. They are beneficial for high-risk patients and complex revision surgeries.

Keywords:
DislocationDual MobilityPrimary Total Hip ArthroplastyRevision Total Hip Arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Total hip arthroplasty (THA) dislocation is a significant cause of morbidity and healthcare costs.
  • Dual mobility cups feature two articulation points, enhancing range of motion and potentially improving stability.

Purpose of the Study:

  • To review the application of dual mobility cups in THA.
  • To evaluate their efficacy in reducing dislocation risk, particularly in complex cases.

Main Methods:

  • Review of literature on dual mobility cup usage in THA.
  • Analysis of clinical scenarios where stability is a primary concern.

Main Results:

  • Dual mobility cups may reduce dislocation rates in primary THA for high-risk patients (elderly, comorbidities, neuromuscular disease).
  • They are indicated in revision THA with high dislocation risk (prior dislocations, abductor deficiency).
  • Considered for THA in displaced femoral neck fractures due to high dislocation rates.

Conclusions:

  • Dual mobility cups are a valuable option for improving stability and reducing dislocation in specific THA patient populations.
  • Their use is particularly relevant in revision arthroplasty and complex primary cases.