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Correlation of Spinopelvic Parameters and Acetabular Cup Orientation

NCT02598700 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 37

Last updated 2019-06-07

No results posted yet for this study

Summary

In total hip arthroplasty, cup anteversion is an important factor in stability. Lewinnek's safe zone and functional anteversion are often used to assess appropriate orientation. However, these approaches do not consider the effect of the spinopelvic chain and lumbar mobility when in the seated position. This study will measure functional anteversion when standing and sitting with patient-specific computer models and define a quantitative relationship between the change in functional anteversion and spinopelvic parameters. This will challenge the historical paradigm of the safe zone and provide a tool to define anteversion based on a patient's mechanics and reduce risk of dislocation.

Conditions

  • Hip Osteoarthritis
  • Complications; Arthroplasty

Sponsors & Collaborators

Principal Investigators

  • Thorsten Seyler, MD · Duke University

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-02-29
Primary Completion
2018-10-31
Completion
2018-10-31

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02598700 on ClinicalTrials.gov