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Detecting Acetabulum Movement After Total Hip Arthroplasty From Serial Plain Radiographs

Detecting Acetabulum Movement After Total Hip Arthroplasty From Serial Plain Radiographs

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04779112
Enrollment
50
Registered
2021-03-03
Start date
2021-03-31
Completion date
2022-01-31
Last updated
2021-03-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthopedics

Brief summary

This study mainly measures the orientation of acetabulum cup post total hip arthroplasty. Using Liaw's Version, a new and accurate standardization method, investigators are trying to analyze acetabulum cup anterversion change postoperatively.

Detailed description

Patients undergoing total hip arthroplasty have generally good prognosis. However, clinically there was still a minority of patients who suffered from persistent postoperative pain. Dislocations of hip leading to revision surgeries were as well observed in some patients. This study mainly measures the orientation of acetabulum cup post total hip arthroplasty. Using Liaw's Version, a new and accurate standardization method, investigators are trying to analyze acetabulum cup anterversion change postoperatively. As previously known, the anteversion of acetabulum cup determines the range of motion, stability, and the function after total hip arthroplasty. Cup malalignment increase impingement, dislocation, cup migration, and polyethylene wear. Finding a pattern may help the early diagnosis of acetabular loosening.

Interventions

None listed

Sponsors

Taipei Medical University
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
40 Years to 85 Years

Inclusion criteria

* Patients undergone total hip arthroplasty * Patients undergone total hip arthroplasty with more than two postoperative X-ray plain films

Exclusion criteria

* Patients with postoperative periprosthetic fracture(s) * Patients with postoperative infection * Patients undergone revision total hip arthroplasty

Design outcomes

Primary

MeasureTime frameDescription
Analyze acetabulum cup anterversion change postoperatively1 weekUsing Liaw's Version, a new and accurate standardization method developed, investigators are trying to analyze acetabulum cup anterversion change postoperatively.

Contacts

Primary ContactChen-Kun Liaw
chenkunliaw@tmu.edu.tw+886963969162

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026