Detecting Acetabulum Movement After Total Hip Arthroplasty From Serial Plain Radiographs

Taipei Medical University

Status: Unknown

Conditions: Orthopedics

Study type: Observational

Funder types: Other

Identifiers

NCT04779112

N201912060

Details and patient eligibility

About

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.

Full 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.

Enrollment: 50 estimated patients

Sex: All

Ages: 40 to 85 years old

Volunteers: No Healthy Volunteers

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