Total Hip Arthroplasty: Fluoroscopy vs Freehand

A Randomized, Monocentric Investigator-initiated Clinical Investigation Comparing Fluoroscopy Versus Freehand in Total Hip Arthroplasty

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05653687

Enrollment

Registered

2022-12-16

Start date

2023-05-22

Completion date

2028-03-01

Last updated

2026-09-11

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

Conditions

Intraoperative Fluoroscopy

Brief summary

The aim of the study is to compare total hip arthroplasty intervention executed with or without the use of intraoperative fluoroscopy in terms of positioning of the hip prosthesis. The comparison will be made on post-operative follow-up X-ray performed as per clinical practice, in order to verify if intraoperative fluoroscopy provides better prosthesis components positioning or not.

Interventions

DEVICEIntraoperative fluoroscopy

Fluoroscopy is a medical procedure that makes a real-time video of the movements inside a part of the body by passing x-rays through the body over a period of time.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 90 Years

Healthy volunteers

Inclusion criteria

* Patients undergoing unilateral primary THA through DAA * Patients aged 18-90 years old. * Patients with a BMI \>18 and \<35. * Patients able to provide informed consent. * Informed consent as documented by signature.

Exclusion criteria

* Revision THA. * Women who are pregnant or breast feeding. * Presence of other clinically significant concomitant disease states (ASA IV). * Previous enrolment into the current study. * Enrolment of the investigator, his/her family members, employees and other dependent persons.

Design outcomes

Primary

Measure	Time frame	Description
Acetabular component anteversion	2 months post-operative	Acetabular component anteversion will be measured on post-operative control antero-posterior pelvis view X-ray performed as per clinical practice using the PACS software according to the method described by Lewinnek et al. This method is based on the following equation to measure radiographic anteversion β. β = arcsin(S/L) Where S is the length of the short axis and L is the length of long axis of the ellipse. The ellipse is formed by the outer ring of the acetabulum component on the anteroposterior pelvis view X-ray.

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 12, 2026