Acetabular cup placement in participants requiring total hip replacement or hip resurfacing surgery using the MACNAV navigation system.

A multicentre, randomised, pilot clinical trial to assess the accuracy of acetabular cup positioning using the MACNAV system versus standard positioning techniques in participants requiring hip replacement

Status

Terminated

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12612000243819

Enrollment

Registered

2012-02-27

Start date

2013-03-14

Completion date

2014-08-25

Last updated

2020-02-03

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

Conditions

None listed

Brief summary

The purpose of the study is to assist surgeons in aligning the acetabular cup in the acetabulum. By having a better alignment there is a potential for a reduction in post operative complications such as hip dislocation, and loosening of the prosthesis. The study hopes to show that by using the navigation device, surgeons are able to align the device with more accuracy than by using standard operative techniques.

Interventions

Participants will undergo a standard hip replacement procedure. The MACNAV system will be used to align the acetabular cup into the acetabulum using an electronic module which can be programmed to the surgeon’s pre-defined angles of inclination and angulation. The femoral component will be implanted using standard techniques. The device is used during initial implant only and is anticipated to take no more than an additional 5 minutes of operation time.

Study design

Allocation

Randomised controlled trial

Primary purpose

Treatment

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Participant requires hip replacement, no prior hip replacement surgery, willing and able to provide informed consent, not pregnant.

Exclusion criteria

Cannot comply with follow-up CT scan.

Outcome results