The external hip rotator muscles after total hip replacement with the direct anterior approach A pilot study

The external hip rotator muscles after total hip replacement with the direct anterior approach A pilot study - External hip rotator muscles after DAA

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON45014

Enrollment

Registered

2016-03-14

Start date

2016-08-31

Completion date

Unknown

Last updated

2024-04-23

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

Conditions

external rotators hip short rotator muscles of the hip joint.

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Age > 18 years Scheduled for uncemented total hip replacement with Direct Anterior Approach Informed consent

Exclusion criteria

Exclusion criteria: Medical condition that is a contra-indication for MRI, e.g. pacemaker, ICD, cochlear implants or claustrofobia Mental disabilities Language barrier Previous hip surgery Hip replacement with another approach than the DAA (direct lateral or posterolateral approach) Hip prosthesis for treatment of hip fracture Cemented hip prosthesis Osteoarthritis of contralateral hip Osteoarthritis of the knee Inability to flex hip and knee 90 degrees ( for external rotation force measurement).

Design outcomes

Secondary

Measure	Time frame
To assess if the intraoperative estimated external rotator tendon release corresponds to postoperative abnormalities of the external rotators on MRI To assess if there is a relation between external rotator abnormalities on MRI and postoperative hip function (including external rotation force) and pain symptoms (measured using questionnaires).	—

Primary

Measure	Time frame
The main study parameter is assessing abnormalities of the external hip rotators on MRI by describing dehiscence of one or more tendons and grading muscle fatty atrophy.	—

Countries

Netherlands

Outcome results