The primary goal of this research is to study the effect of several simulated muscle transpositions in patients with a hip abduction weakness, caused by a total hip arthroplasty. With the use of a musculoskeletal model of the lower extremities, it…
ID
Source
Brief title
Condition
- Joint disorders
- Bone and joint therapeutic procedures
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The primary study outcome is the difference between hip abduction strengths
between healthy people, people with a hip abduction deficiency as a result of a
total hip arthroplasty, and people with a hip abduction deficiency as a result
of a total hip arthroplasty with a simulated muscle transposition.
Secondary outcome
not applicable
Background summary
A total hip prosthesis for a coxarthrose improves for almost all patients the
quality of life. A small group however, develops a gait disorder (Trendelenburg
gait) after the operation, due to a hip abduction deficiency (especially the m.
gluteus medius). This results in a instable hip and a lurching gait. Currently
there is no surgical treatment possible for these patients. This study
investigates the possibility of a muscle transposition so as to restore hip
abduction strength, resulting in a stabile hip and a normal gait pattern.
Study objective
The primary goal of this research is to study the effect of several simulated
muscle transpositions in patients with a hip abduction weakness, caused by a
total hip arthroplasty. With the use of a musculoskeletal model of the lower
extremities, it is possible to simulate muscle transpositions. The effect of
each simulated muscle transposition can be compared with each other, so as to
determine the muscle transposition which restores hip abduction strength the
best, without compromising other strengths (like flexion and rotation).
Study design
This study needs data from static trials, gait trials and force measurements of
5 healthy and 10 patients with a functional hip abduction weakness as a result
of a total hip arthroplasty. The measurements are at the gait laboratory of
Roesingh Research and Development (RRD). During the measurements EMG signals of
6 leg muscles, VICON signals, force plate signals and maximal isometric
abduction and flexion forces are registered.
Study burden and risks
The measurements take in total approximately 3 hours. The risk for the subjects
is small, since only static, gait and force measurements are performed. The
risk for a subject of falling is not greater than it is during daily walking.
During the force measurements, no external forces are applied on the subject.
Only forces the patient generates are measured, making the risks small. To
reduce the risks even further, an experienced revalidation-physician or
physiotherapist is present during the measurements.
Drienerlolaan 5
7522 NB Enschede
Nederland
Drienerlolaan 5
7522 NB Enschede
Nederland
Listed location countries
Age
Inclusion criteria
patients:
- with a functional hip abduction deficiency, as a result of a total hip arthroplasty
- who are 18 years of age or older
- with a unilateral hip abduction deficiency
- patient is able to walk independantly
- with sufficient cognitive capabilities;Healthy people:
- who are 18 years of age or older
- with sufficient cognitive capabilities
Exclusion criteria
Patients:
- who have other functional limitations which influence their gait pattern (like knee or ankle injuries);Healthy people:
- who have limitations which influences their gait pattern
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL19065.075.07 |