Arthropathy Shoulder, Shoulder Osteoarthritis
Conditions
Keywords
Reverse Shoulder Arthroplasty
Brief summary
The objective of this study is to analyse the positioning of the scapula in standing position and compared to the supine position (CT scan) in 3 dimensions (3 rotations of the scapula) using a non-radiant, portable system, combining an ultrasound probe with marker and a camera integrated into a Tablet for the three-dimensional location of the marker (probe).
Detailed description
This is a mono-center trial. Patients in the process of pre-operative care of a reverse shoulder arthroplasty (CT Scan already available as part of the care course in supine position) will be offered the study. A localizer ultrasound will be performed during surgical consultation or the day before the surgery in standing position (duration: 1/2 day). This consultation takes place during the course of the surgical consultation or when the patient is admitted the day before his surgical procedure.
Interventions
The localizer ultrasound of the shoulder is performed in an unclothed patient (at the shoulders) and comes to locate bony landmarks using the ultrasound probe as a Transcutaneous localizer.
Sponsors
Study design
Intervention model description
This is mono-center study. Patients in the process of preoperative care of a Reverse Shoulder Arthroplasty (CT Scan already available as part of the extended care course) will be offered the study. A localizer ultrasound will be performed during surgical consultation or the day before the surgical procedure in standing position (duration: 1/2 day).
Eligibility
Inclusion criteria
* Major patients and agreeing to participate in the study after oral and written information. * Care course patients for a reverse shoulder arthroplasty on a native shoulder joint
Exclusion criteria
* Patients under the age of 18 * Patients refusing to participate in the study * Patients whose condition does not allow informed consent * Patients who are subject to legal protection (safeguarding of Justice, curatorship, guardianship), persons deprived of their liberty * Unaffiliated patients and non-beneficiaries of a health insurance plan
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Study the location of the scapula in 3 dimensions for the patient in standing position | Day 1 | descriptive statistics of the population : mean and standard deviation of the 3 rotations of the scapula in each plane of reference coronal plane expressed in degree. Comparison with the supine position and analysis of any differences. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Evaluating the accuracy of the device using a validation bench | Day 1 | Validation of the device using a biomechanical bench. The rotation will be assessed in coronal plane in degree. The differences between the measurements of the biomechanical bench will be compared to the measurements validation bench to assess the mean error and standard deviation of the ultrasound device |
Countries
France
Contacts
University Hospital, Brest