Implant design Evaluation (IDE)

Using IDE we are able to predict how implant design and surgical technique affect clinical outcomes, muscle function, range of motion, and impingment.

SIDE software usage is documented above. Feel free to contact Rehoboth if any questions persist.

Implant CAD model preparation PDF link:

Download Here

SIDE software download link:

Download Here

 

 

Figure 1: Implant design evaluation flow-work

Manufacturer Benefits:

1. Patient-specific virtual model created from real “in vivo” patient data

2. Patient-specific implant and bone information taken from pre-operative CT (Figure 3)

3. Utilize 3 dimensional fluoroscopic data to drive implant and bone motion (Figure 4)

4. Eliminate non-ideal designs in a fraction of the time (Figure 5)

5. Insight into how well implant suite varies muscle function(Figure 6)

6. Lower cost in rapid prototyping of different implant design

7. Provides an objective evaluation to assess muscle function considering both active and passive aspects of the muscle (Figure 1)

8. Reduces need for cadaveric studies by allowing for 1000’s of simulations in a fraction of the time.

 

Figure 2:  Real life data collection setup

Figure 3: CT reconstructions of Scapula and humerus bones

Figure 4:  Image registration technique to get 3 dimensional kinematic data for motion of the implant and bone.

 

Muscle Performance Analysis:

1. Muscle moment Arm evaluation

2. Muscle normalized length evaluation

3. Muscle force evaluation

4. Muscle activation evaluation

Figure 5: Example of implant configuration that can be varied to assess implant design sensitivity

Figure 6: Example sensitivity graph for lateral deltoid  muscle moment arm over dynamic abduction