Transradial Self-Suspension Prosthesis
All Self-Suspension Socket Technical Objectives
- Provide self-suspension, be secure
- Maximize ROM, but not loose suspension
- Comfortable with resistive forces and throughout ROM
- Independent donning and doffing
- Require a balance of compression between
- the triceps bar and the cubital trimline
- the mediolateral suspensors
- the amount of suspension and the amount of comfort and ROM
- Design of the socket depends on the patient’s characteristics
- Limb length
- Limb presentation
- Functional goals
| Approx year | Socket design |
| 1960s | Muenster Socket Design |
| 1970s | Northwestern University Socket Design |
| 1970s | Modified Ottobock Socket Design: revision of the Muenster design to allow greater ROM by applying the Northwestern principles of an anterior ML pressure over the anterior epicondyles |
| 2000 | Anatomically Contoured and Controlled Interface (ACCI) |
| 2000 | Transradial Anatomically Contoured (TRAC) Interface (Socket Design) |
IN GENERAL:
- Longer than 55% may benefit from NU design
- To allow great ROM – ACCI design
- 50-30% Otto Bock Modified design
- 30% or less may require classic Muenster design
| Modified Ottobock Socket Design |    |
| ACCI Socket design |    |