Motion inducing reverse shoulder assembly
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EXACTECH INC
- Publication Date
- 2014-08-06
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 
Figure 2 
Figure 3
Abstract
Description
Background technique
[0001] Reverse shoulder prostheses have been indicated for patients with nonfunctional rotator cuff, pain, secondary arthropathy, and pseudoparalysis. Patients receiving reverse shoulder prosthesis implants often have muscle deficits that prevent them from achieving internal or external rotation or more complex movements that require a combination of internal or external rotation and another type of motion. One such example is a clinical condition often referred to as "horn-blowing chirality" or "dropping sign," in which a defect in the external rotator muscle prevents the patient from turning the arm outward when the arm is raised. Rotates the arm and often causes the arm to fall into internal rotation as it is raised. External rotation is used for many activities in everyday life, including, but not limited to, eating and brushing teeth. Some of the external rotators in the shoulder are the posterior deltoid, infraspinatus, and teres minor—patients wit...