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Reverse ball and socket prosthesis | scholarly search

Clinical and biomechanical research will be discussed which has provided the design rationale for the Reverse Shoulder Prosthesis (DJO Surgical, Austin, TX), formerly known as the Encore Reverse Shoulder Prosthesis.

There reverse shoulder prosthesis for glenohumeral ..

N2 - The reverse shoulder prosthesis was approved for clinical use in the United States in March 2004. This new prosthesis reverses the normal ball-and-socket relationship of the shoulder joint. As a result of replacement of the glenoid component with a ball and of the humeral head with a socket, the center of rotation is moved distally and medially, allowing more control of shoulder motion by the deltoid muscle. This improved geometric configuration allows shoulder reconstruction in patients who have irreparable rotator cuff damage with secondary arthropathy, pain, and "pseudoparalysis" (ie, inability to lift the arm above the horizontal). Patients experience a significant improvement in range of motion and markedly decreased pain after undergoing reverse shoulder arthroplasty; however, the procedure is associated with a relatively high rate of complications, including dislocation, infection, loosening, malpositioning of the glenoid component or fixation screws, disassembly of the humeral component, periprosthetic fracture, and inferior glenoid impingement leading to scapular erosion. Therefore, it is important that the radiologist be familiar with the normal and abnormal imaging appearances of this new prosthesis.

tissue/prosthesis include: reverse ball and ..

The Reverse® Shoulder Prosthesis replaces the damaged joint

The reverse shoulder prosthesis was approved for clinical use in the United States in March 2004. This new prosthesis reverses the normal ball-and-socket relationship of the shoulder joint. As a result of replacement of the glenoid component with a ball and of the humeral head with a socket, the center of rotation is moved distally and medially, allowing more control of shoulder motion by the deltoid muscle. This improved geometric configuration allows shoulder reconstruction in patients who have irreparable rotator cuff damage with secondary arthropathy, pain, and "pseudoparalysis" (ie, inability to lift the arm above the horizontal). Patients experience a significant improvement in range of motion and markedly decreased pain after undergoing reverse shoulder arthroplasty; however, the procedure is associated with a relatively high rate of complications, including dislocation, infection, loosening, malpositioning of the glenoid component or fixation screws, disassembly of the humeral component, periprosthetic fracture, and inferior glenoid impingement leading to scapular erosion. Therefore, it is important that the radiologist be familiar with the normal and abnormal imaging appearances of this new prosthesis.

Knee replacement involves the creating a small incision to open up the knee and removing arthritic cartilage. The prosthesis is then "glued" to the bones with special, surgical cement. The knee is sutured back together, and drainage tubes are used to prevent clogging.

arthroplasty prosthesis reverses the shoulder ball ..

Find all the manufacturers of reverse shoulder prosthesis and contact them directly on MedicalExpo.

AB - The reverse shoulder prosthesis was approved for clinical use in the United States in March 2004. This new prosthesis reverses the normal ball-and-socket relationship of the shoulder joint. As a result of replacement of the glenoid component with a ball and of the humeral head with a socket, the center of rotation is moved distally and medially, allowing more control of shoulder motion by the deltoid muscle. This improved geometric configuration allows shoulder reconstruction in patients who have irreparable rotator cuff damage with secondary arthropathy, pain, and "pseudoparalysis" (ie, inability to lift the arm above the horizontal). Patients experience a significant improvement in range of motion and markedly decreased pain after undergoing reverse shoulder arthroplasty; however, the procedure is associated with a relatively high rate of complications, including dislocation, infection, loosening, malpositioning of the glenoid component or fixation screws, disassembly of the humeral component, periprosthetic fracture, and inferior glenoid impingement leading to scapular erosion. Therefore, it is important that the radiologist be familiar with the normal and abnormal imaging appearances of this new prosthesis.

What are the benefits to the patient?
With the Reverse® Shoulder Prosthesis, the patient has the potential for greater range of motion compared to conventional shoulder implants.

The use of the reverse shoulder prosthesis provides improvement in pain and function for ..
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US7241314B1 - Reverse shoulder prosthesis - Google …

Reverse shoulder systems offer patients a solution to irreparable rotator cuff tear. New technologies utilize an innovative design to engage the deltoid in place of the badly damaged rotator cuff. The unique 23mm glenoid baseplate design utilizes an integrated central screw that generates 2000N of compressive force prior to adding four locking or non-locking screws.

Reverse shoulder replacement prosthesis

The reverse ball and socket design has had early success in restoring shoulder function and relieving pain in patients with a rotator cuff deficient shoulder1-7 . Shoulder prostheses which were derived directly from hip replacements, with a constrained ball and socket, have failed. Hemiarthroplasty, the current standard of care for this condition, offers only "limited goals" for functional improvement and only modest improvements in pain 8-11. Likewise, bipolar implants, used in an effort to improve stability, have produced results not significantly better than hemiarthroplasty 12,13.

The reverse shoulder prosthesis - News Medical

What makes it unique?
The Reverse® Shoulder Prosthesis is an exclusive design that reverses the shoulder anatomy in order to effectively resist the pull of the shoulder deltoid muscle. For patients, this could mean greater range of motion and relief from pain.

prosthesis reverses the shoulder ball ..

Reverse total shoulder replacement – This type of surgery is performed by highly specialized surgeons, in case you have had history of failed treatments, such as failures of surgery for arthritis and fracture management.Very low complication rate, even less than 2%.

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