Reunion rsa image 962df41730218a6c0738eb920f6a30f5007329e9b55e947d2dcf3fec1f2c40c9
Reverse Shoulder Arthroplasty

The ReUnion RSA (reverse shoulder arthroplasty) is designed as an alternative in cases where a primary total shoulder replacement may not sufficiently address disorders of the shoulder.

The important rotator cuff muscles act as stabilizers for the shoulder joint. As we age, it is common for these muscles to become weak or tear. In cases of severe rotator cuff tears, the humeral head (ball) and glenoid (socket) can be reversed with the implants to alter the joint relationship. By altering the relationship of the ball and socket, the shoulder may still be replaced, and some motion may be restored by the deltoid muscle and implants functioning together.11

Infographics  0032 2 40f1cae95d485a25d289f911360d3616b5c13ba4bb9280377d0598b2ddf156f4

Reunion rsa image2 d6be5d6cbc3f130521d93d014736077d5cd9cebf5625b4dc9544b80d2043b399The concept of altering the joint was introduced over thirty years ago and extensive research has been done around the concept of "flipping the joint". A patient may need a reverse shoulder arthroplasty for a variety of causes including rotator cuff tears associated with arthritis.

Similar to the TSA procedure, an incision is made to expose the humeral head and a cutting guide is used to determine the appropriate amount of diseased bone to remove. The humerus bone is prepared and a trial sized stem is inserted into the bone. The surgeon will be begin preparing the shoulder socket, where a round plate will be secured to the bone with multiple screws. 1 The surgeon will place a spherical shaped component onto the plate, reversing the joint. A new socket is placed on the arm bone to complete the surgery.

After rehabilitation, you may be able to lift your arm to just above shoulder height and bend your elbow to reach the top of your head or into a cupboard. Reverse total shoulder replacement has been shown to offer pain relief and patient satisfaction is typically very high. 11

Reverse shoulder arthroplasty has been shown to be an effective treatment option in patients who have shoulder pain due to a variety of causes. It's Your Move. Talk to your doctor today to see if ReUnion RSA is right for you.

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IMPORTANT INFORMATION ABOUT SHOULDER REPLACEMENT

ReUnion System Indications for Use:

For use as a Hemi or Total Shoulder Replacement: Aseptic necrosis of the humeral head; Painful, disabling joint disease of the shoulder resulting from: degenerative arthritis, rheumatoid arthritis or posttraumatic arthritis; Proximal humeral fracture and/or dislocation; Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results; Revision of previous unsuccessful total shoulder replacement, resurfacing or other procedure.

Glenoid components are intended for cemented use only. The humeral stem components are intended for both cemented and cementless use. In the case of revision, when ReUnion TSA humeral stems are well fixed, the system is indicated for conversion to a total shoulder arthroplasty. In conjunction with ReUnion TSA humeral and glenoid components, if the natural glenoid provides sufficient bone stock, ReUnion TSA humeral stems can be converted from a hemiarthroplasty to a total shoulder arthroplasty, as well as revised from an existing total shoulder arthroplasty to a secondary total shoulder arthroplasty. It is also indicated for conversion to a hemiarthroplasty. In conjunction with ReUnion TSA humeral components, ReUnion TSA humeral stems can be converted from a total or ReUnion RSA reverse shoulder arthroplasty to a hemiarthroplasty, as well as revised from an existing hemiarthroplasty to a secondary hemiarthroplasty, in treatment of previously failed shoulder arthroplasty cases where revision to a reverse shoulder arthroplasty is inappropriate.

ReUnion Reverse Arthroplasty System (RSA): The ReUnion RSA Shoulder System is intended for primary, fracture, or revision of total Shoulder replacement. The patient’s joint must be anatomically and structurally suited to receive the selected implant(s), and a functional deltoid muscle is necessary to use the device. The patient’s joint must have gross rotator cuff deficiency, a functional deltoid muscle and be anatomically and structurally suited to receive the selected implant(s). Painful, disabling joint disease of the shoulder resulting from: degenerative arthritis or rheumatoid arthritis; Proximal humeral fracture; Revision of previously failed shoulder joint replacement; Glenoid Baseplate components are intended for cementless use with the addition of screw fixation; The Humeral Stem components are intended for both cemented and cementless use; In the case of revision, when ReUnion TSA humeral stems are well fixed, the system is indicated for conversion to a reverse shoulder arthroplasty.

In conjunction with ReUnion RSA humeral and glenoid components, ReUnion TSA humeral stems can be converted from a hemi or total shoulder arthroplasty to a reverse shoulder arthroplasty, as well as revised from an existing reverse shoulder arthroplasty to a secondary reverse shoulder arthroplasty, in treatment of a grossly deficient rotator cuff with sever arthropathy or previously failed joint replacement with a grossly deficient rotator cuff. The patient must have a functional deltoid muscle, and be anatomically and structurally suited to receive the implant(s).

The ReUnion RFX System, when used with ReUnion TSA Humeral and Glenoid components, is indicated for use as a Hemi or Total Shoulder Replacement: Aseptic necrosis of the humeral head; Painful, disabling joint disease of the shoulder resulting from: degenerative arthritis, rheumatoid arthritis, or posttraumatic Arthritis; Proximal humeral fractures and/or dislocation; Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results; Revision of previous unsuccessful total shoulder replacement, resurfacing or other procedure. In the case of revision, when ReUnion RFX humeral stems are well fixed, the system is indicated for conversion to a total shoulder arthroplasty. In conjunction with ReUnion TSA humeral and glenoid components, if the natural glenoid provides sufficient bone stock, ReUnion RFX humeral stems can be converted from a hemiarthroplasty to a total shoulder arthroplasty, as well as revised from an existing total shoulder arthroplasty to a secondary total shoulder arthroplasty. It is also indicated for conversion to a hemiarthroplasty. In conjunction with ReUnion TSA humeral components, ReUnion RFX humeral stems can be converted from a total or reverse shoulder arthroplasty to a hemiarthroplasty, as well as revised from an existing hemiarthroplasty to a secondary hemiarthroplasty, in treatment of previously failed shoulder arthroplasty cases where revision to a reverse shoulder arthroplasty is inappropriate. The glenoid components are intended for cemented use only. When used with ReUnion RSA Humeral and Glenoid Components

The ReUnion RFX System, when used with ReUnion RSA humeral and glenoid components, is intended for primary, fracture, or revision total shoulder replacement. The patient’s joint must have gross rotator cuff deficiency, a functional deltoid muscle, and be anatomically and structurally suited to receive the implant(s). Painful, disabling joint disease of the shoulder resulting from degenerative arthritis or rheumatoid arthritis; Proximal humeral fractures; Revisions of previously failed shoulder joint replacements.

In the case of revision, when ReUnion RFX humeral stems are well fixed, the system is indicated for conversion to a reverse shoulder arthroplasty. In conjunction with ReUnion RSA humeral and glenoid components, ReUnion RFX humeral stems can be converted from a hemi or total shoulder arthroplasty to a reverse shoulder arthroplasty, as well as revised from an existing reverse shoulder arthroplasty to a secondary reverse shoulder arthroplasty, in treatment of a grossly deficient rotator cuff with severe arthropathy or previously failed joint replacement with a grossly deficient rotator cuff. The patient must have a functional deltoid muscle, and be anatomically and structurally suited to receive the implant(s). Glenoid Baseplate components are intended for cementless use with the addition of screw fixation. Source: Stryker Instructions for Use K161863


The information presented is for educational purposes only. Stryker is not dispensing medical advice. Please speak to your doctor to decide which type of surgery is right for you. Only your doctor can make the medical judgment which products and treatments are right for your own individual condition. As with any surgery, joint replacement surgery carries certain risks. Your surgeon will explain all the possible complications of the surgery, as well as side effects. Additionally, the lifetime of a joint replacement product is not infinite and varies with each individual. Also, each patient will experience a different post-operative activity level, depending on their own individual clinical factors. Your doctor will help counsel you about how to best maintain your activities in order to potentially prolong the lifetime of the device.

Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the following trademarks or service marks: ReUnion, SmartLock, SOMA, Stryker, X3. All other trademarks are trademarks of their respective owners or holders.
Content ID: RU-AWI-1, 05-2017

References

  1. Wiater, J. Michael, MD. "Shoulder Joint Replacement." Ortho Info. American Academy of Orthopaedic Surgeons, Dec. 2011. Web. Feb. 2017.
  2. "Arthritis Facts." Arthritis Foundation. Arthritis Foundation, n.d. Web.
  3. SmartTrak US Upper Extremity Internal Fixation Market Projections
  4. Nam, David et al. " Rotator Cuff Tear Arthropathy: Evaluation, Diagnosis, and Treatment" J Bone Joint Surg Am. 2012;94:e34(1-11)
  5. Armstrong, April D., MD, and George S. Athwal, MD. "Rotator Cuff Tears." Rotator Cuff Tears-OrthoInfo - AAOS. American Academy of Orthopaedic Surgeons, 01 Mar. 2017. Web. 06 Feb. 2017.
  6. "What Is Rheumatoid Arthritis?" Arthritis Foundation. Arthritis Foundation, n.d. Web. Feb. 2017
  7. Avascular Necrosis AVN of the Shoulder." Avascular Necrosis (AVN) Charity UK. Avascular Necrosis (AVN) Charity UK, 1 Jan. 2015. Web. Feb. 2017.
  8. Exercising with Osteoarthritis." Exercising with Osteoarthritis. Arthritis Foundation, n.d. Web. Mar. 2017
  9. Edwards, T.B. et al. “A Comparison of Hemiarthroplasty and Total Shoulder Arthroplasty in the Treatment of primary Glenohumeral Arthritis: Results of a Multicenter Study.” JSES. May 2003: 12:207-213.
  10. SmartTrak US Shoulder Replacement Procedure Market Projections
  11. Phoenix Shoulder and Knee. "The Benefits of Reverse Total Shoulder Replacement." The Benefits of Reverse Shoulder Total Shoulder Replacement. Phoenix Shoulder & Knee, 31 Oct. 2013. Web.
  12. Liu JN., et al. Return to sports after shoulder arthroplasty: as systemic review and meta-analysis. Knee Surg Sports Traumatol Arthrosc. 2017 Apr 17
  13. Anatomy Diagrams designed with the use of: Terry, et al. Functional anatomy of the shoulder. J Athletic Training 2000;35(3):248-255
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