CATALYST CSR

TOTAL SHOULDER SYSTEM

PURPOSEFULLY DESIGNED™

to be better.

THE NEW ANATOMIC SYSTEM

Clinically proven to be the most advanced TSA system ever created, built around four core design principles:

Precision placement

Anatomic design

Bone preservation

Tissue sparing

Allowing for optimal: range of motion (ROM), kinematics, stability, stress on glenoid, tension on cuff, and subscapularis integrity.

PRECISION PLACEMENT

CSR allows for same surgical approach even in the presence of deformities such as a flattened head.
Patented Plunge Reamer allows for automatic stop based on existing humeral anatomy to prep bone for ideal restoration conditions based off implant’s unique design.
Clear fit and restoration of native head height and COR is accomplished when superior and inferior points are aligned.
Proven to replicate native COR within gold standard of 3.00mm 95% and within <1.00mm 33% of the time, which has been shown to be associated with improved patient-reported outcomes and ROM.^1,2,3

ANATOMIC DESIGN

Studies show implants with a non-spherical articular surface have kinematics that behave more like natural anatomy than traditional spherical humeral heads.⁴ This can lead to increased range of motion and decreased muscle tension.⁶

BONE PRESERVATION

Remove up to 50% less bone through multiplanar cuts similar to other joint systems.⁸
Catalyst CSR is fixated on the strongest, densest subchondral bone, compared to traditional stemless designs that rely on weaker metaphyseal bone below the anatomic neck.^{1, 7}
Unprecedented revisability through preservation of metaphyseal bone – unique to only Catalyst.

TISSUE SPARING

Angled pegs follow natural angles of glenoid vault, preventing perforation of anterior glenoid bone.
Proprietary angled instrumentation simplifies surgeon’s exposure, which can help minimize forceful retraction of the humeral head and other soft tissues. This allows for a subscapularis-sparing approach with standard tray instrumentation.

GLENOID DESIGN

Standard and full-wedge augment options that can be used for left or right sides utilize the same surgical preparation, thus minimizing intra-op decision-making and reducing inventory on site.

Anchoring elements designed to provide immediate, secure fixation to the glenoid even before the cement has hardened.

Built-in Multiplanar Compression to add inherent rigidity.

The 3-peg glenoid requires up to 35% less bone removal from native glenoid compared to competitors.⁹ This preserves the critical bone required in virtually all reverse baseplate anchoring systems.

The rocking horse phenomenon is believed to be the main cause of glenoid component loosening. The Catalyst design, with a tapered bearing rim, distributes forces from humerus directly into bone mitigating this phenomenon.⁵

PURPOSEFULLY DESIGNED

RANGE OF MOTION (ROM)

Clinically meaningful improvement in ROM at just 6 weeks post-op versus a traditional TSA solution¹

KINEMATICS

True restoration of the native joint kinematics and force vectors ^{11, 12}

IMPLANT STABILITY

Patented multiplanar osteotomy preserves up to 50% more of the patients’ healthy bone compared to other stemless designs. ⁸

STRESS ON GLENOID

Anatomically positioned humeral heads are 6.6x less likely to require removal due to loosening. ¹³

TENSION ON CUFF

Decreased rates of rotator cuff failure with more anatomically positioned heads ¹⁴

SUBSCAPULARIS INTEGRITY

Innovative subscapularis sparing approach to total shoulder arthroplasty ¹⁵

RANGE OF MOTION (ROM)

Clinically meaningful improvement in ROM at just 6 weeks post-op versus a traditional TSA solution ¹

KINEMATICS

True restoration of the native joint kinematics and force vectors ^11,12

IMPLANT STABILITY

Patented multiplanar osteotomy preserves up to 50% more of the patients’ healthy bone compared to other stemless designs. ⁸

STRESS ON GLENOID

Anatomically positioned humeral heads are 6.6x less likely to require removal due to loosening. ¹³

TENSION ON CUFF

Decreased rates of rotator cuff failure with more anatomically positioned heads ¹⁴

SUBSCAPULARIS INTEGRITY

Innovative subscapularis sparing approach to total shoulder arthroplasty ¹⁵

SINGLE-TRAY SYSTEM

The Catalyst CSR is a single-tray arthroplasty system offering:

Less inventory
Less reprocessing
Less set-up time in the OR

Experience streamlined surgery and hospital efficiency with Catalyst’s innovative instrumentation.

Reference:

Budge MD, Orvets N. Stemless Total Shoulder Arthroplasty Using a Novel Multiplanar Osteotomy and Elliptical Humeral Head Results in Both Improved Early Range of Motion and Radiographic Center of Rotation Compared to Standard Total Shoulder Arthroplasty. J Shoulder Elbow Surg 2023, 32: 318-25.
Baranek ES, Trofa DP, Levine WN, Goldberg SS. Accuracy of Humeral Implant Positioning Using a Canal-Sparing Total Shoulder Arthroplasty System. Journal of Shoulder and Elbow Arthroplasty. 2019; 3: 1–8.
Werner BC, Creighton RA, Denard PJ, Lederman E, Romeo A, Griffin JW. Prosthetic humeral head center of rotation shift from ideal is associated with inferior clinical outcomes after anatomic total shoulder arthroplasty. Seminars in Arthroplasty: J Shoulder Elbow Surg. Nov 2021; 31(4): 668-76.
Ianotti JP, Gabriel JP, Schneck SL, et al. The normal glenohumeral relationships. J Bone Joint Surg. 1992; 74-A(4): 491-500.
Catalyst OrthoScience. Designing a Better Glenoid: A Science-Based Approach. Apr 20, 2019. 1227-2001-B.
Catalyst OrthoScience. Scientific Basis for the Use of Non-Spherical Humeral Heads. May 20, 2019. 1226-2001-B.
Alidousti H, Giles JW, Emery RJH, Jefferes J. Spatial mapping of humeral head bone density. J Shoulder Elbow Surg. 2017; 26(9): 1653-61.
Catalyst OrthoScience. Implant Volume Calculations. Feb 8, 2018. 1226-9250-01.
Catalyst OrthoScience. Designing a Better Glenoid: Biomechanical Test Data Summary. May 20, 2019. 1227-2005-B.
Catalyst OrthoScience. CSR Value Proposition. Oct 12, 2023. 1226-2039-A.
Jun BJ, Iannotti JP, McGarry MH, et al. The effects of prosthetic humeral head shape on glenohumeral joint kinematics. J Shoulder Elbow Surg 2013; 22(10): 1423-32.
Jun BJ, Lee TQ, McGarry MH. The effect of prosthetic humeral head shape on glenohumeral joint kinematics during humeral axial rotation in total shoulder arthroplasty. J Shoulder Elbow Surg 2016; 25(7): 1084-93.
Denard PJ, Raiss P, Sowa B, Walch G. Mid- to long-term follow-up of total shoulder arthroplasty using a keeled glenoid in young adults with primary glenohumeral arthritis. J Shoulder Elbow Surg. Jul 2013; 22(7):894-900.
Geervliet PC, Willems JH, Sierevelt IN, Visser CPJ, van Noort A. Overstuffing in resurfacing hemiarthroplasty is a potential risk for failure. J Orthop Surg Res. Dec 2019; 14(1):474 .
Desai SS, Nelson RA, Korbel KC, Levine WN, Goldberg SS. Technical note: subscapularis‑sparing approach to perform anatomic total shoulder arthroplasty using a multiplanar humeral osteotomy and angled glenoid instruments. J Orthop Surg Res. 2022 Jan 11; 17(1):14.

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