PRIMA Reverse
PRIMA™ Reverse
Proven Performance Rooted in the innovative SMR™ Stemless RingFiTT technology, PRIMA Reverse™ optimizes metaphyseal fixation and osseointegration, leveraging the highest-quality bone for superior stability and long-term outcomes.1, 2-4 Backed by over a decade of clinical validation, its 135° neck-shaft angle ensures reliable performance, maintaining patient outcomes with no compromise.5-8
Designed by Technology The PRIMA™ Stem offers five proximal outer diameter sizes, starting at 28mm, to accommodate a broad spectrum of humeral anatomies while maintaining a consistent inner diameter to streamline inventory. On the glenoid side, PRIMA™ TT Glenoid provides modular 25mm and 28mm baseplates with four lengths of Trabecular Titanium (TT) central pegs for tailored fixation. With glenosphere options in 36mm, 40mm, and 42mm diameters—available in concentric or eccentric configurations—and lateralization connectors (+5, +7, +9 CoR), plus regular and 10°/15°/20° Full Wedge augment options, PRIMA™ Reverse adapts to diverse patient needs with precision.
Efficiency Designed for simplicity, PRIMA™ Reverse features a monoblock stem with a 135° neck-shaft angle and a single-tray humeral preparation system, minimizing complexity in the OR. The PRIMA™ TT Glenoid system (reverse only) enhances efficiency with a single-tray reverse glenoid solution, incorporating the ASAP reamer for streamlined preparation of 25mm monoblock baseplates in Regular and 10° Full Wedge configurations. Central compressive screws (5mm and 6.5mm) and variable-angle peripheral screws (5mm with optional locking caps) ensure robust fixation with minimal instrumentation.
PRIMA™ Reverse combines proven technology, unmatched versatility, and surgical efficiency in one comprehensive platform, empowering surgeons to address a wide range of shoulder pathologies with confidence and precision.
- Overview
- References
PRIMA Short Stems
Was designed through technology as a 3D printed bone-preserving solution to improve operating room efficiency and deliver proven performance based on a strong clinical heritage.
1. PERFORMANCE
Based on the same SMR stemless RingFITT technology to enhance metaphyseal fixation and osseointegration2-4 where the best quality of bone is1, 5-8.
2. Designed by Technology
PRIMA Stem offers 5 sizes of proximal outer diameter, starting at 28mm, to fit a wide range of anatomies. The inner diameter does not change allowing for reduced inventory.
3. EFFICIENCY
Monoblock stem with a 135° neck-shaft angle and ONE tray system makes humeral preparation easy and efficient.
4. PRIMA SHORT STEM PLUS
The PRIMA Short Stem Plus is 20mm longer featuring medial/lateral suture holes on the sides and further Trabecular Titanium on the lateral portion of the stem.
PRIMA™ Short Stem Instrumentation and Surgical Steps
The PRIMA™ Short Stem instrumentation is designed for the ASC setting to deliver simplicity and efficiency—empowering surgeons with a streamlined approach to both anatomic and reverse shoulder arthroplasty. Featuring a straightforward 5-step surgical technique, surgeons can efficiently prepare both the PRIMA™ Short Stem and the PRIMA™ Short Stem Plus within a single instrument set.
1
EM Resection
2
Size and Pin
3
Ream
4
Compact and Check Canal
5
Trial Stem
Anatomic
A1 Trial Head
A2 Final Stem
A3 Head Adaptor
A4 Final Head
Reverse
R1
Trial Insert
R2
Final Stem
R3
Final Insert
PRIMA™ TT Glenoid
Introduces a new philosophy of reverse glenoid systems that allows for streamlined instrumentation all within a single instrument set. The system provides implants for primary cases requiring efficiency as well as for glenoid defects that demand versatility.
1. PROVEN FIXATION
Combining varying methods of fixation with 3D printed Trabecular Titanium material and central compressive screws available in 5mm and 6.5mm. Variable-angle peripheral screws are also offered in 5mm diameters with optional locking caps.
2. EFFICIENCY
A ONE tray reverse glenoid system with an ALL-IN-ONE glenoid preparation utilizing the ASAP reamer for 25mm monoblock baseplates in Regular and 10° Full Wedge options.
3. VERSATILITY
Modular dia. 25mm and 28mm baseplates, featuring four different lengths of TT central pegs to tailor glenoid fixation. Regular and 10°/15°/20° Full Wedge options available.
4. PERFORMANCE
Prima offers three diameters: 36mm, 40mm, and 42mm. All glenospheres are available in concentric or eccentric options and can be lateralized utilizing connectors in low (+5), medium (+7), and high (+9) CoR lateralization options.

PRIMA™ TT Glenoid Instrumentation and Surgical Steps
The PRIMA™ TT Glenoid features an intuitive instrumentation set designed to deliver simplicity, precision, and efficiency for every procedure. Centered around the innovative ASAP Reaming System, the instrumentation reams and prepares the boss for the glenoid component in a single, streamlined step—saving valuable surgical time while maintaining accuracy and control. Designed for the ASC with all instruments neatly organized in a lightweight tray, setup and sterilization are easier, helping to optimize efficiency in both the operating room and central sterile processing.
1
K-Wire
For Modular Baseplates
2
Ream Glenoid
2a
Central Drill
3
Trial Baseplate
For monoblock baseplates
2
All-in-one glenoid preperation
3
Trial Baseplate
4
Baseplate Insertation
4a
Central Screw (optional)
5
Peripheral Screws and (optional) Locking Caps
6
Trial Glenosphere
7
Glenosphere Insertation
- Marin E, Fedrizzi L, Regis M, Pressacco M, Zagra L, Fusi S. Stability Enhancement Of Prosthetic Implants: Friction Analysis Of Trabecular Titanium. Hip Int. 2012; 403:427-8.
- Sollazzo V, Massari L, Pezzetti F, Girardi A, Farinella F, Lorusso V, Burelli S, Bloch HR, Carinci F. Genetic effects of Trabecular TitaniumTM on MG-63 cell line: a genetic profiling evaluation. ISRN Mater Sci. 2011:392763
- Benazzo F, Botta L, Scaffino MF, Caliogna L, Marullo M, Fusi S, Gastaldi G. Trabecular Titanium can induce in vitro osteogenic differentiation of human adipose-derived stem cells without osteogenic factors. J Biomed Mater Res Part A. 2014:102A:2061-71.
- Devine D, Arens D, Burelli S, Bloch HR, Boure L. In vivo evaluation of the tissue integration of new highly porous Trabecular TitaniumTM. J Bone Joint Surg Br. 2012;94-B(Suppl XXXVII):201.
- Albers CGM, Chatindiara I, Moreno G, Poon PC. Good clinical and radiologic outcomes with the SMR Stemless anatomic TSA after a mininum of 2 years’ follow up. Seminars in Arthroplasty: JSES. 2021 April 6. Epub.
- Reeves JM, Athwal GS, Johnson JA. “An assessment of proximal humerus density with reference to stemless implants”. JSES. 2018 Apr;27(4):641-649.
- Comenda M, Quental C, Folgado J, Sarmento M, Monteiro J. “Bone adaptation impact of stemless shoulder implants: a computational analysis”. JSES. 2019 Oct;28(10):1886-1896.
- Schoch C, Ambros L, Geyer M, Plath JE, Dittrich M. “Clinical and radiological outcomes using the LIMA SMR stemless implant - A 2-years follow-up in 49 patients”. JSES Int. 2021 Sep 8;5(6):1042-1048.
- Fattori A, Pavan A, Pizzamiglio C, Pressacco M. “Stress Shielding in Total Shoulder Arthroplasty: An Automatic Analysis of 3D Volumetric Filling Ratio on a Novel 3D-printed Humeral Short Stem with an Open Design”. ISTA 2023, New York, USA.