Shoulder Point Fitting: A Simpler Way to Repair Tricuspid Valves?
"New surgical method offers a universal approach to tricuspid valve annuloplasty, potentially reducing complications and improving patient outcomes."
Tricuspid valve repair is gaining more and more attention. The term 'tricuspid' suggests that the tricuspid valve (i.e., the right-sided atrioventricular valve) has three leaflets. However, about half of all tricuspid valves consist of three leaflets and that the remaining half consist of four or more leaflets. The complexity of tricuspid valve anatomy, especially in cases with multiple leaflets, poses a significant challenge during valve repair surgeries.
A recent study published in The Annals of Thoracic Surgery introduces a novel technique called the 'shoulder point fitting method' for tricuspid annuloplasty. This method aims to simplify the procedure and improve outcomes by providing a universal landmark for surgeons to use during the repair process.
This article breaks down the 'shoulder point fitting method,' its benefits, and why it could become a game-changer in tricuspid valve repair.
Ring Fitting and the Shoulder-Point Method
Tricuspid valve repair includes annuloplasty ring implantation, and a reported challenge is fitting a ring without deforming the valve’s configuration. One 2018 article defines a “shoulder point” on both the tricuspid annulus and the annuloplasty ring and advocates using it as a simple, universal fitting landmark. Another source notes that approximately half of tricuspid valves have four or more leaflets and says previous reports had not discussed ring implantation in these multi-leaflet valves. The method is presented as applicable to any type of tricuspid annuloplasty ring.
What is the 'Shoulder Point Fitting' Method?
The 'shoulder point fitting method' focuses on identifying a consistent anatomical landmark on both the tricuspid valve annulus and the annuloplasty ring. This 'shoulder point' serves as a guide for positioning and securing the annuloplasty ring, which is used to reshape and stabilize the valve.
- Defining the Shoulder Point: The shoulder point is located on a diagonal line extending from the commissure (the point where valve leaflets meet) between the anterior and septal leaflets.
- Locating the Shoulder Point: Imagine the valve as a clock face. If the commissure between the septal and posterior leaflets is at 3 o'clock, the shoulder point is approximately at 2 o'clock.
- Adapting to Valve Variations: In valves with multiple leaflets, the shoulder point may be located on the annulus of the posterior leaflet.
Leaflet Anatomy and Repair Complexity
A study on morphological diversity of the tricuspid posterior leaflet reports that the presence of two posterior leaflets was an independent risk factor for additional procedures during tricuspid valve repair (odds ratio 2.6; 95% confidence interval 1.1–6.1; p=0.033). The study says it applied the shoulder point fitting method of proportional annuloplasty in all patients to avoid valve deformation. A separate article notes that about half of tricuspid valves have two posterior leaflets and that fibrous tissue in the tricuspid annulus is poor.
Repair Trade-offs in Endocarditis
A review reports that, among patients undergoing tricuspid surgery for endocarditis, repair using suture or ring annuloplasty, bicuspidization, or patch augmentation was associated with a lower rate of recurrent endocarditis. The same review reports a higher risk of recurrent moderate-to-severe tricuspid regurgitation with these repair approaches. This finding describes a trade-off in the cited endocarditis population and does not assess the shoulder point fitting method specifically.
Transcatheter Repair in Selected Patients
A 2025 article describes transcatheter tricuspid valve interventions as having transformed treatment of tricuspid valve disease. It reports that transcatheter tricuspid edge-to-edge repair has shown favorable safety, symptom relief, quality-of-life improvement, and fewer heart-failure hospitalizations in selected patients with severe tricuspid regurgitation. The snippet also notes that repair may not result in an adequate outcome in complex cases, but does not provide further comparative details.
Why This Method Matters
The 'shoulder point fitting method' offers several potential advantages over traditional techniques. It simplifies the procedure, making it more accessible to a wider range of surgeons. It also provides a more reliable and consistent approach, regardless of the complexity of the valve anatomy. Finally, it could lead to better patient outcomes by reducing the risk of complications and improving the long-term durability of the repair.
Ongoing Debate About Moderate Regurgitation
An expert perspective says that, with evolving understanding of tricuspid regurgitation and advances in therapy, repair of moderate tricuspid regurgitation may benefit patients. It also states that consensus on treating tricuspid regurgitation has been lacking for decades. The source frames potential benefit as an evolving clinical view rather than a settled consensus.
Market and Technology Trends
A 2026–2033 market outlook describes current trends, challenges, and opportunities in the tricuspid valve repair sector. A September 28, 2026 article characterizes the market as undergoing significant transformation driven by emerging clinical needs and rapid technological advancements. A September 17, 2026 market report also points to increasing prevalence of tricuspid valve disorders and advances in minimally invasive surgical techniques as factors shaping the competitive landscape. A February 4, 2026 report notes that new research and critical FDA approvals have contributed to the evolution of interventional treatment.
Avoiding Valve Deformation
The source defines a shoulder point on the tricuspid annulus and the annuloplasty ring as a landmark for ring implantation. It advocates a simple, universal fitting method intended to avoid deforming the tricuspid valve after ring implantation. The source also notes that tricuspid valve repair has received recent attention.
The study authors suggest that this method can be applied to any tricuspid valve morphology, making it a truly universal solution. They also emphasize the importance of using the shoulder point as a guide to avoid distorting the valve during the repair process.
While further research is needed to confirm these benefits, the 'shoulder point fitting method' represents a promising step forward in the field of tricuspid valve repair. For patients with tricuspid valve disease, this new technique could offer a simpler, safer, and more effective path to recovery.