Types of sternal retractors are differentiated by mechanical design and functional capability, each influencing market allocation. Self‑retaining retractors, comprising roughly 40% of unit sales, feature locked arms that free surgical assistants and are favored in high‑volume cardiac cases for consistent force application. Hand‑held retractors, making up about 25%, provide surgeons with direct tactile feedback and are preferred in thoracic procedures where nuanced adjustments are required. Adjustable‑blade retractors, accounting for 20%, incorporate interchangeable blades (e.g., flat, curved, or serrated) to accommodate varying sternum thicknesses and are essential in orthopedic and trauma contexts. Finally, blade‑type retractors with fixed geometry represent the remaining 15%; their simplicity and lower cost suit emergency trauma settings where speed supersedes customization. The distribution of these types reflects procedural complexity, cost considerations, and ergonomic preferences, thereby delineating the market taxonomy for Sternal Retractors.