Stryker Mako SmartRobotics vs mBos TKA System in 2026

Stryker Mako SmartRobotics

Stryker's Mako (Mako SmartRobotics) is a surgeon-guided robotic arm for orthopedic joint replacement and the large-footprint, CT-based, multi-procedure archetype of DEPLOY's orthopedic surgical sub-cohort. It pairs CT-based 3D pre-operative planning with intra-operative haptic boundary control (AccuStop physically constrains the saw or burr to the planned resection zone) and real-time optical bone tracking.

Critically, it is AI-augmented but surgeon-controlled, not autonomous: the surgeon holds and guides the arm and makes every cut; the robot does not move or cut on its own, the same assistive class as Intuitive's da Vinci. Cleared procedures span partial and total knee (total knee August 2015), cementless total knee, total hip and a hip-revision feature, Mako Spine (510(k) K241517, May 2024, pedicle-screw placement) and Mako Shoulder 1.0 (510(k) K242373, November 2024, reverse shoulder arthroplasty).

Sold in 45-plus countries by Stryker (NYSE: SYK). Cap-flag: Stryker frames itself in SEC filings as one of four leading global competitors, not a specific market-share percentage; aggregator share figures are not verified. As enterprise B2B surgical equipment, there is no consumer price.

mBos TKA System

The Monogram mBos TKA System is a robotic total-knee-arthroplasty platform from Monogram Technologies, a Zimmer Biomet subsidiary since October 2025. It is the autonomy-boundary case of DEPLOY's surgical cluster: unlike the AI-augmented, surgeon-controlled systems (Stryker Mako, Smith+Nephew CORI, Zimmer Biomet ROSA), where the surgeon makes the cuts, the cleared mBos is semi-autonomous, with a robotic arm (built on a KUKA arm) executing the bone cuts itself under AI control within a surgeon-approved, patient-specific CT-based plan and active surgeon supervision.

There is no consumer price: it is pre-commercial enterprise surgical equipment that has not sold any units. Several verified-vs-claimed cap-flags matter. It received FDA 510(k) clearance on March 17, 2025, but the exact K-number could not be independently verified, and the 'semi-autonomous' characterization is sourced to Zimmer Biomet and trade coverage rather than the FDA letter (Monogram's own clearance release described it more softly as robotic-assisted TKA).

A separate fully-autonomous, hands-free, saw-based version is not FDA cleared and remains in development, targeted around late 2027 or 2028; its first live-patient procedure (July 26, 2025, Ahmedabad, India) was under an India CDSCO 102-procedure investigation, not US FDA, a single index case with no verified peer-reviewed outcomes. Monogram was founded by orthopedic surgeon Dr.

Doug Unis (chief medical officer and founder, not CEO; the pre-acquisition CEO was Benjamin Sexson) and was acquired by Zimmer Biomet at about $168M enterprise value plus contingent value rights, with commercialization alongside Zimmer Biomet implants targeted for early 2027. The registry records it at research maturity: cleared but pre-commercial, with its headline fully-autonomous capability still in development.