Maximize Your OR Space with the Power of Handheld Robotics
As orthopedic surgery embraces the era of robotic assistance, many institutions are evaluating not only clinical efficacy but also practical constraints such as space, cost, and infrastructure. Traditional robotic platforms offer high levels of precision and reproducibility, but they require robotic arms and larger bedside footprints that can occupy valuable real estate in the operating room. This requirement can limit the feasibility of these devices, especially in smaller operating rooms, ambulatory surgical centers, and resource-conscious institutions.
The development of the TMINI® Miniature Robotic System has emerged as a solution to the limitations of bulkier robotic systems. This miniature, handheld, wireless robotic system offers the precision and safety of larger systems within a surgeon-controlled, compact design.1 This system is able to maintain the core benefits of robotics, accuracy, and patient-specific surgical planning, without compromising OR efficiency or layout.
This article outlines the case for handheld robotics in orthopedics and reviews their capabilities, advantages, and growing role in today’s surgical environments.
What Are Handheld Surgical Robots?
Handheld robotic systems for knee replacement are advanced, surgeon-operated tools designed to enhance precision, accuracy, and consistency during joint replacement procedures. Unlike large, robotic arm platforms that require side-line-of-sight cameras and an additional screen console, these devices are compact, mobile, and easily integrated into the surgeon’s workflow. They combine the skill and decision-making of the surgeon with the accuracy of robotic-assisted technology.
The TMINI® Miniature Robotic System for knee arthroplasty includes:
- The TMINI Robot—a miniature wireless handheld robotic system specifically designed to facilitate the accurate and precise placement of implants.
- The overhead TMINI Navigation Console—camera automatically detects smart tools in real time, with overhead active tracking allowing unrestricted patient access with minimal bedside robotic footprint.
- Preoperative planning with TPLAN® Planning Software—auto-segments the CT-scan into a 3D surgical model to plan a patient-specific TKA. This planning is provided as a service by THINK Surgical’s Case Planning team.
- Intraoperative adjustments with the TMINI PROTM Workflow—Dynamic data capture and real-time feedback allow surgeons to make positional adjustments to help fine-tune implant positioning and stability.
The TMINI offers sub-millimeter accuracy and precision1, providing positional feedback to help the surgeon remove only the planned bone resections and preserve healthy structures. For robotic-assisted total knee arthroplasty (raTKA), this can mean more accurate alignment and potentially improved soft tissue balance that could result in long-term implant function.
How Do They Help Save Space in the OR?
One of the greatest operational advantages of handheld robotic-assisted knee replacement systems is their minimal footprint in the operating room.
Traditional large-console robotic platforms often require:
- A dedicated multi-jointed robotic arm.
- Optical tracking cameras positioned on the contralateral side of the patient, creating a ‘no-go zone’ in the operating room.
- Multiple additional instrument trays.
- Separate workstations or planning consoles.
These components add the robotic arm to the surgical environment, limit the positioning of assistants due to tracking cameras, and require surgical techs to manage more trays. In some facilities, large robotic systems even require dedicated operating rooms or significant rearrangements of equipment to accommodate them.
By contrast, handheld robotic systems:
- Only occupy a small amount of table space with a single instrument tray.
- Allow the surgeon to move freely, and overhead monitoring provides the surgical team with full access to the patient.
- Integrate seamlessly into standard surgical layouts—especially valuable in ambulatory surgery centers (ASCs) and high-volume joint replacement programs.
- Can be moved between ORs quickly, allowing a single unit to serve multiple rooms in one day.
Can Handheld Robots Do the Same Work as Larger Systems?
Despite their smaller size, handheld robotic-assisted knee replacement systems have been shown to provide accurate and reproducible surgical outcomes similar to larger robotic systems.1
Bone Resection and Ligament Balancing
In raTKA, the TMINI® Miniature Robotic System uses patient-specific mapping, from preoperative CT scans, to guide cutting jig placement and bone cuts. This enables surgeons to accurately resect bone according to their plan and protect surrounding soft tissue. The CT-guided workflow allows for patient-specific adjustments to achieve accurate joint balancing at the time of surgery. The combination of improved accuracy and soft tissue balancing is critical for patient satisfaction, implant longevity, and reducing revision rates.
Real-Time Intraoperative Feedback
The CT-based three-dimensional surgical planning and the TMINI PRO™ Workflow provide live positional guidance without requiring the surgeon to step away from the sterile field. Surgeons can verify alignment, tibial slope, femoral rotation, and resection depths instantly. Handheld systems allow for immediate adjustments during surgery based on real-time data and tactile sensation, an important advantage in cases with unexpected anatomical variation.
Overall, handheld robotic systems can deliver the same precision and consistency as devices with robotic arms during total knee arthroplasty.1 In addition, the use of handheld devices can reduce disruptions to the surgeon’s workflow, improve patient access during the procedure, and require shorter setup times.
3 Reasons Hospitals Are Choosing Handheld Robotics Today
The adoption of handheld robotic-assisted knee replacement systems is accelerating across hospital networks and ambulatory surgery centers due to a combination of clinical, financial, and operational benefits.
1. Improved Outcomes and Patient Satisfaction
Clinical studies on robotic-assisted procedures have demonstrated better alignment accuracy, fewer outliers, and improved early functional outcomes compared to manual techniques. Patients benefit from reduced postoperative pain, shorter hospital stays, and a greater probability of being discharged home, key metrics in value-based care models.
2. Shorter Learning Curve
Handheld systems preserve the manual dexterity and tactile control of traditional instruments while adding robotic-guided accuracy. This makes the technology easier for surgeons to adopt, often requiring only a short learning curve before full integration into practice.2 Surgeons can operate in a familiar workflow while still gaining the benefits of real-time robotic assistance.
3. Outpatient Surgery Compatibility
With the rapid shift toward same-day discharge in joint replacement and minimally invasive surgery, compact and portable robotics have a distinct advantage. Handheld systems:
- Take up less OR space.
- Require only one tray of robotic instruments for sterilization.
- Allow for faster case turnover and minimal setup delays with an average setup time of six minutes.2
This makes them especially appealing for high-efficiency ASCs where space and time are at a premium.
Final Takeaway: Small Size, Big Clinical Value
Handheld robotic-assisted knee replacement systems, such as the TMINI® Miniature Robotic System, embody this balance. This system delivers the accuracy, reproducibility, and patient-specific planning traditionally associated with large-console robotic platforms, yet in a compact, mobile, and surgeon-controlled format that enhances rather than disrupts the surgical environment.1,2
Its space-saving design eliminates the need for bulky robotic arms, dedicated rooms, or major OR rearrangements, allowing seamless integration into existing workflows. The ability to move a single device between operating rooms maximizes utilization and return on investment. For hospitals and ASCs focused on efficiency, this flexibility is invaluable.
From a clinical standpoint, handheld systems provide sub-millimeter accuracy1 and offer assistance in ligament balancing and implant positioning. This may translate into fewer alignment outliers, better soft tissue preservation, and improved early functional outcomes. Combined with a short learning curve2 and compatibility with same-day discharge programs, these devices meet the demands of modern, value-based care.
For orthopedic surgeons, handheld robotics preserves the feel and control of traditional instruments while improving precision and confidence2 in every case. The overhead active tracking system makes it easy to see how TMINI gives you more room to operate.
1 Data on file. Data is based on TMINI System-assisted placement of cut guide compared to planned placement.
2 Data on File, TS-24-058 RevA TMINI Limited Market Release Observational Study. Study included 7 surgeons who completed at least 15 procedures with the TMINI System. Set up time is an average over 25 cases and data excludes TMINI System warm up time.
MKG-25-106 Rev01