Technology

Dynamic Spacer Block for Total Knee Replacement

Creating objective, data driven outcomes in orthopedic joint surgery.

Real-time Feedback

When the block is placed between the bone it provides objective force data (both static and dynamic) which will allow proper assessment of the bone resections and tension within the surrounding soft tissues.

Adaptable Design

The capacity to alter the dimensions of the block allows for its utilisation at any stage of the surgical procedure. Surgeons can therefore make informed decisions throughout the entirety of the operation.

Ease of Use

It is a smart version of a familiar surgical instrument, the gap spacer block, delivering an accessible use case to surgeons and minimising additional training requirements. The device can accommodate any surgical approach or instrument system. 

Cost Scalability

Currently most other competing technology is very expensive and therefore has limited market penetration even in sophisticated health care systems. These technologies therefore remain inaccessible to many hospitals and surgeons, limiting the potential benefits to only a small market-share.

Better Outcomes

Device data will be captured to assist in driving future technical developments and to provide surgeons with defined reports that may provide value from a medicolegal perspective. This will contribute to clearer documentation regarding the events within theatre, a resource for both reflection and education.

Knowledge Transfer

The design and key concepts underpinning the device come from the extensive TKR experience of the DSB Co team. Drs McAuliffe and Miles are experienced high volume TKR surgeons, both of whom are ABC Travelling Fellows. The fellowship is one of the most prestigious of its kind and recognises an individual’s research and clinical excellence.

Healthcare Professionals
Current analog spacer block technology
Welcome To DSB

A look at TKR Today

The use of technology in Total Knee Replacement (TKR) surgery is increasing all over the world. In Australia 62.3% of TKR procedures involve technology (computer navigation, patient specific 3D printed surgical guides, robotic platforms). All major markets are seeing technology increasingly utilised. The primary benefit of the technology is that it gives surgeons objective data during the operation which allows for better intra-operative decision making. In turn this then improves patient outcomes and provides overall health system savings. It is for these reasons that surgeons and health systems are demanding this data. The issue is how to provide valuable data in a cost-effective manner that is available to all surgeons and health systems.

This block is placed between cut bone surfaces and the surgeon levers on the block or limb to “feel” whether the overall looseness versus tightness of the construct is optimal. The block can vary in thickness by attaching plastic shims to accommodate varying amounts of bone resection. Shims are attached statically so the block is simply uniformly thicker or thinner. The space the block is placed into may not be uniform. The spacer block is a standard piece of equipment for a TKR procedure, so all surgeons are familiar with it. The standard spacer block provides no objective data.

Solving

Creating Data Driven Outcomes

The DSB will help drive better future outcomes: The device data will be captured to in order drive future technical improvements and give surgeons defined reports which will be valuable from a medicolegal perspective. This will allow surgeons to better document what happened in theatre for their own notes and to enable learning. For DSB Co this data will become valuable in its own right. Experienced, proficient surgeons are currently able to make informed intra-operative decisions through manual manipulation of the knee joint. By capturing the data and outcomes from these experienced surgeons, analysing trends, and through algorithms, we envisage our second-generation device being able to help guide less experienced or lower volume surgeons during procedures. Our device could equally be adapted to work with surgical robots to help give them the ability to truly feel the loads within the joint, and thus improve their decision-making ability.

The Dynamic Space Block system is currently not yet approved for sale.

Dynamic Spacer Block
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Reach out to us if you want to know how you can be involved with DSB, or if you simply want to learn more about our technology.

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