OA in the 21st century

Knee osteoarthritis (OA) is the most common musculoskeletal disease in the world, affecting on average circa 20% of the population. In the UK alone, 4.5 million people aged 40–65 suffer from radiographic knee arthritis but not yet suitable for knee replacement.

While Total Knee Arthroplasty (TKA) remains the most adopted surgical treatment particularly in elderly patients with advanced disease, procedures that preserve the natural joint are an attractive option. Given the impending social burden of increased demand for knee replacement, TOKA is a disruptive approach to surgical HTO. Designed to minimise costs within NHS-tariff, Toka combines 3d_printing and digital_imaging technologies for personalised treatment; for the benefits of patients and healthcare providers, relieving the societal cost of knee osteoarthritis.

For young and active people effected with knee osteoarthritis, HTO is the best solution.

Joint preserving treatments for knee osteoarthritis

Without the correction of the patients’ mechanical axes for the redistribution of the forces imposed on the knee by exercise the TKA implant lifespan is reduced, forcing patients to lead a sedentary lifestyle, impacting their overall health and quality of life. TKAs usually require revision with its associated cost and risk of complications, particularly in young patients.

Our approach to High Tibial Osteotomy, where the tibia is modified to redistribute load away from the medial compartment of the knee (where osteoarthritis often begins) offers many advantages, most importantly, an active lifestyle can be resumed.

TOKA is a precision engineered personalised HTO surgical solution, particularly designed for young patients suffering from radiographic knee arthritis but not yet suitable for Knee-Replacement.

The TOKA solution – Simple and Individual

HTO is a craft surgery and requires experienced surgeons to be performed, current market solutions are challenging and present several complications.

With TOKA, each surgery is completely planned around the patient. This begins with the surgical instrument used in the surgery. Compared to existing solutions, this results in less damage to the surrounding tissues, an easier surgery and a greater mechanical strength, resulting in a faster recovery time.

A simple to use surgical guide based on patients’ CT scan containing the exact information to mirror the planned surgery removing the need of intra-operation radiology and measurements.

The TOKA opening mechanism is a unique engineered system to provide precise (bi-planar) opening to guaranty precise leg alignment. A 3D printed titanium cutting and drilling guide is produced, precisely fitting patient’s bone anatomy.

Surgical planning and training software

The integrated approach of TOKA to knee surgery is driven by the suite of software available for surgeons to learn in an interactive 3D environment how different cut angles and ways of carrying out the operation affect patient outcomes. By applying algorithms and computational modelling surgeons can virtually predict the surgery and visualise patients’ outcome such as the resulting distribution of forces, alignment of the leg and likelihood of any complications.

TOKA Surgical Simulator support surgeons with reliable and predictable outcome and precision 3D printing technology to ensures best results and patient comfort.

TOKA also provides benefits to the healthcare provider by rationalising resources with no inventory of stock parts required.