Abstract: A lower limb loading assessment system having at least one motion sensor mounted to a subject's lower limb that is configured to sense the tibial shockwaves experienced by the lower limb as the subject performs a repetitive physical activity involving repetitive footstrikes of the lower limb with a surface. The motion sensor comprises an accelerometer that is configured to sense acceleration data in at least three axes and generate representative acceleration data over a time period associated with the physical activity. The acceleration data represents a series of discrete tibial shockwaves from the discrete footstrikes. A data processor receives the tibial shockwave data and processes that to generate output feedback data comprising data to assist the subject to minimize future loading in their lower limbs.

Abstract: A method of determining the effect of a surgical procedure on a subject's spine. The method includes receiving geometric parameters of the subject's spine, constructing a virtual model of the subject's spine using the geometric parameters, and determining the effect of the surgical procedure on the subject's 5 spine using the virtual model. The virtual model includes node units connected by connector units, where the connector units include virtual springs. The method can also include optimising parameters of a surgical procedure by reducing the error between a target spine and the spine model modified by the surgical procedure. A computer program for performing the method is also described.

Abstract: A lower limb loading assessment system having at least one motion sensor mounted to a subject's lower limb that is configured to sense the tibial shockwaves experienced by the lower limb as the subject performs a repetitive physical activity involving repetitive footstrikes of the lower limb with a surface. The motion sensor comprises an accelerometer that is configured to sense acceleration data in at least three axes and generate representative acceleration data over a time period associated with the physical activity. The acceleration data represents a series of discrete tibial shockwaves from the discrete footstrikes. A data processor receives the tibial shockwave data and processes that to generate output feedback data comprising data to assist the subject to minimize future loading in their lower limbs.

Abstract: A removable wedge for high tibial osteotomy surgery, comprising: a truncated wedge configured to provide a patient specific correction to the weight bearing axis based on 3D data for that patient’s tibia, femur and/or fibula; and an anterior flange configured to locate the partial wedge in a predetermined location on the tibia of that patient. Also a method for pre-operative planning, a method of designing a wedge, a method of printing a wedge a reusable wedge and a prosthetic implant.

Abstract: A method for determining one or more of selection, positioning or placement of a surgical implant, the method includes: predicting function of an impaired anatomical structure in an unimpaired condition; predicting post-operative function of the structure for one or more implants; selecting one or more of the implant, the implant position, or the implant location to improve the predicted post-operative function.

Abstract: A lower limb loading assessment system having at least one motion sensor mounted to a subject's lower limb that is configured to sense the tibial shockwaves experienced by the lower limb as the subject performs a repetitive physical activity involving repetitive footstrikes of the lower limb with a surface. The motion sensor comprises an accelerometer that is configured to sense acceleration data in at least three axes and generate representative acceleration data over a time period associated with the physical activity. The acceleration data represents a series of discrete tibial shockwaves from the discrete footstrikes. A data processor receives the tibial shockwave data and processes that to generate output feedback data comprising data to assist the subject to minimize future loading in their lower limbs.

Abstract: A lower loading assessment system having at least one motion sensor mounted to a subject's lower limb that is configured to sense the tibial shockwaves experienced by the lower limb as the subject performs a repetitive physical activity involving repetitive footstrikes of the lower limb with a surface. The motion sensor comprises an accelerometer that is configured to sense acceleration data in at least three axes and generate representative acceleration data over a time period associated with the physical activity. The acceleration data represents a series of discrete tibial shockwaves from the discrete footstrikes. A data processor receives the tibial shockwave data and processes that to generate output feedback data comprising data to assist the subject to minimize future loading in their lower limbs.