Objective assessment of exploratory behaviour in schizophrenia using wireless motion capture.

Motivation deficits are a prominent feature of schizophrenia and have substantial consequences for functional outcome. The impact of amotivation on exploratory behaviour has not been extensively assessed by entirely objective means. This study evaluated deficits in exploratory behaviour in an open-field setting using wireless motion capture.

Longitudinal migration and inducible displacement of the Mobility Total Ankle System.

Background And Purpose: RSA can be used for early detection of unstable implants. We assessed the micromotion of the Mobility Total Ankle System over 2 years, to evaluate the stability of the bone-implant interface using radiostereometric analysis measurements of longitudinal migration and inducible displacement.

Patients And Methods: 23 patients were implanted with the Mobility system.

Validation and precision of model-based radiostereometric analysis (MBRSA) for total ankle arthroplasty.

Background: The goal of this study was to design a RSA marker insertion protocol to evaluate the stability of the bone-implant interface of a TAA prosthesis, and to validate that this marker insertion protocol can be combined with MBRSA technology to provide clinically adequate precision in assessing the micromotion of the TAA prosthesis.

Methods: The Mobility™ Total Ankle System was used in this study. A marker placement protocol was developed with a Phantom Protocol.