A Prospective Multicenter Longitudinal Cohort Study of the Mymobility Platform

Prior treatment

• Subject is a current alcohol or drug abuser as defined by the investigator.
• Subject is currently participating in any other surgical intervention, physical therapy or pain management study which would compromise the results of this study.

Other

• Subject is considered a member of a protected population (e.g., prisoner, mentally incompetent, etc.).
• Subject has systemic inflammatory arthropathies which would interfere or compromise the activity profiles within this study.
• Subject requires simultaneous or staged bilateral replacements, staged\<90 days apart. Subjects can be enrolled into the study for the second, staged arthroplasty if scheduled \>89 days after their first, contralateral replacement.

• Subject must be 18 years of age or older.
• Subject qualifies for a primary, unilateral total or partial knee arthroplasty, based on physical exam and medical history.
• Investigator plans to treat subject with a commercially-available device, used on-label according to the manufacturer's instructions for use, as part of their clinical care.
• Subject owns and maintains an iPhone capable of pairing to the Apple Watch, supporting iOS updates and is compatible with the mymobility App.
• Subject is willing and able to complete the protocol required follow-up.
• Subject is able to read and understand the language used in the mymobility App for their region.
• Subject is willing and able to provide written Informed Consent and Authorization by signing and dating the IRB/EC approved Informed Consent Form and Authorization. Where applicable, subject must also be willing to provide authorization for use of protected health information in accordance with local privacy laws.
• Subject is mobile with no more than a single cane/single crutch assist preoperatively.