The purpose of this study is to determine the impact of surgical fixation (cancellous screws versus sliding hip screws) and biologic intervention (Vitamin D versus placebo) on patient important outcomes.

The purpose of this study is to assess clinicians' experiences and perceptions of prehabilitation education and determine necessary measures for improving educational programming based on the perspective of clinicians who are working with osteoarthritis hip or knee patients.

The purpose of this study is to assess patients' experiences and perceptions of pre-operative education and determine necessary measures for improving educational programming based on the perspective of patients who are undergoing total knee replacement surgery.

Being physically active can reduce pain and fatigue, improve mobility and enhance quality of life in people with arthritis, but adherence to an active lifestyle is poor, with less than half of people with arthritis being active.

The Hip Health Information Project (HHIP) is a study investigating the experiences and perceptions of pre-surgical education to prepare patients with osteoarthritis (OA) of the hip for hip replacement surgery.

The purpose of this randomized controlled trial is to assess the efficacy of an e-health intervention, OPERAS, which includes two components:

To determine if Far Cortical Locking screws increase fracture healing rates at 3 months in Closed Distal Femur Fractures in adults when compared to standard locking screw constructs.

Fracture healing at 3 months will be assessed via x-ray and clinical assessment of the fracture.

At the Falls Prevention Clinic, each subject receives a comprehensive assessment of his or her individual risk factors for falling in addition to a comprehensive medical examination. Recommendations and appropriate followup tests and referrals are ordered for patients on an individual basis.

The overall purpose of this study is to assess the feasibility of a cross-country non-inferiority randomized controlled trial (RCT) comparing midline sparing decompression alone (MSDA) to usual care (decompression with fusion).

WiiNWALK is a 4 week physical activity, with the intervention of a WiiFit, targeted to improve walking capacity in individuals with either a unilateral below-knee or above-knee amputation.