The objectives of this study are to evaluate the performance and safety of the Vantage Total Ankle System. This study will follow subjects for a period of up to 10 years post-surgery.
Study Type
OBSERVATIONAL
Enrollment
370
Mayo Clinic
Jacksonville, Florida, United States
RECRUITINGDuke Department of Orthopaedic Surgery
Durham, North Carolina, United States
RECRUITINGAOFAS
American Orthopedic Foot and Ankle Society Score (AOFAS) - Questionaire on pain (40 points), function (45 points) , and alignment (15 points) - 100 points score where 100 indicates a healthy midfoot
Time frame: Through study completion, an average of 1 per year
SMFA
Short Musculoskeletal Function Assessment (SMFA) Score - 46 items Patient questionnaire divided into two sections: 34 questions on patients function assessment and 12 questions covering how bothered patients are by their symptoms where 1 indicates no problems/no difficulty/ not bothered and 5 indicates unable to do/symptoms all the time/being greatly bothered
Time frame: Through study completion, an average of 1 per year
SF-36
Short Form Health Survey (SF-36) Score - 36-item patient-reproted survey of patient health - It consists on 8 scales: Physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health. Each scale is transformed into a 0-100 scale where the lower score indicates the more disability and the higher score the lest disability
Time frame: Through study completion, an average of 1 per year
Sports Frequency Score
Sports Frequency Score - Level of sport activity in leisure time where 0 indicates "no sports activity" and 4 indicates "professional level of sports activity, elite athlete
Time frame: Through study completion, an average of 1 per year
VAS Pain and Patient Satisfaction Score
Visual Analog Scale (VAS) Score - Range of scores from 0-100 to indicate level of pain - Higher score indicates greater pain intensity
Time frame: Through study completion, an average of 1 per year
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