Proliance Leads the Way in Patient-Reported Outcomes for Total Hip & Knee Arthroplasty

Patient-reported outcomes (PROs) are increasingly being used by payers and the public as a way to determine quality for surgeons. Although they must always be viewed in combination with clinical evidence of quality, PROs reflect how our patients feel about their surgeries. For total hip and knee procedures, we have the patients evaluate their surgeries using the HOOS and KOOS Jr. surveys, which evaluate both decrease in pain and return to typical activities of daily living (ADL).

Not surprisingly, Proliance surgeons have excellent HOOS and KOOS outcomes. For total hip replacement procedures (not including revisions), a difference in HOOS score between periods of 21.6 points reflects a noticeable change in pain (called a minimal detectable change, or MDC).1 In other words, a change of 21.6 points or more is a statistically relevant or ‘real’ change in level of pain. For improvement in return to typical activities, a difference in HOOS score between periods of 17.7 points reflects a ‘real’ change in ability to return to ADL. For Proliance patients, real changes are apparent as quickly as 14 days after surgery.

For total knee replacement procedures (not including revisions), the MDC for pain is a difference in KOOS score between periods of 20.2 points. For improvement in return to typical activities, a difference in KOOS score between periods of 20.8 points reflects a ‘real’ change in ability to return to ADL. Consistent with the literature, the healing time for knees is longer than that for hips. Nevertheless, Proliance patients see real changes as quickly as 90 days after surgery.