The average KOS change score for patients with knee injury patients treated during the observation period will be reported. Additionally, a risk-adjusted KOS change difference score will be calculated by subtracting the predicted KOS change score from the average KOS change score for each patient, then average the adjusted scores for each physical or occupational therapist (PT or OT) or PT or OT group. The risk adjustment will be calculated using generalized linear modelling adjusting for: baseline KOS score, baseline pain score, age, sex, smoking, comorbidities, payer, and symptom duration (time from surgery or injury to baseline PT/OT visit). These measures will serve as a PT/OT performance measure at the eligible PT/OT or PT/OT group level. Rate 1: Average KOS Change Score, Rate 2: Risk-adjusted Average KOS Change Score.