Pain Research and Treatment / 2016 / Article / Fig 1

Research Article

Factors Related to Postoperative Pain Trajectories following Total Knee Arthroplasty: A Longitudinal Study of Patients Admitted to a Russian Orthopaedic Clinic

Figure 1

Pain severity ratings from day of knee replacement surgery (Day 0) through the third postoperative day. The five types of pain ratings all decreased in a similar pattern across the first three days after surgery (all main effects for time had ). Hours in moderate to severe pain (NRS ≥ 4) are not included in the figure but showed a similar decreasing trend over time ().

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