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Table 5 Range of motion following total knee arthroplasty

From: Percutaneous periarticular multi-drug injection at one day after total knee arthroplasty as a component of multimodal pain management: a randomized control trial

Duration after surgery Additional periarticular injection (21 patients) No additional injection (20 patients)
Flexion angle*
 Postoperative day 1 71 ± 13 71 ± 13
 Postoperative day 2 77 ± 10 80 ± 8
 Postoperative day 3 87 ± 10 85 ± 9
 Postoperative day 4 92 ± 9 90 ± 10
 Postoperative day 5 94 ± 10 94 ± 9
Extension angle†
 Postoperative day 1 −8 ± 3 − 8 ± 5
 Postoperative day 2 − 8 ± 3 − 9 ± 5
 Postoperative day 3 −7 ± 3 − 8 ± 4
 Postoperative day 4 −6 ± 4 −7 ± 4
 Postoperative day 5 −6 ± 4 −6 ± 5
  1. Results are expressed as means ± standard deviation
  2. *Repeated measures analysis of variance showed that the additional periarticular injection was not associated with the difference of the flexion angle (p = 0.75)
  3. † Repeated measures analysis of variance showed that the additional periarticular injection was not associated with the difference of the extension angle (p = 0.59)