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Table 2 Comparison of clinical and radiological measurements between groups

From: Robotic-assisted vs conventional surgery in medial unicompartmental knee arthroplasty: a clinical and radiological study

  UKA-R UKA-C P
BS OKS 17 (6–41) [11–23] 18 (12–30) [15–21] 0.34**
BS Pain NRS 6 (2–10) [5–7] 7 (2–10) [6–8] 0.52**
Lengh of hospital stay (days) 2 (1–4) [2–3] 2 (1–3) [2–2] 0.25**
Surgery time 139 (125–156) [129–72] 106 (85–131) [98–124] < 0.01**+
Sagital femoral angle 46 (42–57) [44–47] 48 (33–65) [44–53] 0.47**
aMDFA 98 (95–101) [97–99] 101 (96–105) [98–103] 0.02**+
aMPTA 86.9 (83–92) [85–88] 85.3 (81–97) [83–86] 0.26**
Slope 4.4 (1.7–7.0) [3.3–5.1] 5.3 (0.7–10.0) [3.8–6.9] 0.09**
Incorrect size 0 (0%) 4 (22%) 0.07*
Post-operative OKS 45 (37–47) [41–47] 39 (23–48) [37–42] 0.01**+
Post-operative pain NRS 1 (0–3) [0–1] 4 (0–9) [2–6] < 0.01**+
  1. UKA-R robotic-assisted unicompartmental knee arthroplasty, UKA-C conventional unicompartmental knee arthroplasty, BS before surgery, NRS numerical rating scale, aMDFA anatomical medial distal femoral angle, aMPTA anatomical medial proximal tibial angle, OKS Oxford Knee Score
  2. *Fisher’s exact test; **nonparametric test median; + significant difference