The comparison of anterior knee pain in severe and non severe arthritis of the lateral facet of the patella following a mobile bearing unicompartmental knee arthroplasty

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Table 4 Post-operative ROM, component alignment, post-operative tibiofemoral angle, blood loss, and operative time

Category	Group I (n = 88)	Group II (n = 26)	P
Post operative ROM (°)^a	128.92 ± 5.79 (110–145)	117.69 ± 14.02 (90–130)	<0.001
Post operative tibiofemoral angle (°)^a	6.10 ± 1.35 (1–10)	4.81 ± 1.96 (2–6)	0.003
Femoral alignment (°)^a	5.88 ± 1.57 (2–10)	4.88 ± 1.84 (1–9)	0.02
Tibia alignment (°)^a	0.76 ± 1.02 (2° of valgus–3° of varus)	0.96 ± 1.31 (2° of valgus–3° of varus)	0.41
Posterior slope of tibia (°)^a	6.76 ± 1.86 (2–10)	6.57 ± 2.12 (2–10)	0.67
Blood loss from drain (ml)^a	140.29 ± 82.04 (10–400)	125.79 ± 61.76 (75–120)	0.48
Operative time (mins)^a	97.44 ± 15.33 (65–130)	96.73 ± 15.03 (60–250)	0.86