Computer-assisted total knee arthroplasty using mini midvastus or medial parapatellar approach technique

Table 1 Demographics & baseline characteristics

	MIS (n = 36)	Conventional (n = 33)	p-value
Sex (F/M)^e	23/13	22/11	0.81^b
Age (years)^f	65.14 ± 8.35	64.88 ± 6.78	0.89^a
BMI (kg/m²)^f	28.26 ± 2.81	28.56 ± 2.93	0.67^a
Side of operation (R/L)^e	22/14	18/15	0.95^b
Diagnosis (Primary/Posttraumatic OA)^e	35/1	33/0	0.52^d
Chair rise (yes/no)^e	26/10	25/8	0.74^b
Anterior knee pain (yes/no)^e	27/9	26/7	0.71^b
Quadriceps strength (fair/good – can break/good – can’t break)^e	1/16/19	0/21/12	0.21^c
KSS^f	108.91 ± 26.42	99.36 ± 25.02	0.13^a
WOMAC^f	78.08 ± 12.92	76.39 ± 10.56	0.56^a

^aStudent’s t-test, ^bPearson χ²-test, ^clikelihood ratio χ²-test and ^dFisher’s Exact test
^eValue are numbers. ^fValues are mean ± sd

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