Distal femoral osteotomy versus lateral unicompartmental arthroplasty for isolated lateral tibiofemoral osteoarthritis with intra-articular and extra-articular deformity: a propensity score-matched analysis

Table 2 Outcome data for patients undergoing opening-wedge DFO versus lateral UKA for lateral unicompartmental osteoarthritis

		Opening-wedge DFO group (N = 29 patients)	Lateral UKA group (N = 29 patients)	p-value
OKS score mean (SD)	Pre	27.51 (6.80)	26.23 (4.41)	0.40
	Post	38.59 (8.24)	35.43 (6.8)	0.75
	Delta	11.54 (4.92)	12.82 (4.68)	0.35
KOOS score mean (SD)	Pre	51.14 (6.3)	50.12 (5.8)	0.42
	Post	67.2 (8.80)	65.91 (8.0)	0.63
	Delta	16.8 (4.69)	17.3 (7.6)	0.95
Postoperative alignment
	HKA	−3.26 (1.02)	−3.0 (1.4)	0.65

Data are expressed as mean and standard deviation (SD). Pre preoperative, Post postoperative, Delta difference between postoperative and preoperative results, HKA hip-knee-ankle angle. Negative values are used for valgus alignment

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