Autogenous structural bone graft reconstruction of ≥ 10-mm-deep uncontained medial proximal tibial defects in primary total knee arthroplasty

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 4 Relation between preoperative variables and the last follow-up Western Ontario and McMaster Universities Arthritis Index (WOMAC)

Preoperative variables	Last follow-up WOMAC	P-value*
Preoperative variables	Median (IQR)	P-value*
Age
< 70 years	28 (27–35)	0.186
≥ 70 years	35 (27.3–35)
Gender
Male	30 (27–35)	0.621
Female	31 (27–38)
BMI classification
Overweight (25–29.9)	27.3 (27–33)	0.007
Obesity class I (30–34.9)	31 (27–35)
Obesity class II (35–39.9)	40 (37.5–40.2)
Obesity class III (≥ 40)^#	–
Side of arthroplasty
Right	28 (27–35)	0.801
Left	31 (27.2–35)
Preoperative aFTA
10–25° varus	30 (27–35)	0.836
> 25° varus	33 (27–35)
Preoperative flexion contracture
≤ 10°	33 (27.3–38)	0.120
> 10°	28 (26–35)

IQR interquartile range, BMI body mass index, aFTA anatomical femorotibial angle
^* Statistically significant at P ≤ 0.05
^# Excluded from the comparison due to small number of cases (n = 1)