Tibiofemoral joint structural change from 2.5 to 4.5 years following ACL reconstruction with and without combined meniscal pathology

Table 2 Mean (SD) baseline and follow-up tibial cartilage volume (mm³) with mean change (95% confidence interval)

Site	ACLR isolated (n = 32)				ACLR combined (n = 25)				Controls (n = 9)
Site	Baseline	Follow-up	Mean change	P value	Baseline	Follow-up	Mean change	P value	Baseline	Follow-up	Mean change	P value
Medial tibia	2043.3 (553.0)	2134.3 (594.4)	91.0 (18.2, 163.7)	0.02*	2245.1 (468.9)	2354.6 (506.2)	109.4 (27.2, 191.7)	0.01*	2663.0 (800.7)	2818.7 (825.6)	155.7 (71.2, 240.1)	0.003*
Lateral tibia	2669.1 (696.0)	2788.3 (724.1)	119.2 (40.6, 197.7)	0.004*	2918.7 (795.7)	3007.5 (835.4)	88.8 (3.0, 174.6)	0.04*	3241.2 (903.7)	3246.2 (963.3)	5.0 (− 125.3, 135.3)	0.93

* Significant difference (P < 0.05). Cartilage volume change = follow-up - baseline, thus positive values represent a cartilage volume increase

ISSN: 1471-2474