Symptomatic anterior cruciate ligament tears treated with percutaneous injection of autologous bone marrow concentrate and platelet products: a non-controlled registry study

Table 3 MRI ImageJ values

Variable	Mean	SD	Median	Lower quartile	Upper quartile	Minimum	Maximum	p value
Mean gray value	− 15.5	17.6	− 13.2	− 24.6	− 3.9	− 53.1	14.4	0.0015
Mode gray value	− 17.6	23.8	− 15.0	− 33.5	− 5.25	− 55.0	35.0	0.0025
Median gray value	− 15.6	19.0	− 13.5	− 26.5	− 0.5	− 54.0	19.0	0.0018
Skewness	0.16	1.0	0.2	− 0.4	0.8	− 2.4	2.3	0.3720
Raw integrated density	− 170,000	179,000	− 135,000	− 273,000	− 44,700	− 5,140,000	171,000	0.0003

p-values note significant differences in values from pre- to post-treatment. A negative value indicates a darker gray value which suggests more ligament healing

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