Table 3 The distance between the posterior edge of tibial plateau bone cortex and popliteal artery at different angles of knee flexion and in different States

No water injection

6.5 ± 0.3

6.9 ± 0.2

6.0 ± 0.4

<0.01

<0.01

<0.01

Simple intra-articular injection with water

7.9 ± 0.3

7.6 ± 0.2

7.6 ± 03

<0.01

<0.05

>0.05

Intra-articular injection with water and assist distraction with shaver

7.8 ± 0.3

9.4 ± 0.4

7.4 ± 0.3

<0.01

<0.01

<0.01

P⁴

<0.01

<0.01

<0.01

-

-

-

P⁵

<0.01

<0.01

<0.01

-

-

-

P⁶

>0.05

<0.01

>0.05

-

-

-