Articulatio genus

Dear Articulatio genus
You are bothering me
(For those not good with Latin
I'm talking to my knee)

Damage has been done, I fear
Playing rugby once again
Now you fill all of my days
With dull ache, and often pain

Getting comfy is a problem
Especially in bed at night
You make me wakefull, restless
I fear this will be my plight

So on this coming weekend
It'a MRI scan number four
Yes, I'm nothing if not greedy
Having damaged both knees before

I quite like the scanner
The white noise hums and grows
It sends me off to beauty sleep
I need the help, god knows

Then while the experts deliberate
Over many weeks or days
On the best course of treatment
I'll try a thousand ways

To get settled in my slumber
Not be restless, toss and turn
For a night that's uninterrupted
I must confess I yearn