#46835
Stephen Bird
Keymaster

Nup,

I have never heard of it !

Certainly never been asked to scan it or look for it.

I found a journal article published in the journal of hand surgery before you were born in 1986 with review of over 80 cases.

Here is the URL:

https://www.sciencedirect.com/science/article/abs/pii/S0363502386800533

It states:

Trauma to the hand can result in adhesions between the interosseous and lumbrical muscles with subsequent painful impingement on the deep transverse metacarpal ligament during intrinsic contraction. If these adhesions also develop between the intrinsic muscles and the deep transverse metacarpal ligaments or metacarpophalangeal capsule, discomfort may be produced by stretching of the intrinsic tendons. Release of these adhesions, partial resection of the ligament, and early mobilization can produce relief of the symptoms.

So we can certainly see the interosseous muscles easily and also the lubmricals.
The direction of movement of these muscles is about 90 degrees to each other in my mind.
So can we look at the lumbricals during flexion and extension of the MCP joints watching if the slide easily over the interosseous muscles they are sitting on or if they get stuck due to adhesions.

I think if you scan in the palm of the hand in the long axis of the lumbricals this is worth a try.

The impingement on the deep transverse metacarpal ligament sounds above my pay grade !

Have a crack and see how it goes.

I am home now, but tomorrow I will have a play myself and see how much actual glide there is of these muscles over each other. I am thinking it is going to be minimal even in a normal volunteer.

Steve

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