Rock Paper Scissors OK (RPSOK)

URM! anyone for Rock Paper Scissors OK (RPSOK)

Assessment of nerve function after upper limb injury in children has been shown to be poorly documented. The following assessment tool has been shown to improve.


This mnemonic can facilitate the gross assessment of motor function and ease recording of the results.

Designed as a “game” you can use with children, I think it is useful in any hard to assess population. In fact I use it for gross assessment in all my patients with relevant injuries.

Many thanks to Dr Sarah Edwards (@drsarahedwards) for developing this great infographic to go alongside.



URM! – Hand Dermatomes

This doesn’t offer a definitive assessment of motor or sensory function and testing of specific nerve branches maybe required.

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