Hi
In the N.A at Kew there is a medical record for Frederick John Foot of the DCLI regimental number 23812, it's .5mb in size reference number WO 372/7/104367 and can be downloaded for £3.50, it might tell you what you are looking for, also on FindMyPast there is a record of a witness statement by F J Foot of the DCLI about the injury to Lt/Cpl Dixon on 28th Oct 1917 at Gonnelieu.
leka