Hi and thanks for the query,
It is possible that it stems from the fall. However, MRIs and X rays being quite normal might force us to open minds and think of other possibilities. It is however necessary to carry out a detailed physical examination. Non traumatic or problems unrelated to the fall are a possibility too in this case. Any notions of swelling, fever
or joint pain must be seriously sought for. Consult an internist for a complete clinical review. The services of a physiotherapist might help as you await a more in depth evaluation. Thanks and kind regards.
Bain LE, MD