What's the difference between crookbacked and gibbous?

Crookbacked

Definition:

Example Sentences:

Definition:

(a.) Swelling by a regular curve or surface; protuberant; convex; as, the moon is gibbous between the half-moon and the full moon.
(a.) Hunched; hump-backed.

Example Sentences:

(1) However, as each condition is rare, the occurrence of both gibbous deformity due to Hurler's and diastematomyelia in the same child, makes it unlikely to be a chance association.
(2) Twenty-two patients with Pott's disease and symptoms of back pain, gibbous deformity, and neurological deficit underwent thoracotomy.