1) Bone inflammation 2) Inflammation 3) Redness 4) Rubor 1) Osteomyelitis 2) Ostitis 
Osteitis is a general term for inflammation of bone. More specifically, it can refer to one of the following conditions: ...
• (n.) Inflammation of bone.
(os″te-i´tis) inflammation of bone, often with enlargement, tenderness, and a dull, aching pain.
Os`te·i'tis noun [ New Latin See Osteo- , and -itis .] (Medicine) Inflammation of bone. 
Type: Term Pronunciation: os′tē-ī′tis Definitions: 1. Inflammation of bone. Synonyms: ostitis
Osteitis: Osteitis is inflammation of the bone. For example, patients with what is called the SAPHO syndrome develop osteitis -- the O in SAPHO stands for oteitis -- and the bone inflammation typically affects the sacroiliac joints (sacroiliitis) and the spine (spondylitis). This leads to pain and stiffness in the back and neck.
Inflammation of a bone.
[n] - inflammation of a bone as a consequence of infection or trauma or degeneration
inflammation of bone 
noun inflammation of a bone as a consequence of infection or trauma or degeneration
inflammation of the substance of bone.