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Anterior osteophytes are bone spurs that develop on the front, or anterior aspect, of the vertebrae.They appear to be more common in the cervical spine (neck) than in other spinal segments, as the neck is considerably more prone to degenerative conditions that contribute to osteophyte formation.nterior osteophytes develop on the front side of the vertebrae, largely because the spineâs structure allows the anterior side to compress further than the posterior.
Osteonecrosis is a disease characterized by a derangement of osseous circulation that leads to necrosis of osseous tissue. Osteonecrosis of the knee has been divided into two separate entities: spontaneous osteonecrosis of the knee (SPONK) and secondary osteonecrosis. [1, 2] A rare form that is sometimes considered a separate entity is postarthroscopy osteonecrosis, which affects patients who have undergone arthroscopic knee surgery, most commonly meniscectomy.