-osis. 1  1 suffix meaning a (specified) action, process, or result: homeosis, narcosis, zygosis. 2  2 suffix meaning increase in a pathological condition: calcicosis, psittacosis, varicosis. -osis. , pl. Combining form meaning a process, condition, or state, usually abnormal or diseased; production of an abnormal substance, increase of a normal substance, or parasitic infestation.
If non-surgical treatment fails to relieve the symptoms of accessory navicular syndrome, surgery may be appropriate. Surgery may involve removing the accessory bone, reshaping the area, and repairing the posterior tibial tendon to improve its function. This extra bone is not needed for normal foot function.
Many surgical procedures can be performed using minimally invasive techniques (meaning less cutting and entering the body). These techniques result in smaller incisions, shorter hospital stays, less pain after surgery, and a faster recovery. The most typical surgery for a herniated disc is a discectomy. This is a surgical procedure that removes all or part of the damaged intervertebral disc. If the problem is in the neck, this procedure is usually done through the front and is called an anterior discectomy (described in more detail below).