Osteoarthritis (kireçlenme) is a degenerative joint disease characterized by the breakdown of cartilage, leading to pain and reduced mobility in affected joints. The specific symptoms of osteoarthritis depend on which joint is involved and the severity of the condition.

Common Symptoms Across Joints:
* Pain in the affected joint (e.g., knee, neck, hip).
* Stiffness, especially after periods of inactivity or in the morning.
* Limited range of motion.
* Clicking, popping, or grinding sounds (crepitus) with movement.
* Swelling or tenderness in the joint.
* Gait instability or difficulty with balance (if lower limbs are affected).

Specific Manifestations:

* Knee Osteoarthritis: Presents with severe pain during walking and climbing stairs, knee locking, and a sensation of grinding or clicking within the joint.
* Cervical (Neck) Osteoarthritis: Can cause headaches and neck pain, pain radiating to the arms, neck stiffness, weakness, numbness, burning, or tingling in the arms and hands, reduced dexterity in the hands, tinnitus, dizziness, and blurred vision.
* Spinal Osteoarthritis: Occurs when the lubricating fluid within the vertebral joints diminishes, causing the small joints of the spine to gradually lose function. This leads to a loss of spinal flexibility, thickening of bones, and potential nerve compression. Symptoms include restricted movement accompanied by pain, postural deformities such as kyphosis (hunchback), increased lumbar lordosis, or lateral spinal curvatures. Patients may experience severe, 'punched' pain, and complications like vertebral slippage or spinal canal stenosis can develop.
* Hip Osteoarthritis: Primarily characterized by pain. Initially, pain may subside with rest, but as the disease progresses, rest becomes ineffective, necessitating pain medication. In advanced stages, severe pain relievers are required due to increased deformation, and treatments like physical therapy and injections may no longer provide relief, often leading to the eventual need for surgery.
* Otosclerosis (Ear Osteoarthritis): Known medically as otosclerosis, this condition involves the formation of spongy bone at the entrance of the inner ear due to deterioration of its bony wall, leading to calcification and immobility of the stapes bone. Symptoms include tinnitus and progressive hearing loss in one or both ears. It is crucial to note that these symptoms can indicate other conditions, underscoring the importance of a thorough patient history and detailed examination for accurate diagnosis.