page_title: Osteoarthritis
section_title: Joint injections
hierarchical_section_title: Osteoarthritis / Management / Medication / Joint injections
caption_attribution_description: English: Ultrasound-guided hip joint injection by anterior longitudinal approach. An arrow parallel to the long axis of the transducer is drawn on the skin adjacent to the end of transducer where the needle will be introduced.
context_page_description: Osteoarthritis is a type of joint disease that results from breakdown of joint cartilage and underlying bone. The most common symptoms are joint pain and stiffness. Usually the symptoms progress slowly over years. Initially they may only occur after exercise, but can become constant over time. Other symptoms may include joint swelling, decreased range of motion, and, when the back is affected, weakness or numbness of the arms and legs. The most commonly involved joints are the two near the ends of the fingers and the joint at the base of the thumbs; the knee and hip joints; and the joints of the neck and lower back. Joints on one side of the body are often more affected than those on the other. The symptoms can interfere with work and normal daily activities. Unlike some other types of arthritis, only the joints, not internal organs, are affected.
  Causes include previous joint injury, abnormal joint or limb development, and inherited factors. Risk is greater in those who are overweight, have legs of different lengths, or have jobs that result in high levels of joint stress.
caption: Ultrasound-guided hip joint injection: A skin mark is made to mark the optimal point of entry for the needle.[92]
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