The piriformis is a majestic muscle that is located deep in the buttocks. It is known as “majestic” because of its prime action as a hip external rotator and helps with abduction. Also, its tightness causes the compression of the sciatic nerve (that runs between the ischium bone and the piriformis muscle), causing piriformis syndrome.
It is a flat, pear-shaped, or pyramidally shaped muscle that runs from the lower spine (sacrum) to the top of the thigh bone (femur).
IMPORTANCE:
It is an important muscle for orthopaedicians because it is used to perform the posterior approach of total hip replacement. During the posterior approach of THR (total hip replacement), the piriformis muscle is cut to gain access to the hip area
There is also a modified posterior approach that involves sparing of the piriformis muscle.
It is important for physiotherapists as well for rehabilitation after hip replacement surgery, as based on the approach of surgery and whether the muscle is cut or spared, the rehabilitation differs.
Also, it is always important for physiotherapists to work on the piriformis muscle because a tight piriformis causes sciatic nerve compression and horrible pain in the buttocks, and even the pain radiates to extremities. According to the condition, which exercise is to be taught and what needs to be modified are also decided.
Hence, even though it is just a muscle, it holds a lot of importance to both orthopaedicians and physiotherapists. So what do you think about the insight? Have you come across such a muscle or know of any such muscle?
Great information. Another leg muscle which is more important is the Soleus (calf) muscle, which acts as a second/peripheral heart by pumping the stagnant venous blood against gravity through the bloodstream.
This is a really well put insight. It clearly shows how a single muscle can have implications far beyond basic anatomy, influencing both surgical decisions and rehabilitation strategies
Very interesting and well‑explained! The piriformis may be small, but its role in movement and its link to conditions like sciatic pain make it a truly important muscle to understand - especially for clinicians involved in musculoskeletal care
This is a great insight showing how one small muscle can have a big clinical impact. The piriformis connects anatomy, surgery, and rehabilitation, especially in hip replacement and sciatic pain. Similar muscles like the iliopsoas and rotator cuff are often overlooked but are crucial for function and pain control. Understanding these muscles helps clinicians treat problems more effectively.
Very informative!! The piriformis muscle is dubbed “majestic” due to its crucial function in stabilizing the hip and enabling rotation, yet its anatomical variations and closeness to the sciatic nerve often turn it into a frequent source of issues.
