Table of Contents
What is popliteal line?
popliteal line > soleal line. A ridge which extends obliquely downward and medially across the back of the tibia from the fibular articular facet; it gives origin to the soleus muscle. Synonym: linea musculi solei, line for soleus muscle, linea poplitea, popliteal line.
Where is the soleal line of the tibia?
posterior The posterior surface of the tibia presents, at its upper part, a prominent ridge, the soleal line (popliteal line in older texts), which extends obliquely downward from the back part of the articular facet for the fibula to the medial border, at the junction of its upper and middle thirds.
Where is the popliteus located?
The popliteus muscle originates from the lateral surface of the lateral condyle of the femur by a rounded tendon. Its fibers pass downward and medially. It inserts onto the posterior surface of tibia, above the soleal line.
What is popliteus?
Medical Definition of popliteus : a flat muscle that originates from the lateral condyle of the femur, forms part of the floor of the popliteal space, and functions to flex the leg and rotate the femur medially.
What attaches to popliteal line?
The soleal line, also known as the popliteal line (in older texts), is a prominent ridge on the posterior surface of the tibia. It is the site of many muscle origins and insertions, such as those of popliteus muscle, soleus muscle, flexor digitorum longus muscle, and tibialis posterior muscle.
What is a popliteal bursa?
A popliteal bursitis is swelling that is caused from fluid coming from the knee joint that protrudes to the back of the knee.
What is the tibial plateau?
The tibial plateau is an important weight-bearing part of the body that connects the thighbone (femur) to the shinbone via ligaments. A fall from a height or a hit to the thigh can drive the femur into the shinbone, creating a compressive force.
Where is the Gerdy’s tubercle?
proximal tibia Gerdy’s tubercle was named after the French surgeon and anatomist Pierre Nicholas Gerdy’s. It is the insertion site of the iliotibial band and is located 23 cm lateral to the tibial tubercle on the proximal tibia.
Where is the fibular notch?
tibia The fibular notch of the tibia is an indentation at the inferior portion of the tibia where it articulates with the fibula to form the inferior tibiofibular articulation.
What is the function of popliteus?
Despite its small size, the popliteus is a major stabilizer of the knee. The popliteus is involved in both the closed chain phase and open-chain phase of the gait cycle. During the closed chain phase, which is when the foot is in contact with the ground, the muscle externally rotates the femur on the tibia.
What compartment is the popliteus in?
The deep posterior compartment muscles include the flexor hallucis longus, flexor digitorum longus, tibialis posterior and popliteus muscles.
Is popliteus superficial or deep?
Anatomical Parts The popliteal fossa (sometimes referred to colloquially as the knee pit, or poplit) is a shallow depression located at the back of the knee joint. The bones of the popliteal fossa are the femur and the tibia. The roof is formed by (from superficial to deep): skin.
How do you treat a popliteus injury?
Medical Management. The treatment for popliteus tendinopathy includes rest, ice application, elevation, an elastic wrap, physical therapy, and nonsteroidal anti-inflammatory medication for pain, such as aspirin or ibuprofen.
Does popliteus flex knee?
Right now, the popliteus is not in use. However, when you move your knee to take a step, the popliteus is the muscle that unlocks the joint and flexes the knee. When the knee flexes, the popliteus helps to rotate the tibia inward. It also assists in medial rotation of the knee.
How do you unlock popliteus?
What is the muscle behind the knee called?
The gastrocnemius muscle and the soleus muscle make up your calf, which is the back of your lower leg. These muscles help you bend your knee and point your toes. Any sport that requires you to quickly go from a standing position to a run like tennis or squash can strain or tear the gastrocnemius muscle.
What does the back of the knee called?
The popliteal fossa (sometimes referred to as the back knee, hough, or kneepit in analogy to the cubital fossa) is a shallow depression located at the back of the knee joint. The bones of the popliteal fossa are the femur and the tibia.
What is the antagonist of the popliteus?
The popliteus has some function in knee flexion, but more importantly, as an internal rotator of the tibia. The antagonists to these muscles belong to the quadriceps muscle group, comprised of the rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius, all of which act to extend the knee.
How is popliteal bursa treated?
Baker’s Cyst Treatment and Home Treatment
- Keep it cold. Apply a cold pack to the affected area. It’ll help keep the swelling down. …
- Take medication. For pain (and to ease inflammation), take an over-the-counter medication like ibuprofen.
- Rest your leg. Keep it raised above your heart level when possible.
What does a lump behind the knee mean?
What causes behind knee lump? A Baker’s cyst is a common cause of a lump behind the knee. This condition develops when joint fluid leaks out from the joint cavity into the tissues behind your knee. Other causes include infections, bleeding, trauma, and, rarely, tumors.
Why do you get Baker’s cyst?
A Baker’s cyst, also called a popliteal (pop-luh-TEE-ul) cyst, is usually the result of a problem with your knee joint, such as arthritis or a cartilage tear. Both conditions can cause your knee to produce too much fluid, which can lead to a Baker’s cyst.
How do you fix a tibial plateau fracture?
The injury is usually fixed with metal plates and screws placed through a large incision. The type of fracture usually dictates what types of incisions and how many plates and screws are needed. Sometimes bone graft or types of bone cement are needed to support the joint surface.
Can I bend my knee with a tibial plateau fracture?
It is common for an active person with a tibial plateau fracture to require surgery to line up the bone and hold it with a plate and screws. In many cases after these surgeries, we allow the patient to bend the knee right away, although we often do not allow weight bearing.
How do you treat a tibial plateau fracture?
Tibial Plateau Fracture Care For fractures that have not shifted, surgery may not be needed. The most common non-surgical treatment is a short leg, non-weightbearing cast or a hinged knee brace, combined with physical therapy and rest. Fractures that have shifted require surgery.
What inserts at Gerdys tubercle?
Gerdy tubercle is the eponymous name for the lateral condyle of the proximal tibia (where it is located anterolaterally). It is where the iliotibial band and anterior tibialis muscle inserts.
How do you identify a Gerdy tubercle?
This point is the intersection of a line drawn between 2 corners of a box created using the tibial tubercle, inferior pole of the patella, and the fibula head. This serves as a reliable and reproducible method to identify Gerdy’s tubercle.
What does the Ober test test for?
Purpose. The Ober’s test evaluates a tight, contracted or inflamed Tensor Fasciae Latae (TFL) and Iliotibial band (ITB). The Ober’s test must not be confounded with Noble’s test and the Renne test, two other tests that are commonly used to detect iliotibial band syndrome.
Where is the syndesmosis?
The syndesmosis is a fibrous joint held together by ligaments. It’s located near the ankle joint, between the tibia, or shinbone, and the distal fibula, or outside leg bone.
How is fibula attached to tibia?
The base of the fibula forms the outer projection (malleolus) of the ankle and is joined to the tibia and to one of the ankle bones, the talus. The tibia and fibula are further joined throughout their length by an interosseous membrane between the bones.
What is lateral malleolus of left fibula?
The knob on the outside of the ankle, the lateral malleolus, is the end of the fibula, the smaller bone in the lower leg. When this part of the bone fractures, or breaks, it’s called a lateral malleolar fracture.