Muscular branches of femoral nerve L2, L3, L4. Arterial Supply. Lateral circumflex femoral artery. Vastus lateralis is supplied by the muscular branches of the femoral nerve Primary nerves of the anterior thigh obturator nerve femoral nerve origin L of lumbar plexus motor extensors of the knee recuts femoris vastus lateralis vastus medialis vastus intermedius sensory none course descends in the abdomen through the psoas runs behind inguinal ligament and into the thigh where it splits into an anterior and posterior division passes through femoral triangle lateral to femoral vessels terminal cutaneous branch is the saphenous nerve.
Vastus lateralis is primarily supplied by lateral circumflex artery, a branch of femoral artery Femoral artery branches in thigh profunda femoris medial femoral circumflex lateral femoral circumflex lateral to rectus femoris branches ascending branch - runs towards ASIS between sartorius and TFL requires ligation during anterior approach to hip transverse branch - joins branch of medial femoral circumflex descending branch - runs between vastus intermedius and lateralis muscles encountered in anterolateral approach to femur.
Vastus lateralis lies in the anterior compartment of the thigh anterior compartment consists of rectus femoris femoral n. Hip A nterolateral Approach Watson-Jones. Hip Posterior Approach Moore or Southern. The vastus lateralis muscle is located on the side of the thigh. This muscle is the largest of the quadriceps group often called quads which also includes the rectus femoris, the vastus intermedius, and the vastus medialis. Collectively, the quadriceps muscle is the largest in the human body and its purpose is to extend the knee.
The specific task of the vastus lateralis muscle is to extend the lower leg and allow the body to rise up from a squatting position. On the upper end, the muscle attaches to the femur; on the lower end it attaches to the patella, or kneecap. Taken together, the muscles of the legs allow strength and stability.
They provide power for and absorb the impact of daily activities such as walking, running, and jumping. Common injuries to the vastus lateralis muscle include strains and contusions. A strain is actually a tear in the muscle and can result from an improper warm up before physical activity. A contusion is when the muscle is crushed against the bone, and is usually the result of an impact such as a bruising injury.
The supraspinatus muscle is a rotator cuff muscle located in the shoulder, specifically in the supraspinatus fossa, a concave depression in the rear…. The quadratus plantae is a muscle in the foot that extends from the anterior front of the calcaneus heel bone to the tendons of the digitorum….
The vastus lateralis directly opposes the vastus medialis muscle on the inner portion of your thigh. These two muscles work together to maintain the appropriate position of your patella kneecap in the femoral groove of your thigh bone. Failure of these muscles to function properly may lead to knee pain from patellofemoral stress syndrome PFSS.
There are many different injuries and conditions that may affect your vastus lateralis. These may inlcude:. If you are having pain or difficulty with walking due to quadriceps weakness, you should visit your healthcare provider to get an accurate diagnosis of your problem. Your healthcare provider can diagnose your condition and help guide you in your recovery. Injury to your vastus lateralis or quad muscles may cause pain, swelling of your thigh, or limited walking ability.
There are various treatments available that may help you recover after a vastus lateralis injury. Working with a physical therapist may be helpful when rehabbing vastus lateralis injuries. In the first few days after injury, ice may be applied to your lateral thigh to control pain and decrease swelling and inflammation.
Ice should be applied for 10 to 15 minutes, with care taken to avoid frost burns. Two to three days after injury, you may switch to heat to promote circulation and improve tissue mobility. Heat should be applied for 10 to 15 minutes. Again, care should be taken to avoid burns. Massage may be used after a quad or vastus lateralis injury to help decrease pain and promote circulation.
Massage techniques can improve tissue mobility prior to stretching to help improve quadriceps motion. After a vastus lateralis injury, quad stretching may be done to improve mobility and function of the muscle group. If femoral nerve irritation coming from your low back is causing your thigh pain or weakness, exercises to release the nerve may be helpful.
They may include:. The exercises are designed to get pressure off your lumbar nerve, and postural correction exercises may be done to maintain decompression of the nerve.
Weakness to your vastus laterals and quads may be causing your injury, and strengthening exercise may be prescribed during your rehab. Exercises may include:. Strengthening exercises should be done two to four times a week with appropriate rest in between sessions. Be sure to stop any exercise if it causes pain in your vastus lateralis or quad muscle. Getting back to normal function after a vastus lateralis injury should be your main goal, and your physical therapist may have you engage in functional training to accomplish that goal.
Balance exercises and sport-specific plyometric training may be done to ensure that your quad is functioning normally. Most injuries to the quadriceps and vastus lateralis muscles heal within six to eight weeks.
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