Library: Tendons

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Tenosynovitis

Tendons attach muscle to bone and are the focus for the “pull” of the muscle. They are encased in sheaths that are naturally lubricated so that they slide easily when you use your muscles. In Tenosynovitis there is a malfunction of the lubricating system between the tendons and their sheath in the affected joints, causing them to “grate” and they then become irritated and inflamed. The sheath then becomes thickened and the tendons can no longer glide smoothly. This will sometimes cause the finger to click as you bend or straighten it. This is an over-use injury caused by repetitively using the fingers when they are under too much stress. It may also be caused by infection. It is a common condition among typists.

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Tags: Shoulder, Hands, Legs, Feet, Ligaments, Tendons, Sports Injuries, Tenosynovitis

Cramp in Muscles - Hamstring Muscle Cramp

Cramp is your muscles way of telling you to ease up. Either you are using them for longer than they are used to or you are using them harder than they are used to. During cramp your muscles contract involuntarily for a sustained period of time. There are many factors that can make cramp happen so it is difficult to say exactly what causes it. Suddenly undertaking exercise for much longer than you are used to can cause it as can exercising at a higher level.

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Tags: Lower Body, Legs, Feet, Tendons, Muscles, Muscle Cramps

Trigger Finger

Tendons attach muscle to bone and are the focus for the “pull” of the muscle. Some are encased in sheaths that are naturally lubricated so that they slide easily when you use your muscles. In Trigger finger there is a malfunction of the lubricating system between the tendons and their sheath in the affected finger or thumb, causing them to “grate” and they then become irritated and inflamed. The sheath then becomes thickened and the tendons can no longer glide smoothly. This will sometimes cause the finger to click as you bend or straighten it. This is an over-use injury caused by repetitively using the thumb when it is under too much stress.

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Tags: Hands, Fingers, Tendons, Muscles, Trigger Finger

Dupuytren’s Contracture

Connective Tissue is the name given to the substance that holds you together and gives your body its unique shape. It encloses your muscles, tendons, ligaments, bones and other organs. This fibrous tissue forms a web under your skin protecting and supporting your hand. In order for your hand to work at its best, all these structures need to be in perfect condition. In Dupuytren’s Contracture the fibrous tissue starts to thicken, and the skin and tendons begin to stick to each other so you can no longer open and close your fingers properly. Then it begins to contract, shortening the tendons and preventing your fingers from opening fully. Gradually you lose all movement in the fourth and fifth fingers and they become permanently closed. You will also notice a lump in your palm near the affected fingers that slowly develops into a cord-like band.

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Tags: Hands, Fingers, Wrists, Ligaments, Tendons, Muscles

Mallet Finger

This injury happens when a hard blow to your finger tears the tendon away from the bone. Sometimes a small fragment of the bone will break off too. This means that you will not be able to straighten the finger joint nearest your nail without using your other hand. The joint will straighten if you use your other hand but not on its own. Unless the injury is treated properly, it will remain permanently bent and could be prone to arthritis in later life.

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Tags: Arms, Hands, Fingers, Ligaments, Tendons, Muscles, Mallet finger

Groin Strain

Tendon attaches muscle to bone and is the focus for the “pull” of the muscle. What happens in Groin Strain is that the muscle pulls part of the tendon away from the bone or away from the belly of the muscle and the attachment point (or focus) becomes frayed and sore. There is extra pressure on these point when you over-stretch your leg outwards, or it can be pressured by kicking a ball and those repeated jarring effects can cause damage. While the tendons themselves are enormously strong (half the tensile strength of steel), the attachment is usually weaker and first to give.

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Tags: Groin, Legs, Ligaments, Tendons, Muscles, Groin Strain, Sports Injuries, Sprain, Tendinitis

Torn Ligaments

The 3 bones of the knee are held together by 4 main ligaments, 2 at the front, deep in the knee, which run from top to bottom, diagonally and cross each other. Since they cross, they are referred to as cruciate ligaments. The other 2 ligaments are located, one at either side. The knee is normally a very strong and stable joint, because of the strength of these ligaments. Tearing or severing any one of these ligaments, aside from being extremely painful, is very damaging to the stability of the joint and consequently a career threatening injury. Torn ligaments will not heal themselves, they need to be surgically repaired. Usually ligaments torn in the centre will be sewn together, and ligaments torn from the bone will be stapled back on to it.

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Tags: Lower Body, Knees, Shin, Ligaments, torn, Tendons, Ligament Tear, Sports Injuries

Swollen Knee - Osgood Schlatter Disease

The muscles of the thigh are the strongest in your body. They are attached to your leg by a tendon just below the kneecap. When you are sitting and want to straighten your leg their strength is focused on a small area just under the kneecap on the “bump” of the knee. In younger people, particularly boys aged 12 who are active in sport, this part of the knee is not yet fully developed and damages easily due to the stronger than normal pull of over developed muscles. Osgood Schlatter Disease is the name given to an overuse injury where the knee gets sore and swollen at this point.

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Tags: Knees, Tendons, Muscles, Sports Injuries, Swollen Knee - Osgood Schlatter Disease

Referred Pain

Referred pain is pain that is felt at a distance from its source. Referred pain in the knee may be coming from your back or your hip. If, for example, you have a prolapsed disc which is pressing on the sciatic nerve the pain can be transmitted along the nerve and be felt anywhere along its path. The further the point of pain from the source the greater the level of damage to the nerve. Back pain that makes your foot sore is usually more serious than if the all the discomfort was in the back. The pain may also be referred to your knee from “trigger points” in your muscles.

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Tags: Whole Body, Arms and Legs, Lower Body, Ligaments, Spine, Tendons, Muscles, Back pain, Joint strains, Muscle Tears, Muscle sprain or strain, Referred Pain, Sports Injuries

Rupture of the Tendon

Tendon attaches muscle to bone and is the focus for the “pull” of the muscle. When you damage it (see Tendinitis) the muscle pulls part of the tendon away from the bone and the attachment point (or focus) becomes frayed and sore. In the case of a rupture the tendon becomes completely detached from the bone and you can no longer move the joint. While the tendons themselves are enormously strong (half the tensile strength of steel), the attachment to the bone is usually weaker and first to give. Tendinitis is most common at the sites of the strongest muscles (quads, arm muscles, calves).

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Tags: Arms and Legs, Tendons, rupture -, Muscles, Joint strains, Muscle sprain or strain, Rupture of Tendons, Tendinitis

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