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Muscle contractures are a result of stiffness in the connective tissues of the body, causing muscle, ligament, and joint stiffness. This can lead to permanent contraction of the muscle and tendon due to severe persistent stiffness and spasms. Spasticity, on the other hand, is a condition where muscles stiffen or tighten, disrupting normal fluid movement. It can be caused by damage to the brain or spinal cord, affecting muscle stretch reflexes. Spasticity can range from mild stiffness to painful and uncontrollable spasms. Treatments for both conditions include physical therapy, medication, and in severe cases, surgery.
| Characteristics | Values |
|---|---|
| Definition | Muscle contractures are the shortening and tightening of muscles, leading to stiffness and spasms. |
| Causes | Inactivity, scarring from an injury or burn, severe osteoarthritis, rheumatoid arthritis, damage or disruption to the brain and spinal cord, cerebral palsy, multiple sclerosis, or imbalance in electrical signals to muscles. |
| Symptoms | Muscle stiffness, reduced range of motion, joint pain, difficulty performing daily activities, sleep disruption, uncontrollable muscle contractions, muscle rigidity, and spasticity. |
| Treatment | Physical therapy, occupational therapy, casting or bracing, oral medications, selective dorsal rhizotomy (SDR), botulinum toxin injections, nerve blocks, electrical stimulation, and in severe cases, contracture surgery. |
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What You'll Learn
Muscle contractures are caused by inactivity, injury, or scarring
Muscle contractures are a painful condition that restricts movement. They are caused by a variety of factors, including inactivity, injury, or scarring.
Inactivity is a common cause of muscle contractures. Prolonged bed rest, a lack of physical activity, or the inability to move certain muscle groups can lead to the development of contractures. This is often seen in people who are immobilized due to severe osteoarthritis, rheumatoid arthritis, or paralysis following a stroke. In such cases, the muscles and joints are not moved through their normal range of motion, leading to tightening and stiffness.
Injury is another significant cause of muscle contractures. This includes traumatic brain injuries, spinal cord injuries, and burns. When the body undergoes trauma, scar tissue can form, joining muscle fibers and joints together. This scar tissue reduces flexibility, restricts movement, and can lead to permanent contraction of the muscles and tendons. Large burns, in particular, can cause contractures of the skin, muscles, and joints.
Scarring from any type of injury can also lead to muscle contractures. This includes scarring from injuries to the brain or spinal cord, which can disrupt the complex system that normally controls muscle movement. As a result, multiple muscles may contract simultaneously, making voluntary movement difficult.
Muscle contractures caused by inactivity, injury, or scarring can result in muscle stiffness, tightness, and pain. They can interfere with daily activities, such as dressing, bathing, and performing basic hygiene tasks. Therefore, it is important to seek medical treatment promptly to prevent irreversible symptoms and improve quality of life.
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Muscle contractures can be treated with physical therapy
Muscle contractures are caused by structural changes in non-bony tissue, including muscles, ligaments, fascia, and tendons. This results in the shortening and hardening of these tissues, ultimately causing rigidity, joint deformities, and a total loss of movement around the joint. Contractures can be extremely painful and can interfere with daily functions.
- Activation or strengthening of the weak opponent
- Local inhibition of the contracted muscle
- General inhibition of hypertonus
- Passive lengthening
Physical therapy is often combined with other treatments, such as oral medication, casting or bracing, and nerve blocks. In more severe cases, surgery may be required, such as selective dorsal rhizotomy (SDR) or orthopaedic surgery. After surgery, patients typically undergo rehabilitation to maintain functionality and prevent further scarring.
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Spasticity is a condition where muscles stiffen or tighten
Spasticity is characterised by involuntary contractions of certain muscles all at once, known as co-contraction, which hinders voluntary movement. It is distinct from rigidity, which affects all muscles surrounding a joint equally. The severity of spasticity varies, and it can be caused by an imbalance in electrical signals sent to the muscles. This imbalance can be addressed through Selective Dorsal Rhizotomy (SDR), which involves cutting specific nerve roots to decrease muscle stiffness and restore balance.
There are several treatment options for spasticity, including physical therapy, medication, and botulinum toxin injections. Physical therapy focuses on stretching and strengthening exercises for large muscle groups to improve mobility and range of motion. Oral medications are typically used in conjunction with other therapies and only when symptoms interfere with daily life or sleep. In extreme cases, ITB pump therapy may be considered, which involves surgically placing a pump in the abdomen to deliver medication directly to the spinal fluid.
Orthopaedic surgery is another option for treating the consequences of spasticity on muscles, bones, and connective tissue, such as contractures and deformities. Tendon lengthening and tendon transfer procedures are examples of this type of surgery. Additionally, casting or bracing can be used to prevent involuntary spasms and reduce muscle tightening. For patients whose spasticity has affected their speech, speech therapy is also an option.
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Spasticity can be caused by damage to the brain or spinal cord
Muscle contractures are indeed painful spasms. Contractures lead to muscle, ligament, and joint stiffness, and they can be treated with physical therapy, casts and splints, medicine, nerve blocks, or electrical stimulation. In some cases, surgery may be required to lengthen muscles or repair ligaments, tendons, or bones.
Spasticity is a condition that causes muscles to stiffen or tighten, preventing normal fluid movement. It is characterised by a velocity-dependent increase in tonic stretch reflexes (muscle tone) with exaggerated tendon jerks. It is generally caused by damage or disruption to the brain or spinal cord, specifically the area responsible for controlling muscle and stretch reflexes. This can be due to an injury or an imbalance in the inhibitory and excitatory signals sent to the muscles, causing them to lock in place.
Spasticity can develop after a brain or spinal cord injury, affecting the motor nerves and resulting in involuntary muscle tightening. It is a symptom of upper motor neuron syndrome, which originates in the brain and brain stem and projects to lower motor neurons within the brain stem and spinal cord. The injury disrupts the complex nerve circuits that control reflex motor activity, causing the muscles to become overactive.
Spasticity can affect any muscle below the level of the spinal cord injury lesion, including the arms, legs, bowel, bladder, trunk, neck, and abdomen. It can cause resistance to stretch, making it difficult to move the muscle into a stretched position, and can lead to exaggerated reflexes and clonus (rapidly repeating muscle contractions).
There are several treatment options for spasticity, including physical therapy, occupational therapy, speech therapy, casting or bracing, and oral medications. In more severe cases, ITB pump therapy or selective dorsal rhizotomy (SDR) may be considered.
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Spasticity can be treated with oral medications or surgery
Spasticity is a condition that causes muscles to stiffen or tighten, preventing normal fluid movement. It is characterised by continual muscle contractions that disrupt movement patterns, affecting speech and mobility. Spasticity can range from mild stiffness to painful and uncontrollable spasms, and in severe cases, can cause extreme pain and significantly disrupt daily life.
Oral medications are a common treatment option for spasticity. These are typically used in conjunction with other therapies or medications, such as physical or occupational therapy, and are generally reserved for cases where symptoms interfere with daily functioning or sleep. Oral medications can help alleviate symptoms and improve a patient's quality of life.
In addition to oral medications, there are several non-pharmacological treatments for spasticity that do not involve surgery. These include:
- Physical therapy: stretching and strengthening exercises to improve range of motion and mobility.
- Occupational therapy: exercises focusing on small muscle groups to improve strength and coordination for daily tasks.
- Speech therapy: for patients whose speech has been affected by spasticity.
- Casting or bracing: to prevent involuntary spasms and reduce muscle tightening.
- Nerve blocks: to numb affected joints and reduce pain.
- Electrical stimulation: to relax stiff and tight muscles.
In more severe cases of spasticity, surgery may be recommended. Surgical treatments include:
- Intrathecal baclofen (ITB) therapy: involving the implantation of a pump in the abdomen that releases a steady dose of the medication baclofen directly into the spinal fluid. This treatment option has been found to be effective in reducing spasticity and pain in the lower and upper extremities, with fewer side effects than oral baclofen.
- Selective dorsal rhizotomy (SDR): a procedure for patients with severe spasticity in the legs, typically those with cerebral palsy. SDR rebalances electrical signals to the spinal cord by cutting carefully selected nerve roots, reducing muscle stiffness while maintaining other functions.
- Orthopaedic surgery: to treat the consequences of spasticity on muscles, bones, and connective tissue.
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Frequently asked questions
A muscle contracture is the shortening and tightening of muscles, often due to inactivity, scarring from an injury or burn, or other conditions that limit movement. It can also be caused by damage to the nerves in the central nervous system, disrupting the normal pattern of muscle movement and causing many muscles to contract at once. This results in stiffness in the connective tissues of the body and can lead to permanent contraction of the muscle and tendon.
Treatments for muscle contractures include physical therapy, occupational therapy, casts or splints, medication, nerve blocks, and surgery. Physical and occupational therapy focus on stretching and strengthening exercises to improve range of motion and coordination. Medications can be prescribed to reduce inflammation and pain associated with contractures. In some cases, surgery may be necessary to lengthen muscles or repair damaged ligaments, tendons, or bones.
Muscle contractures can be painful, depending on the location and cause of the problem. While pain is not always present, it can occur as a result of the muscle spasms and tightness associated with contractures. The pain can range from mild to severe and can interfere with daily activities, sleep, and hygiene tasks.
