KinesiologyKinesiology PED 2440

The Wrist Exercises and Injuries

Exercises Wrist curls Squeezing tennis balls Wrist curls Squeezing tennis balls

Scaphoid fractures account for about 60 percent of all wrist (carpal) fractures. They usually occur in men between ages 20 and 40 years, and are less common in children or in older adults. The break usually occurs during a fall on the outstretched wrist. It’s a common injury in sports and motor vehicle accidents. Scaphoid fractures account for about 60 percent of all wrist (carpal) fractures. They usually occur in men between ages 20 and 40 years, and are less common in children or in older adults. The break usually occurs during a fall on the outstretched wrist. It’s a common injury in sports and motor vehicle accidents. The angle at which the wrist hits the ground determines the injury. If the wrist is extended at a 90-degree angle or greater, the scaphoid bone will break; if the angle is less than 90 degrees, the lower arm bone (radius) will break. Scaphoid Fractures

Signs and symptoms Pain and tenderness on the thumb side of the wrist. Motion (gripping) may be painful. May be some swelling on back and thumb side of wrist. Pain may subside, then return as a deep, dull aching. Marked tenderness to pressure on the "anatomical snuffbox," a triangular- shaped area on the side of the hand between two tendons that lead to the thumb. Signs and symptoms Pain and tenderness on the thumb side of the wrist. Motion (gripping) may be painful. May be some swelling on back and thumb side of wrist. Pain may subside, then return as a deep, dull aching. Marked tenderness to pressure on the "anatomical snuffbox," a triangular- shaped area on the side of the hand between two tendons that lead to the thumb. Scaphoid Fractures

The scaphoid is more susceptible to injury than any of the other carpal bones because of its unique position bridging the proximal and distal rows of the carpal bones. This frequency is due to a tenuous blood supply, with only one dorsoradial artery to the proximal pole, which results in a nearly 100% incidence of avascular necrosis in proximal fractures and a 30% incidence in distal fractures. Any tenderness in the anatomic snuffbox over the dorsal scaphoid (figure 1b) should prompt treatment as for a fracture. The scaphoid is more susceptible to injury than any of the other carpal bones because of its unique position bridging the proximal and distal rows of the carpal bones. This frequency is due to a tenuous blood supply, with only one dorsoradial artery to the proximal pole, which results in a nearly 100% incidence of avascular necrosis in proximal fractures and a 30% incidence in distal fractures. Any tenderness in the anatomic snuffbox over the dorsal scaphoid (figure 1b) should prompt treatment as for a fracture. Scaphoid Fractures

Osteoarthritis (OA) is a progressive condition that destroys the smooth articular cartilage covering the ends of bones. The bare bones rub against each other, resulting in pain, stiffness and weakness. OA can develop due to normal "wear-and-tear" on the wrist or as a result of a traumatic injury to the forearm, wrist or ligaments. Rheumatoid arthritis (RA) is a systemic inflammatory disease that affects the joint linings and destroys bones, tissues, and joints. Rheumatoid arthritis often starts in smaller joints, like those found in the hand and wrist, and is symmetrical, meaning that it usually affects the same joint on both sides of the body. Osteoarthritis (OA) is a progressive condition that destroys the smooth articular cartilage covering the ends of bones. The bare bones rub against each other, resulting in pain, stiffness and weakness. OA can develop due to normal "wear-and-tear" on the wrist or as a result of a traumatic injury to the forearm, wrist or ligaments. Rheumatoid arthritis (RA) is a systemic inflammatory disease that affects the joint linings and destroys bones, tissues, and joints. Rheumatoid arthritis often starts in smaller joints, like those found in the hand and wrist, and is symmetrical, meaning that it usually affects the same joint on both sides of the body. Arthritis of the Wrist

Signs and symptoms OA of the wrist joint manifests with swelling, pain, limited motion and weakness. These symptoms are usually limited to the wrist joint itself. RA of the wrist joint usually manifests will swelling, tenderness, limited motion and decreased grip strength. In addition, hand function may be impaired and there may be pain in the knuckle joints (metacarpophalangeal or MP joints). Joint swelling may also put pressure on the nerves that travel through the wrist. This can cause a lesion to develop (compression neuropathy) or lead to carpal tunnel syndrome. Signs and symptoms OA of the wrist joint manifests with swelling, pain, limited motion and weakness. These symptoms are usually limited to the wrist joint itself. RA of the wrist joint usually manifests will swelling, tenderness, limited motion and decreased grip strength. In addition, hand function may be impaired and there may be pain in the knuckle joints (metacarpophalangeal or MP joints). Joint swelling may also put pressure on the nerves that travel through the wrist. This can cause a lesion to develop (compression neuropathy) or lead to carpal tunnel syndrome. Arthritis of the Wrist

Carpal Tunnel Syndrome

Osseofibirous canal -osseo = bones -fibro = ligament One nerve Nine tendons Osseofibirous canal -osseo = bones -fibro = ligament One nerve Nine tendons Carpal Tunnel Syndrome

1. Carpal Bones 2. Transverse Carpal Ligament 3. Median Nerve 4. Nine Flexor Tendons - 4 flexor digitorum superficialis - 4 flexor digitorum profundus - 1 flexor pollicis

1. Scaphoid 2. Lunate 3. Triquetrum 4. Pisiform 5. Trapezium 6. Trapezoid 7. Capitate 8. Hamate 1. Scaphoid 2. Lunate 3. Triquetrum 4. Pisiform 5. Trapezium 6. Trapezoid 7. Capitate 8. Hamate Carpal Tunnel Syndrome

“Medial wall” – Pisiform and Hamate “Lateral wall” – Scaphoid and Trapezium “Floor” – Lunate, Triquetrum, Trapeziod and Capitate “Medial wall” – Pisiform and Hamate “Lateral wall” – Scaphoid and Trapezium “Floor” – Lunate, Triquetrum, Trapeziod and Capitate Carpal Tunnel Syndrome

Trapezium Hamate Transverse Carpal Ligament Carpal Tunnel Syndrome

Symptoms Pain and numbness in 1- 3 fingers and half of the 4 th or ring finger Symptoms do not include palm or little finger Symptoms Pain and numbness in 1- 3 fingers and half of the 4 th or ring finger Symptoms do not include palm or little finger Carpal Tunnel Syndrome

Pathology “a compressive neuropathy of the median nerve with the carpal tunnel” Causes Genetics Lifestyle (diabetes, gout, arthritis, pregnancy, and alcoholism are risk factors) Repetitive motion. Keyboard, rock climbing, tennis, Trauma Pressure inside the tunnel can double with CTS Pathology “a compressive neuropathy of the median nerve with the carpal tunnel” Causes Genetics Lifestyle (diabetes, gout, arthritis, pregnancy, and alcoholism are risk factors) Repetitive motion. Keyboard, rock climbing, tennis, Trauma Pressure inside the tunnel can double with CTS Carpal Tunnel Syndrome

Overuse of flexor muscles Pressure on median nerve Carpal Tunnel Syndrome

Modification in activities Table height, wrist angle, elbow angle minute breaks Exercises and warm-up wrist flexor muscles Flex fingers tightly then extend and abduct fingers for 5 seconds With arms extended, flex and extend wrist several times followed by circumduction of the wrist Removable wrist brace Anti-inflammatory medicines NSAID Cortisone Surgery – carpal tunnel release Modification in activities Table height, wrist angle, elbow angle minute breaks Exercises and warm-up wrist flexor muscles Flex fingers tightly then extend and abduct fingers for 5 seconds With arms extended, flex and extend wrist several times followed by circumduction of the wrist Removable wrist brace Anti-inflammatory medicines NSAID Cortisone Surgery – carpal tunnel release Carpal Tunnel Syndrome

Scare tissue

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