What causes Linburg-Comstock syndrome?

A muscular or tendinous interconnection between the FPL and FDP has been shown in cadaver dissections, case reports, and on magnetic resonance imaging. One of the acquired factors which has been held responsible for the emergence of Linburg-Comstock anomaly is continuous or repetitive finger activity.

How common is Linburg-Comstock syndrome?

The Linburg–Comstock anomaly is relatively common; previous studies have described prevalences ranging from 13–31% of the adult population having a tendon connecting FPL to FDP, being present unilaterally in 9–25%, and bilaterally in 4–6%.

Why does my pointer finger move when I bend my thumb?

It’s called ulnar deviation because your fingers bend in the direction of the ulna bone in your forearm. This bone is on the outermost edge of your arm on each side. This condition won’t necessarily keep you from using your hands for daily tasks, such as gripping objects or tying your shoes.

Is the thumb and index finger connected?

You see, the fingers are connected to the brain through two nerves. The radial nerve connects with the thumb, index finger and one side of the middle finger, while the ulnar nerve connects with the little, ring and the other side of middle finger.

What is flexor tenosynovitis?

Pyogenic flexor tenosynovitis (PFT) is a common closed-space infection of the flexor tendon sheaths of the hand, which remains one of the most challenging problems facing hand surgeons. PFT goes by several names including septic or suppurative flexor tenosynovitis.

Why can’t I bend my thumb without bending my index finger?

The Linburg-Comstock (LC) syndrome is distinguished by the inability to actively flex the interphalangeal (IP) joint of the thumb without simultaneously flexing the distal IP joint of the index finger.

What is Linburg Comstock variation?

Linburg–Comstock variation is an occasional tendinous connection between the flexor pollicis longus and the flexor digitorum profundus of the index, the middle finger or both. It is found in around 21% of the population. It is an anatomical variation in human, which may be viewed as a pathology if causes symptoms.

Can people move index finger without moving their thumb?

Signs and symptoms This abnormality is clinically evident when the patient is unable to flex the thumb without flexing the distal interphalangeal joint of the index or middle finger or vice versa. Flexor tenosynovitis is a common finding in the patients with Linburg–Comstock syndrome.

What is Sindactilia?

Syndactyly (sin-DAK-tuh-lee) is when a baby is born with two or more fingers or toes joined or “webbed” together.

What is the most useless finger on your hand?

Of all your fingers, you might think your pinky is the most useless. But your little finger is particularly important in a strong grip and hand surgeons agree if you’re going to lose one, the index finger is the best one to lose.

What are kanavel signs?

The Kanavel cardinal signs of flexor sheath infection are a finger held in slight flexion, fusiform swelling of the affected digit, tenderness along the flexor tendon sheath, and pain with passive extension of the digit. A suspicion of flexor sheath infection warrants urgent referral to a hand unit.