What is ulnar paradox?
What is Ulnar Paradox? This refers to the different manifestation of a high ulnar nerve lesion (at the elbow) and a low ulnar nerve lesion (at the wrist). In a high lesion the clawing is paradoxically more mild than in a low lesion.
What causes ulnar claw?
Putting pressure on the elbow or base of the palm over a long period. Breaking or dislocating your elbow. Repeated motion injury from frequent elbow bending. An injury to the arm causes swelling that presses on the ulnar nerve.
What muscles are affected in claw hand?
Muscles innervated by the ulnar nerve include:
- Abductor digiti minimi.
- Flexor digitorum profundus.
- Flexor digiti minimi.
- Opponens digiti minimi.
- Ring finger lumbricals.
- Small finger lumbricals.
- Dorsal and palmar interosseous muscles.
- Adductor pollicis.
Which nerve injury causes claw hand?
Cervical spondylosis, ulnar nerve palsy, and ulnar nerve entrapment are all conditions that can cause nerve damage leading to claw hand. Abnormal wear of the cartilage or bone in your spine can cause compression on your nerves, which can also lead to claw hand.
Why is it called ulnar paradox?
Ulnar paradox (Instead, the fourth and fifth fingers are simply paralyzed in their fully extended position.) This is called the “ulnar paradox” because one would normally expect a more proximal and thus debilitating injury to result in a more deformed appearance.
What is cubital fossa?
The cubital fossa is a small triangular area located on the anterior surface of the elbow, with the apex of the triangle pointing distally. It contains some important structures, on their passage from the arm to forearm. [[1] It is homologous to the popliteal fossa of the lower limb.
Which nerve is damaged in wrist drop?
Wrist drop is caused by damage to the radial nerve, which travels down the arm and controls the movement of the triceps muscle at the back of the upper arm, because of several conditions.
What is elbow pit called?
antecubital fossa
Technically, you can refer to the area as the antecubital fossa. Antecubital is an adjective meaning “of or relating to the inner or front surface of the forearm” (in Latin ante means “before” and cubitum means “elbow”). Fossa is a Medieval Latin borrowing that is used for an anatomical pit, groove, or depression.
What is the difference between cubital fossa and antecubital fossa?
The Cubital Fossa is a triangular-shaped depression, located between the forearm and the arm on the anterior surface of the elbow, with the apex of the triangle pointing distally. It is also known as the “antecubital” because it lies anteriorly to the elbow.
What is crutch palsy?
Crutch palsy is a particularly rare form of radial compressive neuropathy [2-5], and occurs when improper use of crutches cause prolonged and excessive compression of the radial nerve at the axilla. Diagnosis of crutch palsy can usually be done clinically by obtaining a detailed history and neurological examination.
Why is it called Saturday night palsy?
THE TERM Saturday night palsy has become synonymous with radial nerve compression in the arm resulting from direct pressure against a firm object. It typically follows deep sleep on the arm, often after alcohol intoxication. The commonly accepted origin of the phrase is the association of Saturday night with carousing.
What is claw hand?
Claw hand is a condition that causes curved or bent fingers. This makes the hand appear like the claw of an animal. Claw hand is a hand characterized by curved or bent fingers, making the hand appear claw-like.
What is a Wenis bone?
It’s the inner part of the bottom bone. The wenis is the skin surrounding the bottom of the elbow. It’s not bone at all, and it rests over the top of the joint, not within it. The only similarity is that they’re located around the middle of the arm.
What is opposite side of elbow called?
The cubital fossa, chelidon, or elbow pit, is the triangular area on the anterior side of the upper limb between the arm and forearm of a human or other hominid animals. It lies anteriorly to the elbow (Latin cubitus) when in standard anatomical position….
| Cubital fossa | |
|---|---|
| TA2 | 291 |
| FMA | 39848 |
| Anatomical terminology |
What are the 3 main antecubital fossa veins?
The most site for venipuncture is the antecubital fossa located in the anterior elbow at the fold. This area houses three veins: the cephalic, median cubital, and basilic veins (Figure 1).