What is a swan neck deformity?

Swan neck deformity is a deformed position of the finger, in which the joint closest to the fingertip is permanently bent toward the palm while the nearest joint to the palm is bent away from it (DIP flexion with PIP hyperextension).

The usual cause of a Swan Neck deformity is weakness or tearing of a ligament on the palm side of the middle joint of the finger. Sometimes it is caused by tearing of the tendon that flexes the middle joint. In other cases, injury of the tendon that straightens the end joint is the cause.

Additionally, what is boutonniere deformity? Boutonniere deformity is a deformed position of the fingers or toes, in which the joint nearest the knuckle (the proximal interphalangeal joint, or PIP) is permanently bent toward the palm while the farthest joint (the distal interphalangeal joint, or DIP) is bent back away (PIP flexion with DIP hyperextension).

In this regard, how do you treat swan neck deformity?

  1. Physical therapy and occupational therapy. If SND is mild, your doctor may recommend PT or OT as your first line of treatment.
  2. Splinting. Your doctor may advise a splint to try to correct and stabilize the SND.
  3. Soft tissue repair.
  4. PIP joint arthroplasty.
  5. Finger joint fusion.

How do you treat a boutonniere deformity?

The most common treatment for boutonniere deformity involves stabilizing your finger with a splint that rests on the middle joint. The splint creates pressure to straighten and immobilize the finger.

Can osteoarthritis cause swan neck deformity?

While there are several potential causes of swan neck deformity, the most common cause is rheumatoid arthritis. Other possible causes may include one or more of the following: other types of arthritis. untreated mallet finger – a condition often caused by injury.

Why is it called a boutonniere deformity?

Boutonnière deformity is generally caused by a forceful blow to the top (dorsal) side of a bent (flexed) middle joint of a finger. It also can be caused by a cut on the top of the finger, which can sever the central slip (tendon) from its attachment to the bone.

What is Z deformity of thumb?

A ‘Z deformity’ may occur in rheumatoid arthritis. It is seen at the thumb and consists of hyperextension of the interphalangeal joint, and fixed flexion and subluxation of the metacarpophalangeal joint.

What is the difference between Bouchard’s and Heberden’s nodes?

Bony bumps on the finger joint closest to the fingernail are called Heberden’s nodes. Bony bumps on the middle joint of the finger are known as Bouchard’s nodes. Bony bumps are also common at the base of the thumb. These bumps do not have a nickname, but the joint is called the CMC or carpometacarpal joint.

What is Z deformity?

A ‘Z deformity’ may occur in rheumatoid arthritis. It is seen at the thumb and consists of hyperextension of the interphalangeal joint, and fixed flexion and subluxation of the metacarpophalangeal joint.

Can splints straighten fingers?

Wearing one or two Oval-8 splints on your middle joint holds it straight and still allows the finger tip to bend. An Oval-8 worn on the side of the finger joint can help straighten them and may prevent further deformity.

What is a PIP joint?

Proximal Interphalangeal (PIP) Joints Definition. The proximal interphalangeal (PIP) joints are the middle knuckles of the fingers (the thumb does not have a PIP joint).

What causes joint deformity?

Diseases and injuries that cause joint deformity include osteoarthritis, rheumatoid arthritis, systemic lupus erythematosus, cancer of bone or cartilage, osteomyelitis, trauma from sports or motor vehicle accidents, and fractures.

Where is the PIP joint?

The one closest to the MCP joint (knuckle) is called the proximal IP joint (PIP joint). The joint near the end of the finger is called the distal IP joint (DIP joint). Ligaments are tough bands of tissue that connect bones together.

What is an oval 8 splint?

Oval-8 Finger Splints are the ideal choice whenever you need to stabilize or immobilize the small joints of your patient’s fingers. The versatile 3-point pressure design allows each Oval-8 Finger Splint to treat 6 or more conditions with a simple turn of the splint.

What kind of arthritis causes deformity?

Rheumatoid arthritis (RA) used to cause major damage to hands and feet. Joints became deformed.

Can osteoarthritis cause finger deformity?

A very common early sign of osteoarthritis is a knobby bony deformity at the smallest joint of the end of the fingers. This is referred to as a Heberden’s node, named after a very famous British doctor. The bony deformity is a result of the bone spurs from the osteoarthritis in that joint.