How is a capitate fracture treated?
Nondisplaced isolated capitate fractures should be treated with short-arm thumb spica cast immobilization for 6 to 8 weeks. Displaced fractures require anatomic reduction to restore normal carpal kinematics.
What type of joint is capitate?
Synovial gliding joints
Midcarpal joint
| Articulations | Articulation between the proximal and distal row of carpal bones Mnemonic: ‘Sally Left The Party To Take Cathy Home’ (Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium Trapezoid, Capitate, Hamate) |
|---|---|
| Joint capsule | Synovial gliding joints |
What is a lunate fracture?
Lunate fractures are uncommon carpal fracture which accounts for 0.5–6.5% of all carpal fractures [2]. Lunate fractures are usually accompanied with other carpal fractures, perilunate dislocations, or ligament disruptions since it is usually caused by high-energy traumas. Sometimes lunate fractures can be overlooked.
What kind of bone is the capitate bone?
carpal bone
The capitate is a carpal bone located in the most central portion of the wrist. The bones of the wrist are called carpals and the bones of the hand are called metacarpals. The capitate is the largest of the carpal bones.
What is a capitate fracture?
What is a Capitate Fracture? A broken wrist commonly occurs following a fall on an outstretched hand. A capitate fracture accounts for around 2% of all wrist fractures. The capitate is one of the eight small carpal bones that make up the wrist complex.
How long does it take for capitate to heal?
Nondisplaced triquetral body fractures and dorsal chip fractures require an average of 4 to 6 weeks to heal when immobilized appropriately. Displaced fractures of the triquetrum and avulsion fractures typically require surgical intervention and a longer time for healing.
Is capitate long bone?
The capitate bone is the largest of the carpal bones in the human hand. It presents, above, a rounded portion or head, which is received into the concavity formed by the scaphoid and lunate bones; a constricted portion or neck; and below this, the body….
| Capitate bone | |
|---|---|
| TA2 | 1258 |
| FMA | 23727 |
| Anatomical terms of bone |
What does a lunate fracture feel like?
Lunate fractures will present with weakness in the wrist and pain reproduced by palpating the third metacarpal bone. Hammate fractures will present with immediate pain over the area of the thumb at the moment of injury. The pain worsens with any type of gripping activity.
How is a lunate fracture treated?
The treatment of an acute, nondisplaced lunate fracture includes immobilization via a cast or an orthosis for 4 to 6 weeks. Lunate fractures that are displaced greater than 1 mm require fragment stabilization with open reduction and internal fixation (ORIF).
Why is Capitate Bone important?
Function. The carpal bones function as a unit to provide a bony superstructure for the hand. They allow movements of the wrist from side to side (medial to lateral) as well as up and down (anterior to posterior).
What is the definition of capitate?
Definition of capitate 1 : forming a head. 2 : abruptly enlarged and globose.
Which bone is distal to capitate?
The capitate bone is found in the center of the carpal bone region, colloquially known as the wrist, which is at the distal end of the radius and ulna bones. It articulates with the third metacarpal bone (the middle finger) and forms the third carpometacarpal joint….
| Capitate bone | |
|---|---|
| FMA | 23727 |
| Anatomical terms of bone |
What is the pathophysiology of capitate fractures?
Capitate fractures are most commonly due to high-energy, hyperextension forces 2. Capitate fractures will rarely occur in isolation, they can be subtle due to boney overlap, and are most commonly transverse body fractures. These can be subtle on projectional radiography and best appreciated on cross-sectional imaging
Do non displaced Capitate fractures need to be immobilized?
Non-displaced capitate fractures need to be immobilized only. Displacement is an indication for fixation, as is concomitant surgery on the scaphoid; that is, if the scaphoid is fractured it will be fixed, and at that setting the capitate fracture may be fixed as well.
What are the treatment options for capitellar fractures?
Since capitellar fractures are intra-articular, open surgical reduction and internal fixation, or excision of the displaced fragment is often warranted. For some non-displaced fractures, conservative management with splint immobilization is considered appropriate 1.
Where does the capitate articulate with the trapezoid?
The capitate articulates distally with the bases of the third and fourth metacarpals and proximally with the scaphoid and lunate. The trapezoid and the hamate are lateral (radial) and medial, respectively.