How do you treat a coronoid process fracture?
Large coronoid fractures can be rigidly fixed and small or comminuted fractures can be fixed with suturing the bone and anterior capsule to the anterior ulna using pull out sutures or suture anchors. The rare small fragments with no soft tissue attachments can be excised.
What is coronoid process fracture?
Coronoid Fractures are traumatic elbow fractures that are generally pathognomonic for an episode of elbow instability.
What is the classification system for Coronoid fractures?
Coronoid process fractures have been classified into three types within the Regan and Morrey classification system 1: type 1: avulsion of the tip of the coronoid process. type 2: fragment involving <50% of the coronoid process. type 3: fragment involving >50% of the coronoid process.
What is the importance of the coronoid process?
Function. The coronoid process stabilises the elbow joint and prevents hyperflexion.
What is a coracoid fracture?
Coracoid fractures are rare fractures [1]. In the shoulder girdle, coracoid process fractures generally accompany dislocation of the acromioclavicular (AC) joint or glenohumeral joint, scapula corpus fracture, clavicular fracture, humerus proximal end fracture or rotator cuff tear [2].
What is the function of the coronoid process of the mandible?
The Coronoid process is the anterior bony projected part of ramus of mandible giving attachment to two important muscles of mastication. The aim of our study was to observe the variation in the size of coronoid process in relation to its side (laterality), shape, age and sex.
What bone is the coronoid process on?
ulna
The coronoid process is found on the ulna and interfaces with the coronoid fossa of the humerus in the elbow.
What does Coronoid mean in anatomy?
The coronoid process is a triangular eminence projecting forward from the upper and front part of the ulna. Its base is continuous with the body of the bone, and of considerable strength. Its apex is pointed, slightly curved upward, and in flexion of the forearm is received into the coronoid fossa of the humerus.
How many Coronoid processes are there?
The coronoid process and condyloid process are located at the superior aspect of the ramus. The coronoid process is anterior and the condyloid process is posterior; the two are separated by the mandibular notch. The ramus is bound by two surfaces and four borders and contains two processes.
What is a coronoid process?
Medical Definition of coronoid process 1 : the anterior process of the superior border of the ramus of the mandible. 2 : a flared process of the lower anterior part of the upper articular surface of the ulna fitting into the coronoid fossa when the arm is flexed.
What is the function of coracoid bone?
The coracoid is a stout strong bone that connects the cranial edge of the sternum to the shoulder joint complex. It opposes the powerful contraction of the major pectoral muscle during the downstroke of the wing. It is fractured or luxated most often when the bird has a frontal collision with an object.
When does a fracture of the coronoid process occur?
Fractures of the coronoid process of the ulna are uncommon and often occur in association with elbow dislocation.
Can a coronoid fracture be repaired by olecranon?
Additionally, coronoid fractures associated with olecranon fractures can sometimes be reduced and fixed via the olecranon fracture site, through a posterolateral approach. Anatomical reduction of a larger coronoid process fracture is important for elbow joint stability and congruity.
Can a coronoid fracture be repaired with sutures?
In small type I and II, and multifragmentary, fractures of the coronoid process, the fragments with joint capsule and/or brachialis tendon can be reattached with sutures. For smaller anteromedial fractures, this requires a medial approach.
What to do for a nondisplaced coronoid tip fracture?
Treatment may be nonoperative for nondisplaced coronoid tip fractures with a stable elbow. Surgical management is indicated for anteromedial facet fractures or fractures associated with elbow instability.