Elbow/ wrist/ hand Flashcards
Components of UCL and ROM with most stress at each band
Anterior band: the strongest, Todd from full extension to 60° of flexion
Posterior band taught from 60 to 100° of flexion
Transverse band a.k.a. Cooper’s ligament variably present
The Trochlea and it’s effect on the carrying angle
Carrying angle males and females
Trochlea extends more distantly then lateral consuls
Female = 13° to 60° male = 11° to 14°
RCL components and range of motion that most stress each component
Annular ligament: stabilizes PRUJ
Radio portion: taut through flexion and extension
Ulnar portion taught through both flexion and extension provide stability to humeral owner joint
Accessory portion: assists RCL and stabilizing the annular ligament against Varus stress, variably present
Radial head’s influence on stability for valgus stress
With UCL insufficiency Radial head plays a strong role as a stabilizer to valgus stress
Terrible Triad of the elbow
Posterior elbow dislocation with Radial head fracture in a coronoid fracture
Nerve injury and elbow dislocation
Ulnar and median nerve injuries more common with simple dislocations
Radial nerve injury more common with complex dislocations involving the radial head
Goals of nonoperative management of a simple dislocation
First: achieve stable joint immediate functional mobility is recommended
Secon:d if joint is unstable immobilization for less than 14 days
Five considerations for elbow dislocation
One – timing Two – articulations involved Three – direction of displacement Four – degree of displacement Five – presence or absence of fractures
Three core principles of operative management elbow fracture
One – restoration of integrity of humeralulnar joint
Two – restoration of Radial head position
Three – repair of collateral ligaments
Post surgical plan of care for terrible Triad injury
Immobilization – at 90° for 0 to 10 days
Active range of motion- begin between three and 15 days postoperatively
Strengthening – begin at eight weeks/when radiograph indicates fx healed
Radial head fracture three Common mechanisms of injury
Ask your road on a pronated forearm, direct blow to the elbow, hyper flexion injury
Indications for a total elbow arthroplasty
Advanced age, low physical demand, chronic instability, advanced rheumatoid arthritis, posttraumatic osteoarthritis, ankylosis of the elbow, stiffness, functional range of motion last, and pain
Heterotropic ossificans in three conditions that contribute to its formation
The appearance of ectopic bone in the para particular soft tissues
Osteogenic precursor cells, inducing agents, and a permissive environment
Indications for operative management of elbow stiffness
Failure of nonoperative management, chronic contracture present for up to 12 months, and lack of functional range of motion
Three mechanisms of injury for RCL
Elbow dislocation, varus elbow stress or iatrogenic cause
Presentation of our RCL or PLRI injury
Vague about his comfort, lateral elbow pain, clicking, snapping, or clicking it is worse with supination of the forearm