Joint dislocations Flashcards
What cutaneous sign is present in axillary nerve palsy?
Numbness in badge patch area
What is the mechanism leading to Bankart lesion formation?
Anterior dislocation of the shoulder
-anterior labrum and capsule are detached from the glenoid
Hill-Sachs lesion is associated with anterior shoulder dislocation. What is it?
Fracture of the posterior humeral head
-due to impact of humeral head against the glenoid rim
Glenohumeral joint dislocation in what age group tends to have a high re-dislocation rate? How will these patients be managed?
<20
Surgical stabilisation may be offered
Perilunate dislocations must to be urgently reduced and stabilised with wires (T/F)
True
Why is it important to encourage early movement of finger joints following dislocation?
PIP and DIP joints become stiff very fast
What nerve may be damaged in hip dislocation?
sciatic nerve
How is a THR hip dislocation managed?
- Reduce the hip
2. Knee splint to reduce range of hip flexion
The patella tends to dislocate _______ due to sudden _____ contraction combined with a direct blow to the knee. With second dislocation, the risk increases from ___% after the first to __%.
laterally
quadriceps
10% to 50%
What ligament may need to be reconstructed in recurrent patellar dislocation?
Medial patellofemoral ligament
What vessel is commonly damaged in Knee dislocations?
What nerve may be damaged?
Popliteal artery
Common fibular nerve
Tarso-metatarsal dislocations arise by _____ of __________ foot.
rotation of hyperplantarflexed foot
In Acromioclavicular joint displacement, when may surgical management be appropriate?
When coracoclavicular ligaments damage occurs
-reconstruct ligaments surgically
Which sternoclavicular joint dislocations, anterior or posterior, are more problematic? Why?
Posterior dislocations
-they can compress trachea, oesophagus or brachicephalic vein
Anterior displacement can be left to heal alone
How are elbow dislocations treated?
- reduce
- cast for 1 week
- physio
