What is the biomechanical cause of a Boutonnière deformity?
A) Overstretching of the volar plate (palmar plate) and bowstringing of the lateral bands of the extensor hood mechanism
B) Volar displacement of the extensor carpi ulnaris tendon,causing a flexion force at the wrist joint
C) Rupture of the central band (central slip) of the extensor hood mechanism,causing the lateral bands to slip in a volar direction at the PIP joint
D) Overstretching or rupture of the collateral ligaments of the MCP joints
Correct Answer:
Verified
Q2: Which of the following is least appropriate
Q9: During the subacute stage of soft tissue
Q11: Each of the following is true regarding
Q11: "Place-and-hold" exercises are:
A)A form of dynamic exercises
Q12: Which of the following is true about
Q13: Your patient has a 5-year history of
Q14: You are evaluating a patient with rheumatoid
Q15: Your patient has an "extensor lag" of
Q18: Your patient has an "extensor lag" of
Q21: Prerequisites for successful PIP arthroplasty include all
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents