20241227 Wrist Arthroscopy - Dr Dzul

What structure is at risk with the establishment of the 6U portal

• A. Superficial sensory branch of the radial nerve

• B. Extensor digitorum

• C. Extensor policus longus

• D. Dorsal cutaneous branch of the ulnar nerve

• E. Ulnar artery

A 22 year old man presents with pain and hyperesthesia in the dorsoradial wrist and thumb 6 months after undergoing wrist arthroscopy for an acute wrist injury. Placement of which of the following portals is likely responsible for his symptoms?

• A. 6U

• B. 6R

• C. 1-2

• D. MCU

• E. 4-5

Regarding wrist arthroscopy, which of the statement is true:

• A. Better visualization in wet scope due to magnification in fluid medium

• B. Normal contour of tissues are held in place by the fluid in wet scope

• C. Traction weight should be between 7-10kg

• D. Main working portal for TFCC repair is 6U

• E. The radioscapholunate ligamentis an important structure when viewing through 3-4 portal for orientation

Which of the following instruments is most commonly used for diagnostic wrist arthroscopy?

• A. Shaver

• B. Arthroscope with a 30° lens

• C. Radiofrequency ablator

• D. Grasper

• E. Probe

A 28-year-old female gymnast experienced a traction injury to her left wrist two months ago and reported ulnar-sided wrist pain. During diagnostic arthroscopy, a lesion on the TFCC was identified (Figure 1). What is the Palmer classification of this injury, and what is the recommended surgical treatment?

• A. Palmer 1A, repair

• B. Palmer 1B, ulnar diaphyseal shortening

• C. Palmer 1C, repair

• D. Palmer 1A, debridement

• E. Palmer 1B, repair