Randomized Comparison of PARtial Wrist Fusion With or Without Triquetral Excision (PARTE)

Inclusion Criteria: * Participant has a stage II or III scapholunate advanced collapse (SLAC) or scaphoid nonunion advanced collapse (SNAC) wrist and is a surgical candidate for the included surgical interventions Exclusion Criteria: * Participant has been diagnosed with other forms of wrist arthritis other than SLAC or SNAC * Participant has significant arthritis of the ipsilateral hand/finger joint(s), major joint trauma, previous major wrist surgery, infection or neuromuscular pathology affecting the function of the ipsilateral upper extremity or ability to make a fist * Participant has a physical or mental health condition preventing completion of consent or questionnaires * Participant does not speak/read/understand English * Participant has no fixed address or means of contact * Participant is unwilling to complete necessary follow-ups * Surgeon concludes that eligible salvage techniques are not appropriate at the time of surgery (based on injury characteristics or concomitant wrist pathology)