• Andrzej Żyluk and Agnieszka Mazur-Grzesiuk.
• Klinika Chirurgii Ogólnej i Chirurgii Ręki, Pomorski Uniwersytet Medyczny w Szczecinie, Polska / Department of General and Hand Surgery, Pomeranian Medical University in Szczecin, Poland.
• Ortop Traumatol Rehabil. 2018 Oct 31; 20 (5): 389-399.

BackgroundPersistent, long-lasting pseudoarthrosis of the scaphoid or scapholunate dissociation results in arthrosis of the radio-scaphoid joint termed scaphoid non-union advanced collapse (SNAC) or scapholunate advanced collapse (SLAC), which causes pain, reduction in wrist movements and weakness of the hand grip. Scaphoid resection followed by "four-corner" midcarpal arthrodesis is a recognized treatment for this condition.Material And MethodsThe study evaluated the results of treatment of 27 patients with arthrosis of the wrist type SNAC (n = 15) and SLAC (n = 12) after an average of 4 years after surgery (range from 2 to 8 years) Results. The mean numerical pain score for wrist movements was 3.6 (range: 1-5). The mean active range of wrist movement (affected vs healthy hand) was: flexion 27° vs 58° (46%), extension 27° vs 52° (53%), ulnar deviation 16° vs 26° (62%), radial deviation 9° vs 17° (53%), total grip strength 22 kG vs 29 kG (76%), The mean DASH score was 22 (range: 4-36) and the mean Mayo score was 72 (range: 65-80). None of the patients required revision surgery. Of the 16 patients employed prior to the surgery, 10 returned to work after a mean of 4 months of sick leave.Conclusions1. The results of the treatment presented in this stu-dy, after a relatively long follow-up period, show a beneficial effect of the surgery on pain intensity and improvement of hand dexterity, at the cost of a mild reduction in wrist movements. 2. It seems that this technique offers good, predicta-ble outcomes and may be recommended for Wa-t-son 2° and 3° SNAC or SLAC wrist arthrosis.

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