Octylcyanoacrylate (Dermabond) has been found to be a viable method in nailbed repair, and has the advantage of being a faster procedure.
Strauss et al performed a level 1 randomized trial of 2-octylcyanoacrylate (Dermabond) versus suture repair of nailbed injuries. They found the only significant difference was that 2-octylcyanoacrylate had a shorter procedure time. All other indices were similar.
Richards et al provide a description of their technique using dermabond to secure the nail following a nailbed repair. They found good results with no complications in their cohort of 22 patients, and recommend it as a technique.
Answer 1,2,4,5: There is no difference in these outcomes when comparing 2-octylcyanoacrylate (Dermabond) versus suture repair
Strauss EJ, Weil WM, Jordan C, et al: A prospective, randomized, controlled trial of 2- octylcyanoacrylate versus suture repair for nail bed injuries. J Hand Surg Am 2008;33:250- 253
PMID:18294549 (Link to Abstract)
Richards AM, Chrick A, Cole RP: A novel method of securing the nail following nail bed repair. Plast Reconstr Surg 1999;103:1983-1985
PMID:10359264 (Link to Abstract)