Leczenie braku zrostu septycznych złamań kości przedramienia i kości podudzia u psów przy użyciu okólnego zewnętrznego mocowania szkieletowego – badanie retrospektywne. Cz. II

Complications

Of the 20 dogs with nonunion fractures that achieved bone healing, six had minor complications and five had major complications. Minor complications included wire and pin tract discharge (n = 4), threaded pin loosening (n = 1), and gos-sybipoma (n = 1). Wire and pin tract discharge were solved by means of local pin tract wound care and antibiotic drug therapy. Threaded pin loosening was managed by implant removal. In one dog (case 23), a gauze sponge left in the wound during surgery was detected during reexamination and removed from the sinus tract.

Postoperative major complications in-cluded wire breakage (n = 1), premature wire loosening (n = 4), refracture (n = 1) and patellar luxation (n = 1). Wire breakage was addressed by wire replacement. Premature wire loosening was managed by wire replacement or ring removal. Seven days after CESF removal, one dog (case 16) suffered a re-fracture at the nonunion fracture site after minor trauma. The radius was stabilized using a nine-hole 2.0/2.7 mm cut-to-length bone plate (Veterinary Cuttable Plate Synthes Vet, West Chester, PA, USA) and an autogenous cancellous bone graft was ap-plied; this resulted in complete healing. Another dog (case 22) with a 26° proximal tibia valgus deformity developed a grade 2 medial patellar luxation and was mildly lame; however, the owner refused additional corrective osteotomy (Figure 2).

In three dogs, one each in groups A, B and C, the fracture did not heal. One dog (case 20), was not weight-bearing 11 days after radial bone transport and there was no radiographic evidence of bone regeneration. The distraction was interrupted for nine days but there was no improvement and no discernible radiographic regenerate bone formation. Revision surgery was suggested but the owner opted for limb ampu-tation. In another dog (case 8), the proximal ring was removed 120 days after application of the CESF because of premature wire loosening. The dog was not weight bearing a...