Surgical correction of degenerative lumbosacral stenosis in dogs

The purpose of the study is to conduct a comparative evaluation of various methods for the correction of degenerative lumbosacral stenosis in dogs and to determine the most effective method. 32 dogs of various breeds and mestizos aged from one to 9 years were under observation. 8 dogs underwent surgery to correct degenerative lumbosacral stenosis by dorsal laminectomy followed by stabilization of L7-S1 screws 3.5-4.5 mm in diameter and polymethyl methacrylate. 24 dogs were operated on by the dorsal laminectomy method with the installation of the L7-S1 transpedicular system. Performing a dorsal laminectomy with L7-S1 stabilization with screws and bone cement is technically more difficult due to the impossibility of suturing the muscles over the metal structure, which in the early postoperative period is fraught with purulent complications due to the impossibility of creating a muscle frame over the cement fixator. In such cases, the risk of septic complications was significantly increased. Also, during revision operations, it becomes difficult to remove the cement and replace it if necessary. As a result of the studies, it was proved that dorsal laminectomy and installation of the L7-S1 transpedicular system ensures the disappearance of clinical signs of stenosis and rehabilitation of the animal in a shorter postoperative period, while providing unique opportunities for reoperation in cases of complications.