Abstract
Objective: To prospectively evaluate the effect of a computed tomography (CT)-based three-dimensional (3D) printing surgical guide on surgical accuracy of tibial plateau leveling osteotomy (TPLO).Study Design: Cadaveric study.Animals: Canine cadaveric hindlimbs (n = 14).Methods: TPLO was performed on cadaver hindlimbs disarticulated at the coxofemoral joint to compare and evaluate the conventional TPLO method (n = 7) with one that used customized 3D printing surgical guides (n = 7). The operation time and postoperative tibial plateau angle (TPA) of the osteotomy were evaluated. Moreover, the osteotomy inclination, torsion, and distance and the direction of eccentricity were assessed using CT reconstruction.Results: Significant differences in the operation time (p < 0.001), postoperative TPA (p < 0.05), osteotomy inclination (p < 0.05), and osteotomy torsion (p < 0.05) were observed.Conclusion: The use of TPLO surgical guide reduced the operation time and inaccurate osteotomy.Clinical Significance: The surgical technique applied with a customized 3D printing surgical guide could be used to perform osteotomy and TPA adjustment more precisely than conventional TPLO.
Highlights
Cranial cruciate ligament rupture is considered one of the common causes of hind limb lameness in dogs, and it results in stifle joint instability and progressive osteoarthritis [1,2,3]
Clinical Significance: The surgical technique applied with a customized 3D printing surgical guide could be used to perform osteotomy and tibial plateau angle (TPA) adjustment more precisely than conventional tibial plateau leveling osteotomy (TPLO)
Tibial plateau leveling osteotomy (TPLO) is a common surgical technique that has been used for cranial cruciate ligament rupture and is being increasingly performed in small breed dogs as well as large breed dogs [6,7,8,9]
Summary
Cranial cruciate ligament rupture is considered one of the common causes of hind limb lameness in dogs, and it results in stifle joint instability and progressive osteoarthritis [1,2,3]. Many orthopedic surgical techniques have been developed for cranial cruciate ligament rupture to stabilize the stifle joint, alleviate pain, and minimize osteoarthritis [4, 5]. Tibial plateau leveling osteotomy (TPLO) is a common surgical technique that has been used for cranial cruciate ligament rupture and is being increasingly performed in small breed dogs as well as large breed dogs [6,7,8,9]. With improvement in the understanding of TPLO, researchers have recommended osteotomy techniques, surgical instruments, and implants [17,18,19,20,21,22]
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