🔍 Key Findings
- TPLO with the contoured saw guide achieved more accurate osteotomy angles for both inclination and torsion in bone models and cadaveric limbs (p < .05).
- Medial cortical damage was significantly lower with the contoured guide (247 vs. 1866 pixels in bone models; p < .001).
- No significant difference in eccentricity (distance between actual and intended osteotomy center) was found between groups.
- Postoperative tibial plateau angle (TPA) was similar between groups (6.4° vs. 7.6°; p = .15), though both were slightly higher than the target of 6°.
- Deviation in medial mechanical proximal tibial angle (mMPTA) showed no significant group difference; valgus deformity occurred in both.
- Osteotomy and device application times were similar between the contoured guide and jig-assisted TPLO.
- The contoured guide eliminated the need for proximal jig pin, potentially reducing intra-articular pin risk.
- The guide's multiple pin fixation system improved stability and alignment, supporting safer osteotomy on curved tibial surfaces.
