Abstract
Backgrounds:
This retrospective study aims to comparatively analyze the lower limb alignment correction capabilities of MAKO robot-assisted surgery and conventional surgery.
Methods
Clinical data of 70 patients who underwent UKA treatment in the Department of Orthopedics, Qingdao University Affiliated Hospital, from January 2022 to November 2023 were reviewed. Among them, 48 patients who underwent MAKO robot-assisted UKA were included in the MAKO robot group, and 22 patients who underwent conventional UKA were included in the conventional group. The preoperative and postoperative lower limb alignment hip-knee-ankle (HKA) angles of the two groups were recorded and subjected to inter-group and intra-group analysis.
Results
Both groups of patients successfully completed the surgeries. The postoperative HKA angle in the MAKO robot group averaged 176.03°±3.08°, showing an average correction of 5.13°±2.75° compared to the preoperative angle (170.09°±3.74°), with a statistically significant difference (t = 12.90, p < 0.05). In the conventional group, the postoperative HKA angle averaged 175.47°±2.40°, demonstrating an average correction of 5.47°±2.21° compared to the preoperative angle (170.00°±2.95°), also with a statistically significant difference (t = 11.62, p < 0.05). However, the comparison of postoperative HKA angles and correction degrees between the two groups showed no statistically significant difference (t = 0.76, p > 0.05; t = 0.51, p > 0.05).
Conclusion
Both MAKO robot-assisted UKA and conventional UKA effectively corrected the lower limb alignment of patients postoperatively. However, compared to conventional surgery, MAKO robot-assisted UKA did not demonstrate a significant advantage in lower limb alignment correction ability.