A comparative study of the reconstruction of medial patellofemoral ligament by orthopedics robotic positioning and traditional freehand positioning
LIANG Qiu-zhen
ZHENG Jiang
ZHAO Zan-dong
LIU Pei-dong
KANG Xin
ZHANG Mi
LIAO Chao-fan
WANG Yue
ZHANG Liang
Abstract：Objective To compare the differences in intraoperative handling,postoperative rehabilitation,early efficacy,and follow-up between orthopedic robotic positioning and traditional manual positioning for medial patellar ligament reconstruction.Methods A retrospective analysis was conducted on 42 patients who underwent single medial patellar ligament reconstruction at the Sports Medicine Diagnosis and Treatment Center of Honghui Hospital,Xi'an Jiaotong University from July 2020 to November 2022.Among them,19 cases were performed using orthopedic robotic positioning(robot group)and 23 cases were performed using traditional manual positioning(manual group).Various aspects,including intraoperative fluoroscopy frequency,the number of inserted guide wires,surgical time,and accuracy of femoral positions,were compared between the two groups.Results There was no significant difference in gender,age,body mass index(BMI),time from the last injury to surgery,tibial tubercle-trochlear groove distance,visual analogue scale(VAS),and preoperative subjective scores of the International Knee Documentation Committee(IKDC)between the two groups(P＞0.05).The robot group had significantly lower intraoperative fluoroscopy frequency(3.05±0.52)compared to the manual group(7.52±1.70)(P＜0.05).The number of guide wire insertions was 1 in the robot group,while it was(3.17±1.23)in the manual group.The surgical time in the robot group(74.21±12.6 minutes)was significantly longer than that in the manual group(65.35±11.79 minutes)(P＜0.05).The distance between the femoral tendon fixation point and the set standard position in the robot group was(1.01±0.26)mm,which was significantly better than the(4.23±0.91)mm in the manual operation group(P＜0.05).The IKDC subjective scores at 1 month postoperatively were significantly higher in the robot group than in the manual group(P＜0.05),while no significant difference was observed between the two groups at 3 months postoperatively and at the last follow-up(P＞0.05).Conclusions Both positioning methods are effective for medial patellar ligament reconstruction.However,orthopedic robotic-assisted positioning for medial patellar ligament reconstruction is more accurate in terms of femoral positions.It requires lower intraoperative fluoroscopy frequency,facilitates faster early recovery,and causes less trauma compared to traditional manual positioning.
Keywords：Patellar dislocationLigamentsarticularRobotic surgical proceduresPatellofemoral ligament
Publication Date：2024-11-19
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 878-883 )