Impact of robot assistance on restoration of limb length and offset distance in total hip arthroplasty.
10.7507/1002-1892.202405034
- Author:
Ziqi YUAN
1
;
Yang LI
1
;
Hua TIAN
1
Author Information
1. Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, P. R. China.
- Publication Type:Journal Article
- Keywords:
Robot-assisted surgery;
global offset;
limb length discrepancy;
total hip arthroplasty
- MeSH:
Humans;
Arthroplasty, Replacement, Hip/methods*;
Retrospective Studies;
Robotic Surgical Procedures/methods*;
Leg Length Inequality/prevention & control*;
Male;
Female;
Treatment Outcome;
Middle Aged;
Aged;
Hip Joint/diagnostic imaging*
- From:
Chinese Journal of Reparative and Reconstructive Surgery
2024;38(11):1307-1311
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To analyze the impact of robot assistance on the restoration of limb length and offset distance in total hip arthroplasty (THA).
METHODS:A retrospective analysis was conducted on the clinical data of 316 patients who underwent unilateral primary THA between September 2019 and August 2023. Among them, 117 patients underwent robot-assisted THA (group A), and 199 patients underwent conventional THA (group B). There was no significant difference between the two groups in the gender, age, or side of the hip replacement ( P>0.05); but there was a significant difference in the preoperative diagnosis ( P<0.05). The leg length discrepancy (LLD) and global offset (GO) dfference were measured on preoperative anteroposterior pelvic X-ray films, and absolute values were used for comparison between groups.
RESULTS:The operations in both groups were successfully completed. Postoperative imaging measurements showed that the LLD and GO dfference in group A were significantly lower than those in group B ( P<0.05). Among them, group A had 32 cases (27.4%), 5 cases (4.3%), and 0 case (0) of LLD>3 mm, >5 mm, and >10 mm, respectively, while group B had 115 cases (57.8%), 75 cases (37.7%), and 22 cases (11.1%), respectively; and the differences in above indicators between groups were significant ( P<0.05). Group A had 40 cases (34.2%), 3 cases (2.6%), and 0 case (0) of GO dfference>5 mm, >10 mm, and >20 mm, respectively; group B had 103 cases (51.8%), 54 cases (27.1%), and 7 cases (3.5%), respectively. There was no significant difference in the proportion of patients with GO>20 mm between groups ( P>0.05), while there were significant differences in other indicators between groups ( P<0.05).
CONCLUSION:Compared with traditional THA, robot assisted THA has more advantages in restoration of limb length and offset distance.
