Trial reportOrthopaedic surgery2025
Precise Acetabular Prosthesis Positioning Using a Novel Robot-Assisted Total Hip Arthroplasty System: A Multicenter, Randomized Controlled Trial.
Trial report in Orthopaedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05947734 (A Randomized Controlled, Multicenter Study for Patients Underwent Total Hip Arthroplasties Assisted by "VTS" Surgical Robotic System), which is not on this map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Randomized Controlled, Multicenter Study for Patients Underwent Total Hip Arthroplasties Assisted by "VTS" Surgical Robotic System
Who cites it
7 citing papers in PubMed.
- Temporal Evolution and Stationary Point Mechanisms of Pelvic Characteristic Angles Throughout the Sit-to-Stand Cycle.Orthopaedic surgery · 2026Article
- [Domestic ROPA surgical robot for total hip arthroplasty: An artificial bone experiments].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Article
- [Progress and future prospects of robot-assisted total hip arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Review
- Robot-assisted total hip arthroplasty (THA) was associated with a shorter learning curve, greater implant accuracy, and reduced team stress than conventional THA when performed by a junior surgeon: a comparative study.Journal of robotic surgery · 2026Article
- [Short-term effectiveness of visual treatment solution-assisted treatment for Crowe typeZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Article
- A three-dimensional digital study on clinical anatomy of the acetabulum in elderly population aged 65-84 years in inner Mongolia, China.BMC geriatrics · 2026Article
- MAKO Robotic-Arm-Assisted Versus Conventional Dual-Incision Total Hip Arthroplasty: A Propensity-Score-Matched Retrospective Study.Journal of clinical medicine · 2026Article
Corrections and comments
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTotal hip arthroplasty (THA) is currently one of the most effective treatment methods for end-stage hip joint disease, and its long-term effectiveness largely depends on the accurate placement of the acetabular prosthesis. In conventional surgery, the placement of the acetabular prosthesis mainly relies on the surgeon's clinical experience and surgical techniques. To further improve the accuracy of prosthesis placement, a new robotic system for THA is designed. The purpose of this study is to verify the effectiveness and safety of THA assisted by this robotic system.
methodA multicenter, prospective, randomized controlled, superiority study design was adopted with statistical methods of t test and Chi-squared test. Participants undergoing primary THA have been enrolled in three centers of joint surgery in China since July 17, 2023. Robotic THA was operated in the experimental group, and conventional instruments were used in the control group. The primary outcome is the proportion of anteversion and inclination angles in the safe zone. The secondary outcomes include operation time, WOMAC score, Harris score, SF-36 health questionnaire, dislocation rate of hip joint, and rates of adverse events and serious adverse events.
resultsA total of 138 patients were included in this study. The proportion of both anteversion and inclination angles in the safe zone was 92.2% in the experimental group and 50.8% in the control group, with significant difference (p < 0.01). The average operation time in the experimental group and control group was 116.4 and 80.5 min respectively, with significant difference (p < 0.01). There was no significant difference in WOMAC score, Harris score, and SF-36 between the two groups (6 ± 2) weeks after operation (p > 0.05). The dislocation rate of hip joint in the experimental group and control group were 3.0% and 1.5%, respectively, without significant difference (p > 0.05). The rate of adverse events and severe adverse events in the experimental group and control group also showed no significant difference (p > 0.05). No adverse events or serious adverse events were judged to be "definitely related" to the experimental instruments.
conclusionRobotic THA could prolong the operation time within an acceptable range, but more precise acetabular prosthesis positioning could be obtained when compared with conventional surgery. Besides, no significant difference was found in function scores, dislocation rate or other adverse events, which indicates that this new robot system shows both good effectiveness and safety in THA.
trial registrationClinical Trials: NCT05947734.
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