Trial reportOrthopaedic surgery2022
Total Hip Arthroplasty with Robotic Arm Assistance for Precise Cup Positioning: A Case-Control Study.
Trial report in Orthopaedic surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
36 citing papers in PubMed, 5 syntheses or guidelines pooled it, 50 citations in OpenAlex.
- Robotics improves reproducibility of component positioning while producing modest but measurable clinical benefits in total hip arthroplasty: an umbrella review of systematic reviews and meta-analyses.Journal of robotic surgery · 2026Pooled it
- Robot-assisted total hip arthroplasty on infection outcomes: a systematic review and meta-analysis.Journal of robotic surgery · 2026Pooled it
- Safety and efficacy of orthopedic robots in total hip arthroplasty: a network meta-analysis and systematic review.Journal of orthopaedic surgery and research · 2024Pooled it
- MAKO robot-assisted total hip arthroplasty: a comprehensive meta-analysis of efficacy and safety outcomes.Journal of orthopaedic surgery and research · 2024Pooled it
- Contemporary analysis of the learning curve for robotic-assisted total hip arthroplasty emerging technologies.Journal of robotic surgery · 2024Pooled it
- Radiographic evaluation of robot-assisted versus manual total hip arthroplasty: a multicenter randomized controlled trial.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2024Trial
- The learning curve of a novel seven-axis robot-assisted total hip arthroplasty system: a randomized controlled trial.BMC musculoskeletal disorders · 2024Trial
- Five-year implant-related complication rates of total hip arthroplasty performed for osteonecrosis were not improved by robotic-assisted or computer-navigated techniques.International orthopaedics · 2026Article
- Robot-assisted total hip arthroplasty: does improved precision translate into better clinical outcomes? A systematic review.International orthopaedics · 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
- Comparative study on the performance and early clinical outcomes of senior and junior orthopaedic surgeons in traditional versus robot-assisted total hip arthroplasty.Journal of robotic surgery · 2026Article
- Article
- MAKO Robotic-Arm-Assisted Versus Conventional Dual-Incision Total Hip Arthroplasty: A Propensity-Score-Matched Retrospective Study.Journal of clinical medicine · 2026Article
- The Application of artificial intelligence in periprosthetic joint infection.Journal of advanced research · 2026Review
- A study on the early clinical outcomes and learning curve of ARTHROBOT-assisted total hip arthroplasty under the ERAS concept.Journal of robotic surgery · 2025Article
- Robot-assisted total hip arthroplasty: optimal and rapid preservation of femoral offset and operated lower limb length.Journal of robotic surgery · 2025Article
- Learning Curves Associated With Robotic Total Hip Arthroplasty: A Scoping Review.Orthopaedic surgery · 2025Article
- Efficacy of a novel, fluoroscopy-based robotic-assisted total hip arthroplasty system in restoring limb length and offset.Archives of orthopaedic and trauma surgery · 2025Article
- Robotic-assistance is associated with better joint outcomes compared to conventional techniques in surgically routine total hip arthroplasty: a propensity-matched large database study of 3948 patients.Archives of orthopaedic and trauma surgery · 2025Article
- Relating total hip replacement and acetabular cup positioning with outcome: A systematic review.Bioinformation · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine whether more precise cup positioning can be achieved with robot-assisted total hip arthroplasty (THA) as compared to conventional THA.
methodsIn this study, between July 2019 and May 2021, 93 patients aged 23-75 years with osteonecrosis of the femoral head (ONFH) and adult developmental dysplasia of hip who underwent first hip surgery were included in the study. They were randomly assigned to either the robotic-assisted THA group (n = 45) or the conventional THA group (n = 48). After the operation, all patients were given routine rapid rehabilitation guidance. The duration of operation was recorded to estimate the learning curve through cumulative summation analysis. We compared the demographics, duration of operation, cup positioning, leg length discrepancy, hip offset, and Harris Hip Score between robot-assisted THA and manual THA. Precision in the positioning of the acetabular prosthesis using the MAKO system was also compared between the two groups.
resultsThe mean duration of operation for the robot-assisted THA group was 91.37 ± 17.34 min (range: 63 to 135 min), which was significantly higher than that for the conventional THA group. When the number of procedures was increased to 13, the duration of operation in the robot-assisted group decreased significantly and gradually became stable. In terms of duration of operation, robot-assisted THA was associated with a learning curve of 13 cases. The mean amount of bleeding in the robot-assisted THA group was not significantly different from that in conventional THA group (328 ± 210 ml vs 315 ± 205 ml) (p = 0.741). There was no significant difference in the proportion of prostheses located within Lewinnek's safe zone between robot-assisted THA group and conventional THA group (69.81% vs 64.41%). The leg length discrepancy (LLD) was significantly smaller in the robot-assisted THA group than in the conventional THA group (p < 0.001), but both were within acceptable limits (10 mm). The inclination and anteversion angles of the acetabular prosthesis planned before operations were correlated with the actual measurement (r = 0.857 p < 0.001, r = 0.830, p < 0.001). After surgery, none of the patients experienced hip dislocation, aseptic loosening, or periprosthetic infection during the 3 months of follow-up.
conclusionThe proportion of acetabular prostheses in the Lewinnek's safety zone was higher and the extent of LLD was significantly lower in the robot-assisted THA group, as compared to the same metrics in the conventional THA group. The MAKO robot improved the accuracy of implant placement in THA.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.