ArticleArchives of orthopaedic and trauma surgery2026
Robotic-arm assisted total hip arthroplasty using a short metaphyseal filling collared femoral implant through a direct anterior approach: minimum two-year outcomes.
Article in Archives of orthopaedic and trauma surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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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.
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Who cites it
1 citing paper in PubMed.
- Robot-assisted total hip arthroplasty: does improved precision translate into better clinical outcomes? A systematic review.International orthopaedics · 2026Review
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionShort, collared, metaphyseal-filling femoral stems preserve proximal bone and achieve stable fixation while reducing stress shielding compared to diaphyseal-engaging stems. Early six-month data for one such stem demonstrated improved patient-reported outcomes with no implant-related complications. This study extends follow-up of the same cohort to a minimum of two years to evaluate (a) functional outcomes, (b) implant-related complications, and (c) survivorship. MATERIALS AND
methodsThe prospective cohort of 120 patients underwent robotic-arm assisted total hip arthroplasty (THA) through a direct anterior approach (DAA) using a short, collared, metaphyseal-filling stem. Patients had a mean age of 69.2 years (range 37-90) and a body mass index of 28.2 (range 18.1-49.1), and they were 71% women and were followed for a mean of 2.6 years (range 2.0-3.4). The Hip Disability and Osteoarthritis Outcome Score for Joint Replacement (HOOS-JR) was compared with baseline using Student's t-tests. Complications included all-cause revision, periprosthetic joint infection, periprosthetic fracture, and dislocation at final follow-up.
resultsAt mean follow-up, HOOS-JR scores improved from a mean of 54.5 ± 13.9 preoperatively to 94.4 ± 10.3 (P < 0.001). The overall survivorship was 98.1% following two septic revisions.
conclusionsThis short, collared, metaphyseal-filling stem demonstrated sustained functional improvements and low implant-related complication rates of the prior six-month follow-up through a minimum of two years. These results support the continued clinical efficacy and stability of the implant in robotic-arm assisted DAA THA.
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