Evidence map›Paper›PMID 40622097›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2025

Robotic-assisted burr preparation significantly improves cement penetration but not immediate fixation strength in total knee arthroplasty.

Michael Tim-Yun Ong, Mingqian Yu, Mingde Cao, Dennis King Hang Yee, Kevin Ki Wai Ho, Gene Chi Wai Man, Mingguang Bi, Jonathan Ng, Jiankun Xu, James Griffith and 1 more

Abstract readComparative Study
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Michael Tim-Yun OngDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.ORCID https://orcid.org/0000-0002-4460-9286
Mingqian YuDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.
Mingde CaoDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.ORCID https://orcid.org/0000-0003-1445-7856
Dennis King Hang YeeDepartment of Orthopaedics and Traumatology, Alice Ho Miu Ling Nethersole Hospital, Hong Kong, SAR, China.
Kevin Ki Wai HoDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.
Gene Chi Wai ManDepartment of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China.
Mingguang BiDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.
Jonathan NgDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.
Jiankun XuDepartment of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China.
James GriffithDepartment of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong, SAR, China.
Patrick Shu-Hang YungDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough robotic-assisted total knee arthroplasty (TKA) is recognized for improving surgical precision, the effect of its bone preparation technique on cemented fixation remains unclear. This study compared the impact of robotic-assisted burr versus oscillating saw techniques on cement penetration and fixation strength.

methodsSeven paired (n = 14) fresh-frozen cadaveric specimens underwent either robotic-assisted TKA using a burr system or conventional TKA using an oscillating saw. Computer tomography scans quantified cement penetration, while maximum failure load was determined using pull-out testing.

resultsCement penetration was significantly greater in the burr group compared to the saw group (3.79 ± 0.84 cm³ vs. 2.67 ± 0.99 cm³, p = 0.03). The average pull-out strength for the burr group has no statistical difference compared with the saw group (2939 ± 760.9 N vs. 2372 ± 760.5 N, p = 0.16).

conclusionBone preparation using a burr technique significantly improves cement penetration compared to conventional oscillating saw technique. However, this did not translate to improved immediate fixation strength in time-zero biomechanical testing. Further clinical studies are needed to determine if enhanced cement penetration provides long-term benefits for implant survivorship. LEVEL OF EVIDENCE: N/A.

Indexed as

Arthroplasty, Replacement, KneeBone CementsRobotic Surgical ProceduresAgedAged, 80 and overBiomechanical PhenomenaCadaverFemaleHumansMaleMiddle AgedTomography, X-Ray ComputedBone Cementscement penetrationoscillating sawosteotomyrobotic‐assisted burrtotal knee arthroplasty

Identifiers

PMID40622097
PMCPMC12582227

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Registered trials

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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.