Evidence map›Paper›PMID 33165631›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022

Robotic-assisted TKA leads to a better prosthesis alignment and a better joint line restoration as compared to conventional TKA: a prospective randomized controlled trial.

Narendra V Vaidya, Ajinkya N Deshpande, Taufiq Panjwani, Rakesh Patil, Tanmay Jaysingani, Pratik Patil

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 10 pooled it
9.0field-weighted citation impact, top 1% of its field
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

68 citing papers in PubMed, 10 syntheses or guidelines pooled it, 105 citations in OpenAlex.

  1. Pooled it
  2. Continuous outcomes of robotic-assisted total knee arthroplasty trials are statistically fragile.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Robotic-assisted versus conventional total knee arthroplasty: a systematic review and meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Pooled it
  7. Pooled it
  8. Pooled it
  9. Pooled it
  10. Pooled it
  11. Trial
  12. Trial
  13. Trial
  14. Trial
  15. Trial
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

8 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Narendra V VaidyaDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India.
Ajinkya N DeshpandeDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India. ajdeshpande35@gmail.com.
Taufiq PanjwaniDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India.
Rakesh PatilDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India.
Tanmay JaysinganiDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India.
Pratik PatilDepartment of Orthopaedics, Lokmanya Hospital, Pradhikaran, Nigdi, Pune, India.
Patel Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCorrect positioning and alignment of the prosthesis is a very important factor for durability of prosthesis and implant survival which is improved with the use of technology in total knee arthroplasty. However, the long-term functional outcomes and survivorship are unclear. For this study, it was hypothesized that mechanical axis alignment of lower limb, post-operative joint line restoration, femoral and tibial component alignment is more accurate with the new handheld semi-active robotic-assisted TKA.

methodFrom April-2019 to March-2020, 60 patients with unilateral knee osteoarthritis who underwent total knee arthroplasties were included in this prospective randomised controlled study. Computer generated randomization was used. Study included 48 female patients and 12 male patients. Pre-operative and post-operative radiographic measurements were done and compared between the two groups.

resultsThere was a significant difference between two groups with respect to mechanical axis deviation, joint line deviation and coronal alignment of femoral and tibial prosthesis. Mechanical axis deviation > 3° was seen in eight cases (28.5%) in C-TKA group compared to one case (3.1%) in RA-TKA (p 0.019). Joint line deviation of 3.5 mm was noted in C-TKA group as compared to 0.9 mm in RA-TKA group (p < 0.001) which was statistically significant. However, whether this difference of 2.6 mm of joint line elevation between C-TKA and RA-TKA leads to any difference in clinical outcome in terms of knee kinematics and knee flexion needs to be investigated with further studies. Clinically restoring normal joint line is important for improved knee function after primary TKA. No significant difference was noted in femoral component rotation on post-operative computed tomography (CT) scan.

conclusionThe novel imageless, handheld semi-autonomous robotic system for TKA is highly accurate with respect to component positioning in coronal plane and mechanical alignment as compared to conventional TKA. Joint line is elevated in conventional TKA but is accurately restored using the robotic-assisted TKA which may lead to better patellofemoral kinematics. LEVEL OF EVIDENCE: I.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisOsteoarthritis, KneeRobotic Surgical ProceduresSurgery, Computer-AssistedFemaleHumansKnee JointMaleProspective StudiesConventionalCoronal alignmentHandheld burrHaptic feedbackJoint lineMechanical axisRoboticSemi-active systemTotal knee arthroplasty

Identifiers

PMID33165631
OpenAlexW3105597151

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.