Evidence map›Paper›PMID 23910821›Full record

Trial reportThe Journal of arthroplasty2013

Patient-specific instrumentation does not shorten surgical time: a prospective, randomized trial.

William G Hamilton, Nancy L Parks, Arjun Saxena

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The Journal of arthroplasty, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 11 pooled it
–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

50 citing papers in PubMed, 11 syntheses or guidelines pooled it.

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  4. Favourable alignment outcomes with MRI-based patient-specific instruments in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
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  14. No improvement in reducing outliers in coronal axis alignment with patient-specific instrumentation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
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  17. PSI kinematic versus non-PSI mechanical alignment in total knee arthroplasty: a prospective, randomized study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

William G HamiltonAnderson Orthopaedic Research Institute, Alexandria, Virginia.
Nancy L Parks
Arjun Saxena

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The primary purpose of this prospective, randomized study was to determine if patient-specific instrumentation (PSI) for total knee arthroplasty (TKA) shortened surgical time. Secondarily the number of instrument trays and alignment were also compared to cases performed with traditional instrumentation (TI). Fifty-two cases (26 per group) were randomized and videotaped to measure the length of surgery, as well as each individual surgical step. Component alignment and mechanical axis was measured radiographically for each patient. Total surgical time was over 4 minutes shorter for patients in the TI group (57.4 minutes vs. 61.8 minutes; P<0.01). More instrument trays were used in the TI group (7.3 vs. 2.5; P<0.001). There was no significant difference in mechanical alignment between groups on postoperative long alignment radiographs (P=0.77). In conclusion, PSI did not shorten surgical time or improve alignment compared with TI in this prospective, randomized trial, but did reduce the required number of trays.

Indexed as

Operative TimeAgedAged, 80 and overArthroplasty, Replacement, KneeBone MalalignmentFemaleHumansKnee JointKnee ProsthesisMagnetic Resonance ImagingMaleMiddle AgedOsteoarthritis, KneePatient-Centered CarePostoperative PeriodPreoperative Carealignmentpatient-specific instrumentationsurgical timetotal knee arthroplasty

Identifiers

PMID23910821

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.