Evidence map›Paper›PMID 33484344›Full record

ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2021

Pie-crusting of proximal medial collateral ligament for correcting varus deformity in total knee arthroplasty.

Tarun Goyal, Souvik Paul, Alexander Schuh, Arghya Kundu Choudhury

Abstract readControlled Clinical Trial
PubMed Publisher
In one paragraph

Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Thicker polyethylene inserts for varus deformity versus thinner inserts for flexion contracture in total knee arthroplasty: a retrospective comparative study.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
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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

4 authors.

Tarun GoyalDepartment of Orthopaedics, All India Institute of Medical Sciences, Bathinda, Bathinda, Punjab, 151001, India. goyal.tarun@gmail.com.ORCID http://orcid.org/0000-0002-1428-9947
Souvik PaulDepartment of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, Rishikesh, India.ORCID http://orcid.org/0000-0002-1172-3664
Alexander SchuhKliniken des Landkreises Neumarkt i.d.OPf, Nürnberger Str. 12, 92318, Neumarkt, Germany.
Arghya Kundu ChoudhuryDepartment of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, Rishikesh, India.ORCID https://orcid.org/0000-0002-8829-1206

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAim of this study was to compare outcomes of a newer technique of pie-crusting of the femoral origin of medial collateral ligament (MCL) with the conventional medial release, for correcting varus deformity during total knee arthroplasty. Null hypothesis was that there is no difference in clinical outcomes between these two techniques.

methodsAll patients requiring an additional medial release after excision of osteophytes and release of deep MCL during total knee arthroplasty were allocated into two groups, alternately. Each group composed of 40 patients. Pie-crusting with a needle was done near the femoral attachment of superficial MCL in group-1, whereas the group-2 underwent classic sub-periosteal release of the tibial insertion of superficial MCL. All the patients were assessed for any laxity (more than 3 mm opening) intraoperatively or at one-year follow-up, pain score at 12 and 24 h after the surgery, Knee Society Score, Western Ontario and McMaster Universities Arthritis Index and range of motion 12 months after the surgery.

resultsNone of the patients showed any signs of laxity or failure at one-year follow-up. Pain scores were slightly better (not statistically significant) in the group-1. However, no differences were noted in functional outcomes scores.

conclusionPie-crusting of superficial MCL is a safe, controlled and less invasive approach for medial soft tissue release. When knee deformity is not correctable with initial soft tissue release, this is an appropriate next surgical step. There does not appear to be a risk of over-release during the surgery or afterward. STUDY

designNon-randomized controlled trial, Level II.

Indexed as

Arthroplasty, Replacement, KneeMedial Collateral Ligament, KneeOsteoarthritis, KneeHumansKnee JointLigaments, ArticularRange of Motion, ArticularDeformityGap-balancingMedial collateral ligamentPie-crustingTotal knee arthroplastyVarus

Identifiers

PMID33484344

What OpenQuestion holds

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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.