Evidence map›Paper›PMID 31312876›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Foot loading pattern and hind foot alignment are corrected in varus knees following total knee arthroplasty: a pedobarographic analysis.

Dhanasekara Raja Palanisami, Raja Bhaskara Rajasekaran, Praveen Kumar Reddy, Rajkumar Natesan, Arvinth Sethuraman, Shanmuganathan Rajasekaran

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Dhanasekara Raja PalanisamiDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India.
Raja Bhaskara RajasekaranDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India. rajalibra299@gmail.com.ORCID http://orcid.org/0000-0003-0378-7411
Praveen Kumar ReddyDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India.
Rajkumar NatesanDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India.
Arvinth SethuramanDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India.
Shanmuganathan RajasekaranDepartment of Orthopaedics & Trauma, Ganga Medical Centre & Hospitals Pvt. Ltd, 313, Mettupalayam Road, Coimbatore, India.
Ganga Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOsteoarthritis of knees with varus deformity is associated with a compensatory valgus deformity of the hindfoot and a lateral loading foot pressure pattern. However, whether this abnormal loading pattern is corrected in total knee arthroplasty (TKA) is unclear.

methodsThe alignment and loading pattern of 91 consecutive patients (121 knees) undergoing TKA with pre-operative varus more than 10° were evaluated prospectively with functional outcome scores, static conventional radiography and dynamic pedobarogaphy pre-operatively and 1-year post-operatively. Outcomes assessed were Oxford Knee Scores, American Orthopaedic Foot and Ankle Scores, femorotibial mechanical angle, tibia-hindfoot angle, hindfoot valgus/varus index (VVI), foot line of pressure (LOP) laterality and peak pressure (PP) at both time points.

resultsOf 121 knees, 98 (81%) regained normal alignment of the knee and 114 (92%) of the hindfoot. Similarly, PP (p < 0.001), VVI (pre-operative: - 0.29 ± 0.22, post-operative: - 0.04 ± 0.23, p < 0.001) and LOP laterality (pre-operative: 7% medial, post-operative: 96% medial, p < 0.001) all medialised post-operatively. All patients had improved functional outcomes at the knee (pre-operative: 20 ± 2, post-operative: 40 ± 2, p < 0.001) and ankle (pre-operative: 59 ± 10, post-operative: 89 ± 6, p < 0.001).

conclusionThe present study shows, following the correction of knee varus with TKA, hindfoot alignment and foot loading pattern are both restored in the majority of patients. TKA offers both static and dynamic correction as seen in the hindfoot and loading pattern, respectively. LEVEL OF EVIDENCE: Level III: prospective case-control study.

Indexed as

Arthroplasty, Replacement, KneeAgedAnkleBiomechanical PhenomenaCase-Control StudiesFemaleFootHumansKnee JointMaleMiddle AgedOsteoarthritis, KneePostoperative PeriodProspective StudiesRadiographyTibiaHindfoot alignmentLoading patternPedobarographyTotal knee arthroplasty

Identifiers

PMID31312876
OpenAlexW2956825602

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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.