Evidence map›Paper›PMID 29654406›Full record

ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2018

Knee strength, power and stair performance of the elderly 5 years after unicompartmental knee arthroplasty.

Yumeng Li, Rumit S Kakar, Yang-Chieh Fu, Ormonde M Mahoney, Tracy L Kinsey, Kathy J Simpson

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Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. What effect does preoperative flexion contracture have on the component angles in unicompartmental knee arthroplasty?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Article
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  5. Article
  6. 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

6 authors.

Yumeng LiDepartment of Kinesiology, California State University, Chico, 400 West 1st St., Chico, CA, USA. yli41@csuchico.edu.
Rumit S KakarDepartment of Physical Therapy, Ithaca College, 953 Danby Rd, Ithaca, NY, USA.
Yang-Chieh FuInstitute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.
Ormonde M MahoneyAthens Orthopedic Clinic, Athens, USA.
Tracy L KinseyAthens Orthopedic Clinic, Athens, USA.
Kathy J SimpsonDepartment of Kinesiology, University of Georgia, 330 River Rd, Athens, GA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnicompartmental knee arthroplasty (UKA) has been shown to demonstrate some satisfactory short-term outcomes. However, to our knowledge, there have been no reports on midterm or long-term knee extensor strength and leg extensor power post-UKA.

aimsTherefore, the purposes of this study were: (1) to assess the isokinetic knee extensor strength, leg extensor power and stair performance of elderly participants at 5 years UKA post-operation; (2) to compare the differences in knee extensor strength and leg extensor power between the UKA and contralateral healthy limbs.

methodsNineteen elderly participants (75 ± 5 years) who had a medial or a lateral compartment UKA at 5 years post-operation were recruited. The isokinetic knee extensor strength and leg extensor power were measured. The stair performance was tested on a 4-step stair, and ascent and descent velocities were calculated. The pain level was assessed.

resultsThe UKA limbs' knee extensor strength and leg extensor power were 1.01 ± 0.39 Nm/kg and 0.98 ± 0.27 W/kg, respectively. The stair ascent and descent velocities were 0.37 ± 0.07 and 0.38 ± 0.11 m/s, respectively. In addition, the UKA limbs exhibited comparable knee strength and leg power relative to the contralateral limbs. DISCUSSION: In general, the knee extensor strength and leg extensor power exhibited by the UKA limbs at 5 years post-operation may be typical in comparison with the normative data.

conclusionsWe suggest that UKA is a satisfactory treatment in regard to the recovery of knee strength, leg power and ability to climb up and down stairs.

Indexed as

Arthroplasty, Replacement, KneeMuscle StrengthStair ClimbingAgedAged, 80 and overFemaleFollow-Up StudiesHumansKneeKnee JointMaleOsteoarthritis, KneeRange of Motion, ArticularRecovery of FunctionTreatment OutcomeFunctional performanceKnee extension torqueKnee replacementOsteoarthritis

Identifiers

PMID29654406

What OpenQuestion holds

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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.