Evidence map›Paper›PMID 30628029›Full record

ArticleMusculoskeletal surgery2019

Recovery of knee range of motion after total knee arthroplasty in the first postoperative weeks: poor recovery can be detected early.

A Kornuijt, G J L de Kort, D Das, A F Lenssen, W van der Weegen

Abstract read
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In one paragraph

Article in Musculoskeletal surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

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

  1. Pooled it
  2. Trial
  3. Efficacy of Active Exercises to Improve Range of Motion in Knee Joint After Total Knee Arthroplasty. A Randomized Controlled Trial.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
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  15. Effect of patellar resurfacing surgery on bleeding in total knee arthroplasty.Revista da Associacao Medica Brasileira (1992) · 2022
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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

5 authors.

A KornuijtDepartment of Physiotherapy, St. Anna Hospital, Bogardeind 2, 5664 EH, Geldrop, The Netherlands. A.Kornuijt@st-anna.nl.ORCID http://orcid.org/0000-0003-3957-4979
G J L de KortDepartment of Orthopedic Surgery, St. Anna Hospital, Bogardeind 2, 5664 EH, Geldrop, The Netherlands.
D DasDepartment of Orthopedic Surgery, St. Anna Hospital, Bogardeind 2, 5664 EH, Geldrop, The Netherlands.
A F LenssenDepartment of Physiotherapy, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
W van der WeegenDepartment of Orthopedic Surgery, St. Anna Hospital, Bogardeind 2, 5664 EH, Geldrop, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to analyze in detail how knee flexion and extension progress in the first 8 weeks after primary total knee arthroplasty (TKA). The secondary goal was to compare knee range of motion (ROM) recovery patterns between patients with normal and delayed ROM recovery 8 weeks after TKA.

methodsThis prospective clinical trial included all patients who underwent a primary unilateral TKA between February and December 2016 with weekly ROM data documented by the treating outpatient physical therapists (n = 137). Goniometry was used to measure knee ROM preoperatively, postoperatively on day 1 and weekly until follow-up at the orthopedic clinic 8 weeks after surgery. ROM recovery patterns were compared between patients with sufficient (≥ 90°) or insufficient (< 90°) knee flexion 8 weeks after TKA.

resultsKnee flexion recovered from a median of 80° in the first postoperative week to 110° 8 weeks after surgery and knee extension from a mean of - 10.7° to - 3.2°. Recovery was nonlinear, with greatest improvements in the first 4 weeks for knee flexion. In contrast to patients with sufficient knee flexion 8 weeks postoperatively, the insufficient group (n = 8, 5.8%) had poor knee flexion on the first postoperative day and from week 4 to week 8 almost no improvement or even worsening of knee flexion.

conclusionsBoth knee flexion and extension recover in a nonlinear manner after TKA surgery. Poor postoperative knee function can be detected early, using ROM data from the first postoperative day up to the fourth week.

Indexed as

Arthroplasty, Replacement, KneeRecovery of FunctionAgedAged, 80 and overFemaleHumansMaleMiddle AgedPostoperative ComplicationsPostoperative PeriodProspective StudiesRange of Motion, ArticularSensitivity and SpecificityTime FactorsEarly postoperativeRange of motionRecovery patternsTotal knee arthroplasty

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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.