Evidence map›Paper›PMID 34342662›Full record

ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2021

Low-dose radiotherapy for painful osteoarthritis of the elderly: A multicenter analysis of 970 patients with 1185 treated sites.

Alexander Rühle, Elisabeth Tkotsch, Rainer Mravlag, Erik Haehl, Simon K B Spohn, Constantinos Zamboglou, Peter E Huber, Jürgen Debus, Anca-Ligia Grosu, Tanja Sprave and 1 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
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  9. Article
  10. Cancer Pain: Radiotherapy as a Double-Edged Sword.International journal of molecular sciences · 2025
    Review
  11. Low-dose Radiation Therapy (LDRT) in Managing Osteoarthritis: A Comprehensive Review.Current therapeutic research, clinical and experimental · 2025
    Review
  12. Review
  13. Low-dose radiotherapy for greater trochanteric pain syndrome-a single-centre analysis.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024
    Article
  14. Low-dose radiotherapy of osteoarthritis: from biological findings to clinical effects-challenges for future studies.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2023
    Review
  15. 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

11 authors at 3 institutions in 1 country.

Alexander RühleDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Elisabeth TkotschDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Rainer MravlagDepartment of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Erik HaehlDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Simon K B SpohnDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Constantinos ZamboglouDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Peter E HuberDepartment of Molecular Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120, Heidelberg, Germany.
Jürgen DebusDepartment of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Anca-Ligia GrosuDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Tanja SpraveDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Nils H NicolayDepartment of Radiation Oncology, University of Freiburg-Medical Center, Robert-Koch-Str. 3, 79106, Freiburg, Germany.ORCID http://orcid.org/0000-0003-2550-1410
University of Freiburg · DEGerman Cancer Research Center · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePainful osteoarthritis is common in elderly patients, and low-dose radiotherapy has been demonstrated to provide effective symptomatic treatment. We examined the analgesic effects of low-dose radiotherapy for osteoarthritis in the elderly aiming to reveal potential differences in the response rates relating to increasing age.

methodsA retrospective analysis was performed at two university hospitals including elderly patients (≥ 65 years) undergoing radiotherapy for osteoarthritis between 2008 and 2020. Pain intensity and response were quantified using the numerical rating scale (NRS) and the Pannewitz score. Age groups were defined for young old (65-74 years), older old (75-84 years), and oldest old patients (≥ 85 years).

resultsIn all, 970 patients with 1185 treated sites and a median age of 76 years were analyzed. Mean NRS was 66 at baseline (t0), 53 after radiotherapy (t1), and 44 at first follow-up (t2) (p < 0.001 for t0-t1, t1-t2, and t0-t2). At t1, 1.5% exhibited a Pannewitz score of 0 (no pain), 58.5% of 1-2 (less pain), 36.1% of 3 (equal pain), and 3.9% of 4 (worse pain), while at t2, pain response shifted towards 6.9% (0), 58.6% (1-2), 28.1% (3), and 6.3% (4). Pain response did not differ between age groups at t1 (p = 0.172) or t2 (p = 0.684). In addition, pain response after re-irradiation (n = 384 sites) was 61.0% and was comparable between age groups (p = 0.535).

conclusionLow-dose radiotherapy results in pain reduction in about two-thirds of treated sites with no difference relating to increasing age, showing that radiotherapy is an effective analgesic treatment for osteoarthritis even at advanced ages.

Indexed as

OsteoarthritisAgedAged, 80 and overFollow-Up StudiesHumansPainPain MeasurementRetrospective StudiesTreatment OutcomeBenign diseasesElderly patientsJoint disorderLow-dose radiotherapyOsteoarthritis

Identifiers

PMID34342662
PMCPMC8458208
OpenAlexW3191882499

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.