Evidence map›Paper›PMID 34823312›Full record

ArticleClinics in shoulder and elbow2021

Comparison of the effectiveness of extensor muscle strengthening exercise by itself, exercise with polydeoxyribonucleotide injection, and exercise with extracorporeal shockwave therapy in lateral epicondylitis: a randomized controlled trial.

Bum Jin Shim, Eun-Min Seo, Jung-Taek Hwang, Do-Young Kim, Jae-Shin Yang, Su-Jung Seo, Myung Sun Hong

Registry-linked trialAbstract read
In one paragraph

Article in Clinics in shoulder and elbow, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06055491 (Effect of Vitamin D3 Combined With Extensor Muscle Strengthening Exercise in Lateral Epicondylitis of Elbow), which is not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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.

NCT06055491 naunknown statusnot on this mapstarted 2023, after this paper: background citation

Effect of Vitamin D3 Combined With Extensor Muscle Strengthening Exercise in Lateral Epicondylitis of Elbow: a Randomized Controlled Trial

TypeinterventionalSponsorChuncheon Sacred Heart HospitalRan2023 to 2026Enrolled100ConditionsLateral Epicondylitis of ElbowArmsVitamin D3 or Saline injection at ipsilateral deltoid muscle
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review of Preclinical and Clinical Studies Supporting the Role of Polydeoxyribonucleotide in the Treatment of Tendon Disorders.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Differential Diagnosis of Elbow Pain.Ewha medical journal · 2023
    Review
  14. 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

7 authors.

Bum Jin ShimDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Eun-Min SeoDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Jung-Taek HwangDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Do-Young KimDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Jae-Shin YangDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Su-Jung SeoDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.
Myung Sun HongDepartment of Radiology, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExtensor muscle strengthening exercises with counterforce braces (EX) is a conventional conservative treatment for lateral epicondylitis (LE) of the elbow. In addition, polydeoxyribonucleotide (PDRN) or extracorporeal shockwave therapy (ESWT) has been recently used for LE.

methodsSixty-three patients with chronic LE participated in this study and randomly allocated in three groups (G1: EX, G2: EX+PDRN injection, and G3: EX+ESWT). All of the three groups were taught to perform EX at the first out-patient department (OPD) visit. Group 2 was injected with 3 mL PDRN (5.625 mg/3 mL), while group 3 received ESWT at the first OPD visit. Visual analog scale pain score, Mayo elbow performance score (MEPS), and ultrasonographic examination were checked before, 6 weeks, and 12 weeks after the treatments.

resultsOverall functional scores and ultrasonographic findings in all three groups improved after treatment. The mean MEPS in group 2 improved more than groups 1 and 3 at 6 weeks (G1, 56.9>62.4; G2, 54.3>65.0; G3, 55.7>62.6), and more than group 1 at 12 weeks (G1, 56.9>67.9; G2, 54.3>73.6). The mean common extensor tendon depth (CETD) on ultrasonography in group 2 increased more than groups 1 and 3 at 6 and 12 weeks (6 weeks: G1, 0.385>0.386; G2, 0.332>0.392; G3, 0.334>0.357; 12 weeks: G1, 0.385>0.409; G2, 0.332>0.438; G3, 0.334>0.405 [cm]).

conclusionsPDRN injections combined with EX exhibited a greater improvement in mean MEPS and mean CETD compared to EX only or EX combined with ESWT for LE within the 12 weeks follow-up.

Indexed as

Counterforce braceExtensor muscle strengthening exerciseExtracorporeal shockwave therapyLateral epicondylitisPolydeoxyribonucleotide

Identifiers

PMID34823312
PMCPMC8651591

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Registered trials

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.