Evidence map›Paper›PMID 42469928›Full record

Trial reportOrthopaedic surgery2026

Effect of Chewing Gum on Bowel Function Recovery in Elderly Patients Following Posterior Lumbar Fusion Surgery: A Randomized Controlled Trial.

Fuze Liu, Yifei Li, Gaoyang Li, Xiaoyan He, Lin Zhang, Meijia Zhang, Tian Liu, Ying Jiang, Qinlu Wang, Yaping Chen and 1 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Orthopaedic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Fuze LiuDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Yifei LiDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Gaoyang LiDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Xiaoyan HeDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Lin ZhangDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Meijia ZhangDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Tian LiuDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.ORCID https://orcid.org/0000-0003-1793-227X
Ying JiangDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Qinlu WangDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.ORCID https://orcid.org/0009-0007-1280-7847
Yaping ChenDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Hai WangDepartment of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.ORCID https://orcid.org/0000-0003-1453-855X

Funding

Peking Union Medical College Hospital Talent Cultivation Program (Category C) UBJ10025
6 · The paper itself

Abstract

objectiveGiven the paucity of prospective randomized evidence on chewing gum for postoperative bowel recovery in elderly spinal fusion patients, this study aimed to assess the efficacy of chewing gum in improving bowel function recovery in the elderly after posterior lumbar fusion surgery.

methodsThis study enrolled 119 elderly patients following posterior spinal fusion surgery between September 2023 and May 2025, and they were randomly assigned to either group 1 (chewing gum) or group 2 (control). The time for the first fluid intake, first oral intake, first sitting up, first bowel sounds, first flatus, and first defecation was recorded as outcome measures. Besides, the anesthesia usage controlled by patients after surgery, abdominal pain, distension, surgical wound pain, nausea, and abdominal girth were assessed and recorded at 24, 48, 72 h after surgery. Statistical analyses were performed using independent t-test, Mann-Whitney U test, Chi-square test, or Fisher's exact test, as appropriate.

resultThere are no significant differences observed between the chewing gum and control groups in patient-controlled anesthesia usage, abdominal pain scores, distension scores, surgical wound pain scores, nausea scores, or abdominal girth (p > 0.05). Similarly, postoperative recovery parameters, including time to first fluid intake, oral intake, sitting up, first bowel sounds, first flatus, and first defecation, showed no statistically significant differences (p > 0.05).

conclusionIn this single-center randomized controlled trial, chewing gum did not show a statistically significant effect on early postoperative bowel function recovery in elderly patients undergoing posterior lumbar fusion surgery.

Indexed as

Chewing GumLumbar VertebraeRecovery of FunctionSpinal FusionAgedAged, 80 and overDefecationFemaleHumansMaleProspective StudiesChewing Gumbowel functionchewing gumelderlyspinal surgery

Identifiers

PMID42469928
PMCPMC13398453

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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.