Evidence map›Paper›PMID 41172678›Full record

ArticleInternational dental journal2026

Musculoskeletal Analysis after Internal Fixation of Condylar Fracture: A Retrospective Study.

Lingtong Bu, Yuxin Zhang, Guanlin Qu, Xiang Wei, Zixiang Han, Qingyu Xu, Dongmei He, Minjie Chen, Jisi Zheng, Chi Yang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International dental journal, 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

10 authors.

Lingtong BuDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Yuxin ZhangDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Guanlin QuDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Xiang WeiDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Zixiang HanDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Qingyu XuDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Dongmei HeDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Minjie ChenDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Jisi ZhengDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China. Electronic address: 237111641@qq.com.
Chi YangDepartment of Oral Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China. Electronic address: yang_chi63@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate musculoskeletal modification after open reduction and internal fixation of condylar fracture by clinical examinations and computed tomography reconstruction to guide the clinical therapeutic strategy. MATERIALS AND

methodsThis retrospective study enrolled patients with condylar fracture treated by open reduction of internal fixation (ORIF) between November 2015 and January 2020 and followed up for over 2 years. Mouth opening, mandible deviation and occlusal relationship were compared before ORIF and 2 years after ORIF. Condyle volume, ramus height, masseter volume and lateral pterygoid volume immediately and 2 years after ORIF were reconstructed and compared among different fracture types (including condylar head, neck and base fractures), fixation types (including screws and plates) and implanted material removal or not using statistical analysis. This retrospective study was subject to inherent limitations, including possible selection bias and lack of standardised imaging protocols. All retrospective data usage complied with institutional ethical approval.

resultsThe study involved 105 patients with unilateral condylar fractures. Condylar head fractures accounted for 53% of the total, condylar neck fractures for 24% and condylar base fractures for 23%. The average mouth opening increased from 1.4 ± 0.8 cm to 3.8 ± 0.7 cm following the procedure. Mandible deviation decreased from 39.3% to 6.2%. Abnormal occlusal relationships decreased from 84% to none. As the fracture line moved up to the condylar top, more condylar bone resorption and masticatory muscle atrophy tended to occur. Screw fixation showed significant condylar bone resorption compared to plate fixation. The retention of the implanted material showed a significant negative influence on ramus height and condyle volume while removal of the implanted material significantly led to masticatory muscle atrophy.

conclusionsThe musculoskeletal modification after ORIF of a condylar fracture is closely related to fracture type, fixation types and implanted material removal. Surgeons should be aware of these trends and choose therapies accordingly. CLINICAL RELEVANCE: This study revealed that prolonged retention of implanted materials is associated with long-term bone resorption, whereas a second surgery may lead to masticatory muscle atrophy, which provides insight into non-removable implanted materials with mechanical properties closer to human bone.

Indexed as

Fracture Fixation, InternalMandibular CondyleMandibular FracturesAdolescentAdultAgedFemaleHumansMaleMiddle AgedOpen Fracture ReductionRetrospective StudiesTomography, X-Ray ComputedYoung AdultFracture fixationMandibular condyleMandibular reconstructionMasseter muscleMusculoskeletal abnormalitiesPterygoid muscles

Identifiers

PMID41172678
PMCPMC12615745

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.