Evidence map›Paper›PMID 25840887›Full record

ArticleArchives of orthopaedic and trauma surgery2015

Fracture reduction with positive medial cortical support: a key element in stability reconstruction for the unstable pertrochanteric hip fractures.

Shi-Min Chang, Ying-Qi Zhang, Zhuo Ma, Qing Li, Jens Dargel, Peer Eysel

2 registry-linked trialsOpen access · hybridAbstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 159 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
159citing papers in PubMed, 1 pooled it
6.8field-weighted citation impact, top 3% 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.

NCT03911180 naunknown statusnot on this mapstarted 2019, after this paper: background citation

Pertrochanteric Fracture Fixation In Elderly Adults Using Proximal Femoral Nail Anti-rotation (HERACLES) With a T-shaped Parallel Blade: A New Design

TypeinterventionalSponsorIlocos Training and Regional Medical CenterRan2019 to 2022Enrolled40ConditionsPertrochanteric Fracture, Intertrochanteric Fractures, Pertrochanteric Fracture of Femur, Closed, Pertrochanteric Fracture of Femur, OpenArmsProximal femoral nail with straight parallel blade
NCT07738458 narecruitingnot on this mapstarted 2026, after this paper: background citation

Robot-Assisted Closed Reduction and Internal Fixation for Intertrochanteric Femoral Fractures: A Randomized Controlled Trial

TypeinterventionalSponsorBeijing Jishuitan HospitalRan2026 to 2028Enrolled60ConditionsIntertrochanteric Fractures, Intertrochanteric Fractures of the Hip, Intertrochanteric Fractures of the FemurArmsRobot-assisted closed reduction and internal fixation, Conventional manual closed reduction and internal fixation
3 · Its place in the literature

Who cites it

159 citing papers in PubMed, 1 synthesis or guideline pooled it, 253 citations in OpenAlex.

  1. Rehabilitation protocols in unstable trochanteric fractures treated with cephalomedullary nails in elderly: current practices and outcome.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2020
    Pooled it
  2. Trial
  3. [Application of precise-guided temporary fixation assistive devices in proximal femoral nail antirotation fixation for femoral intertrochanteric fractures].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025
    Trial
  4. Trial
  5. [Feasibility study of Kirschner wire-fixation-cortical bone technique in treatment of intertrochanteric fracture].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2019
    Trial
  6. Article
  7. Article
  8. Article
  9. Review
  10. Observational
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. [Positive cortical support reduction in treatment of trochanteric femur fractures: history in theory establishment and its inspiration for clinical innovations].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  19. Evaluating polymethylmethacrylate (PMMA) augmentation in cephalomedullary nail fixation of hip fractures: a step towards evidence-based patient selection criteria.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
    Article
  20. Anteromedial cortical support in intertrochanteric fractures: radiographic and clinical validation in a Latin American cohort.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Article

99 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 2 countries.

Shi-Min ChangThe Department of Orthopaedic Surgery, Yangpu Hospital, Tongji University School of Medicine, 450 Tengyue Road, Shanghai, 200090, People's Republic of China, shiminchang11@aliyun.cn.
Ying-Qi Zhang
Zhuo Ma
Qing Li
Jens Dargel
Peer Eysel
Yangpu Hospital of Tongji University · CNUniversity Hospital Cologne · DETongji University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo introduce the concept of fracture reduction with positive medial cortical support and its clinical and radiological correlation in geriatric unstable pertrochanteric fractures.

methodsA retrospective analysis of 127 patients (32 men and 95 women, with mean age 78.7 years) with AO/OTA 31A2.2 and 2.3 hip fractures treated with cephalomedullary nail (PFNA-II or Gamma-3) between July 2010 and June 2013 was performed. They were classified into three groups according the grade of medial cortical support in postoperative fracture reduction (positive, neutral, and negative). The positive cortex support was defined that the medial cortex of the head-neck fragment displaced and located a little bit superomedially to the medial cortex of the shaft. If the neck cortex is located laterally to the shaft, it is negative with no cortical buttress, and if the two cortices contact smoothly, it is in neutral position. The demographic baseline, postoperative radiographic femoral neck-shaft angle and neck length, rehabilitation progress and functional recovery scores of each group were recorded and compared.

resultsThere were 89 cases (70 %) in positive, 26 in neutral, and 12 in negative support. No statistical differences were found between the three groups among patient age, sex ratio, prefracture score of activity of daily living, walking ability score, ASA physical risk score, number of medical comorbidities, osteoporosis Singh index, fracture reduction quality (Garden alignments), and the position of lag screw or helical blade in femoral head (TAD). In follow-up, patients in positive medial cortical support reduction group had the least loss in neck-shaft angle and neck length, and got ground-walking much earlier than negative reduction group, with good functional outcomes and less hip-thigh pain presence.

conclusionFracture reduction with nonanatomic positive medial cortical support allows limited sliding of the head-neck fragment to contact with the femur shaft and achieve secondary stability, providing a good mechanical environment for fracture healing.

Indexed as

Bone NailsBone ScrewsAgedAged, 80 and overFemaleFracture Fixation, InternalFracture HealingHip FracturesHip JointHumansMaleRadiographyRange of Motion, ArticularRecovery of FunctionRetrospective StudiesWalking

Identifiers

PMID25840887
PMCPMC4436685
OpenAlexW2079198295

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.