Evidence map›Paper›PMID 34664419›Full record

ArticleOrthopaedic surgery2021

Portal Setup: the Key Point in the Learning Curve for Hip Arthroscopy Technique.

Li Haipeng, Li Ji, Zhu Juanli, Shi Lijun, Liu Yujie, Li Zhongli, Wang Zhigang, Kong Lu, Li Chunbao

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Cumulative surgeon volume is associated with improved outcomes following hip arthroscopy: A national registry study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. A three-dimensional (3D) printed simulator as a feasible assessment tool for evaluating hip arthroscopy skills.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  8. 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

9 authors at 1 institution in 1 country.

Li HaipengDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Li JiDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Zhu JuanliDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Shi LijunDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Liu YujieDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Li ZhongliDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Wang ZhigangDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Kong LuDepartment of Health Services, Chinese PLA General Hospital, Beijing, China.
Li ChunbaoDepartment of Orthopedics, The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.
Chinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo analyze the learning curve experience of hip arthroscopy based on patient demographics, surgical time, portal setup time, and postoperative complications and to find the key point in the learning curve.

methodsFrom May 2016 to February 2019, a prospective study on the learning curve experience of hip arthroscopy was performed in our hospital. We evaluated the first 50 consecutive hip arthroscopy procedures performed by a single surgeon. There were nine females and 41 males with a mean age of 30.8 years. We divide the patients into early group and late group according to the date of their operation, with each group including 25 patients. Data on patient demographics, types of procedure, surgical time, portal setup time, and postoperative complications were collected. Functional scores were assessed with the modified Harris Hip Score (mHHS).

resultsPatients were followed up for 16.4 months on average (range, 13-27 months). The early group of patients had a mean age of 35.2 years and the late group a mean age of 26.5 years. The most common procedures performed for the early group were debridement (17 patients, 68%), and in the late group, most patients underwent labral repair (18 patients, 72%). Mean total surgical time was 168 min for the early group and 143 min for the late group, and there was no statistically significant difference between two groups. The portal setup time in the early group and late group was 40.2 ± 12.4 min and 18.5 ± 6.2 min, respectively (P < 0.001), and the portal setup time was significantly longer in the early group. Further analysis of the learning curve of portal setup showed that the average portal setup time was not statistically significant changed after 30 cases. There were six complications including iatrogenic cartilage injury and iatrogenic labrum injury in the early group and five complications including perineal crush injury and nerve stretch injury in the late group. The functional score of patients in the late group was significantly higher than that in the early group during follow-up.

conclusionThe steep learning curve of hip arthroscopy is mainly caused by the challenge of portal setup and portalrelated complications were more common in the early group than in the late group. Surgical time is not an effective indicator for evaluating progress on the learning curve of hip arthroscopy.

Indexed as

Clinical CompetenceLearning CurveAdolescentAdultAgedArthroscopyFemaleHip InjuriesHumansMaleMiddle AgedOperative TimePatient Reported Outcome MeasuresPostoperative ComplicationsProspective StudiesTime FactorsArthroscopyHipLearning CurvePortal Setup

Identifiers

PMID34664419
PMCPMC8523757
OpenAlexW3207053636

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.