Evidence map›Paper›PMID 29754187›Full record

ArticleInternational orthopaedics2018

Nationwide multicenter follow-up cohort study of hip arthroplasties performed for osteonecrosis of the femoral head.

Seneki Kobayashi, Toshikazu Kubo, Yukihide Iwamoto, Wakaba Fukushima, Nobuhiko Sugano

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Long-term results of hemi-resurfacing and metal-on-metal hip resurfacing for osteonecrosis of the femoral head.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Observational
  12. Article
  13. Article
  14. [Treatment of osteonecrosis of the femoral head with vascularized bone grafting].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 3 institutions in 1 country.

Seneki KobayashiThe Japanese Investigation Committee on Osteonecrosis of the Femoral Head under the Ministry of Health, Labour and Welfare of Japan, Chiyoda, Tokyo, Japan.
Toshikazu KuboThe Japanese Investigation Committee on Osteonecrosis of the Femoral Head under the Ministry of Health, Labour and Welfare of Japan, Chiyoda, Tokyo, Japan.
Yukihide IwamotoThe Japanese Investigation Committee on Osteonecrosis of the Femoral Head under the Ministry of Health, Labour and Welfare of Japan, Chiyoda, Tokyo, Japan.
Wakaba FukushimaThe Japanese Investigation Committee on Osteonecrosis of the Femoral Head under the Ministry of Health, Labour and Welfare of Japan, Chiyoda, Tokyo, Japan.
Nobuhiko SuganoThe Japanese Investigation Committee on Osteonecrosis of the Femoral Head under the Ministry of Health, Labour and Welfare of Japan, Chiyoda, Tokyo, Japan. n-sugano@umin.net.
Ministry of Health Labour and Welfare · JPKyushu University · JPSuwa Red Cross Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo identify modifiable factors related to post-operative dislocation and reoperation in patients with osteonecrosis of the femoral head (ONFH) in a large cohort.

methodsWe studied 4995 hip arthroplasties: total hip arthroplasty (THA) was performed in 79% of patients; bipolar hemiarthroplasty (BP), 17%; total resurfacing arthroplasty (tRS), 3%; and hemi-resurfacing arthroplasty (hRS), 1%. A new type of BP (accounting for 49% of BPs) comprised a femoral component with a polished or smooth, small-diameter (approximately 10 mm) neck with a round or oval axial cut surface and no sharp corners.

resultsThe infection rate was relatively low (0.56%) even though 58% of cases of ONFH were associated with systemic steroid use, a known risk factor for infection. Post-operative dislocation occurred in 4.3% of cases, with re-operation needed in 3.9%. The dislocation rate was related to surgery type: 5.2% in THA, 0.9% in BP, and 0% in tRS and hRS. Among total arthroplasties with six month or longer follow-up (3670 THAs and 159 tRSs), the risk factors for post-operative dislocation were younger (≤ 40 years) or older (≥ 62 years) age, higher body weight, posterolateral approach, and smaller prosthetic head diameter. Regarding the need for re-operation, higher body weight and surgery type were identified as risk factors.

conclusionsThe relatively high dislocation rate of 5.2% in THA is a cause for concern. The identified risk factors for dislocation should be considered when selecting THA for treatment. Prosthesis survivorship in hRSs was inferior to that in BPs or THAs. Body weight also affected the survivorship of hip arthroplasties.

Indexed as

AdolescentAdultAgedAged, 80 and overArthroplasty, Replacement, HipCohort StudiesFemaleFemur Head NecrosisFollow-Up StudiesHip JointHip ProsthesisHumansJoint DislocationsMaleMiddle AgedPostoperative ComplicationsBipolar hemiarthroplastyDislocationHip arthroplastyOsteonecrosis of the femoral headResurfacing

Identifiers

PMID29754187
OpenAlexW2801374057

What OpenQuestion holds

Textmetadata
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.