Evidence map›Paper›PMID 35236437›Full record

ArticleArthroplasty (London, England)2021

Does total hip arthroplasty via the direct anterior approach using dual mobility increase leg length discrepancy compared with single mobility?

Seiya Ishii, Yasuhiro Homma, Tomonori Baba, Yuta Jinnai, Xu Zhuang, Hiroki Tanabe, Sammy Banno, Mikio Matsumoto, Taiji Watari, Yu Ozaki and 2 more

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Arthroplasty (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
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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

12 authors at 1 institution in 1 country.

Seiya IshiiDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Yasuhiro HommaDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. yhomma@juntendo.ac.jp.ORCID http://orcid.org/0000-0002-7891-3024
Tomonori BabaDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Yuta JinnaiDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Xu ZhuangDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Hiroki TanabeDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Sammy BannoDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Mikio MatsumotoDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Taiji WatariDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Yu OzakiDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Hironori OchiDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Kazuo KanekoDepartment of Orthopaedic Surgery, Juntendo University, 1-1-2, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Juntendo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTotal hip arthroplasty (THA) via the direct anterior approach (DAA) using dual mobility cup (DMC) is considered to effectively prevent postoperative dislocation. However, the dislocation and reduction procedure using a trial implant during the surgery is difficult because of high soft tissue tension. Thereby, leg length discrepancy (LLD) is difficult to assess when using DM via the DAA. PURPOSE: To compare the LLD between cases using conventional SM and those using DMC in THA via the DAA with fluoroscopy. PATIENTS AND

methodsWe retrospectively investigated 34 hips treated with DMC (DMC-DAA group) and 31 hips treated with SM (SM-DAA group). The LLD was defined as the difference in the distance from the teardrop to the medial-most point of the lesser trochanter between the operative and nonoperative sides at immediate postoperative X-ray.

resultsThe mean LLD in the DMC-DAA group and SM-DAA group was 0.68 ± 7.7 mm and 0.80 ± 5.5, respectively, with no significant difference. The absolute value of the LLD in the DMC-DAA group and SM-DAA group was 6.3 ± 4.4 mm and 5.9 ± 5.5, respectively, with no significant difference.

conclusionDespite the difficulty in assessment of the LLD during THA via the DAA using DMC, this technique does not increase the LLD compared with the use of SM. LEVEL OF EVIDENCE: III, matched case-control study.

Indexed as

Direct anterior approachDual mobility cupLeg length discrepancy

Identifiers

PMID35236437
PMCPMC8796478
OpenAlexW3164853180

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.