Evidence map›Paper›PMID 37218351›Full record

ArticleJournal of Korean medical science2023

Effect of Total Hip Arthroplasty on Ipsilateral Lower Limb Alignment and Knee Joint Space Width: Minimum 5-Year Follow-up.

Yun Seong Choi, Jung-Wee Park, Tae Woo Kim, Kee Soo Kang, Young-Kyun Lee, Kyung-Hoi Koo, Chong Bum Chang

Open access · goldAbstract read
In one paragraph

Article in Journal of Korean medical science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.5field-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

10 citing papers in PubMed, 11 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Yun Seong Choi *Department of Orthopaedic Surgery, Veterans Health Service Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0001-7418-4031
Jung-Wee Park *Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0002-4515-1895
Tae Woo KimDepartment of Orthopedic Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.ORCID https://orcid.org/0000-0003-2731-749X
Kee Soo KangDepartment of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea.ORCID https://orcid.org/0000-0002-4953-8579
Young-Kyun LeeDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0001-6564-4294
Kyung-Hoi KooDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0001-5251-2911
Chong Bum ChangDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0002-8597-1054
Seoul National University · KRSeoul National University Bundang Hospital · KRSeoul National University Hospital · KRVeterans Health Service Medical Center · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to 1) assess the effect of total hip arthroplasty (THA) on coronal limb alignment, namely, the hip-knee-ankle angle (HKA), 2) identify factors that determine changes in the HKA, and 3) determine whether alignment changes influence the knee joint space width.

methodsWe retrospectively evaluated 266 limbs of patients who underwent THA. Three types of prostheses with neck shaft angles (NSAs) of 132°, 135°, and 138° were used. Several radiographic parameters were measured in the preoperative and final radiographs (at least 5 years after THA). A paired

resultsThe preoperative mean HKA was 1.4° varus and increased to 2.7° varus after THA. This change was related to changes in the NSA, lateral distal femoral angle, and femoral bowing angle. In particular, in the group with a decrease in NSA of > 5°, the preoperative mean HKA was largely changed from 1.4° varus to 4.6° varus after THA. The prostheses with NSA of 132° and 135° also led to greater varus HKA changes than those with an NSA of 138°. Narrowing of the medial knee joint space was related to changes in the varus direction of the HKA, decrease in NSA, increase in femoral offset.

conclusionA large reduction in NSA can lead to considerable varus limb alignment after THA, which can have adverse effects on the medial compartment of the ipsilateral knee.

Indexed as

Arthroplasty, Replacement, HipOsteoarthritis, KneeFollow-Up StudiesHumansKnee JointLower ExtremityRetrospective StudiesTibiaHip–Knee–Ankle AngleKnee OsteoarthritisNeck Shaft AngleTotal Hip Arthroplasty

Identifiers

PMID37218351
PMCPMC10202619
OpenAlexW4366493102

What OpenQuestion holds

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LicenceCC BY-NC
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.