Evidence map›Paper›PMID 31462246›Full record

ArticleJournal of orthopaedic surgery and research2019

The proper correction of the mechanical axis in high tibial osteotomy with concomitant cartilage procedures-a retrospective comparative study.

Myung Ku Kim, Bong Sung Ko, Joo Hyun Park

Abstract readComparative Study
In one paragraph

Article in Journal of orthopaedic surgery and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  5. Five-year outcomes of medial open-wedge high tibial osteotomy with lateral supplemental lag screw in patients with obesity.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
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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

3 authors.

Myung Ku KimDepartment of Orthopedic Surgery, College of Medicine, Inha University Hospital, 7-206, 3-Ga Sinheung-dong, Jung-gu, Incheon, 400-711, Republic of Korea.
Bong Sung KoDepartment of Orthopedic Surgery, College of Medicine, Inha University Hospital, 7-206, 3-Ga Sinheung-dong, Jung-gu, Incheon, 400-711, Republic of Korea.
Joo Hyun ParkDepartment of Orthopedic Surgery, College of Medicine, Inha University Hospital, 7-206, 3-Ga Sinheung-dong, Jung-gu, Incheon, 400-711, Republic of Korea. pparkjoo@naver.com.ORCID http://orcid.org/0000-0002-9450-2807

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe guidelines to correct the mechanical axis in high tibial osteotomy (HTO) have changed recently, and some studies have suggested that the correction of the mechanical axis should be based on the severity of cartilage defect. The purpose of this study was (1) to evaluate the radiographic and clinical outcomes of HTO with concomitant cartilage procedures and (2) to compare our method with conventional method regarding the mechanical axis correction.

methodsSixty-six knees which underwent opening wedge HTO with cartilage procedures were evaluated retrospectively. The mean age was 56.0 ± 8.3 years, and the average follow-up period was 35.9 ± 22.0 months (range, 24-93 months) with a minimum follow-up of 2 years. All patients were divided into two groups regarding the method of mechanical axis correction; the postoperative mechanical axis was shifted to 50-55% of the tibial plateau width in group I (n = 46) and to 62-66% according to the conventional method in group II (n = 20). Concomitant cartilage procedures were performed, and each technique of those was determined according to the cartilage status.

resultsThe functional scores and visual analog scale for pain in all patients showed a significant improvement at the final follow-up, but there was no significant difference between two groups. The postoperative mechanical axis was the valgus axis of 0.7° in group I with average mechanical axis deviation (MAD) of 51.7%, whereas the valgus axis of 4.2° in group II with average MAD of 64.0%. In patients who underwent second-look arthroscopy, the cartilaginous regeneration could be obtained by cartilage procedures.

conclusionIn HTO with concomitant cartilage procedures, the method to correct postoperative mechanical axis to the neutral or valgus axis less than 3° could be an effective and safe method to obtain reliable clinical outcomes without complications. Therefore, our method can be used as a selective technique to prevent complications related to the postoperative valgus alignment in patients who are needed much correction angle due to the preoperative severe varus alignment. STUDY

designRetrospective comparative study, level III.

Indexed as

AdultFemaleFollow-Up StudiesHumansMaleMiddle AgedOsteotomyRetrospective StudiesTibiaCartilage proceduresHigh tibial osteotomy (HTO)Mechanical axisMechanical axis deviation

Identifiers

PMID31462246
PMCPMC6714077

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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.