PONE-D-24-08481Specific pelvic shape in patients with developmental dysplasia of the hip on 3D morphometric homologous model analysisPLOS ONE

Dear Dr. Suzuki,

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"Dr. Toda Hajime (Sapporo Medical University, Department of Health Sciences) created a conceptual diagram of the homology model in Figure 1. Mr. Toyohisa Tanijiri (Medic Engineering，Kyoto, Japan) developed the software (HBM-Rugle) necessary for homologous model analysis and added several functions according to our requests. He also provided me with the knowledge and information necessary for analysis.

 This study was supported by JSPS KAKENHI (Grant Number 21K11269)."

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Reviewer #1: Yes

Reviewer #2: Partly

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Thank you for your effort on the study.

The article generally well-written and I think the reader will find it interesting to read.

The introduction section please state the aim of your study.

The methods and the results section is well-written but please add comparative data like Sharp angle, sacral slope and other measurements between normal and DDH group.

In discussion section, at first paragraph please remove "Although morphological analysis using a homologous model assumes that all vertices comprising the pelvis are homologous, it is an objective method that uses all morphological information. This method has recently been used to evaluate foot form, cranial morphology, facial aging changes, and pelvis sex determination, and it is attracting attention as a new comparison method for 3D models [15, 19, 21, 24]" and move to next or further paragraph.

In the first paragraph clearly state the most important findings of your study.

Reviewer #2: I would like to thank the authors for their efforts and valuable contributions.

In the title of the article, it is stated that specific pelvic shapes in patients with developmental hip dysplasia were examined by model analysis. However, it is stated that all DDH patients used in the modeling underwent rotational osteotomy surgery. In fact, these patients should be stated as DDH patients who underwent surgery. The age range of this patient group is given as 21-52 years. It should be stated at what age the patients had surgery and how long after the surgery the modeling was done.

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Reviewer #1: No

Reviewer #2: Yes: Dr. Murat Çakar

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Specific pelvic shape in patients with developmental dysplasia of the hip on 3D morphometric homologous model analysis

PONE-D-24-08481R1

Dear Dr. Suzuki,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

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Kind regards,

Barry Kweh

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

The authors have submitted a well written manuscript and addressed the reviewers comments.