Evidence map›Paper›PMID 39971715›Full record

ArticleOrthopaedic surgery2025

The 3D-Printed Customized Femoral Short Stem Offers Improved Anatomical Parameters Restoration, Fitness and Biomechanical Performance Compared With Traditional Femoral Stem.

Ziang Jiang, Rongshan Cheng, Dimitris Dimitriou, Yangyang Yang, Tsung-Yuan Tsai, Liao Wang

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Orthopaedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Ziang JiangOrthopaedics Department, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.ORCID https://orcid.org/0000-0002-6071-1301
Rongshan ChengOrthopaedics Department, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.ORCID https://orcid.org/0000-0002-3684-610X
Dimitris DimitriouDepartment of Orthopedics, University Hospital Balgrist, Zürich, Switzerland.
Yangyang YangOrthopaedics Department, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Tsung-Yuan TsaiOrthopaedics Department, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Liao WangOrthopaedics Department, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.ORCID https://orcid.org/0000-0002-4198-9084

Funding

National Natural Science Foundation of China 31972924National Natural Science Foundation of China 81772425Pudong Science Technology and Economy Commission 210H1147900Science and Technology Commission of Shanghai Municipality 21DZ2208200Science and Technology Commission of Shanghai Municipality 22S31906000Shanghai Jiao Tong University "New Young Teachers Startup Plan" 23X010501995
6 · The paper itself

Abstract

objectiveThe traditional femoral stem is unsuitable for patients with severe proximal femoral bone defects or deformities. However, 3D-printed customized designs offer improved proximal femoral canal contact and enhance the initial stability of the femoral prosthesis. Therefore, this study aims to compare the anatomical parameters, contact parameters, and performance of the 3D-printed customized femoral short (CFS) stem with those of the traditional femoral stem following total hip arthroplasty (THA).

methodsAn in vitro study simulating THA was performed using artificial femur models, with a 3D-printed CFS stem as the experimental group and a Trilock stem as the control group. Anatomical parameters, fitness, filling, micro-motion, and strain distribution were evaluated using artificial femoral models. Micro-motion and strain were recorded under different simulated bodyweight loading using a 3D digital image correlation measurement system.

resultsThe neck-shaft angles (NSA) and coronal femoral horizontal offset (CFHO) of the 3D-printed CFS stem (NSA: 125.22°, CFHO: 41.03 mm) were closer to those of the intact femur (NSA: 127.37°, CFHO: 43.27 mm) compare with the Trilock stem (NSA: 132.61°, CFHO: 32.98 mm). In addition, the 3D-printed CFS stem showed improved fitness at cross-sections (The top of the lesser trochanter: 6.31%, the middle of the lesser trochanter: 23.42%, the bottom of the lesser trochanter: 26.61%) and reduced micro-motion under different simulated bodyweight loads (1000: 0.043, 1375: 0.056, 2060 N: 0.061 mm).

conclusionsThe 3D-printed CFS stem provides improved restoration of anatomical parameters, enhanced fitness, and superior biomechanical performance compared with the Trilock stem.

Indexed as

Arthroplasty, Replacement, HipFemurHip ProsthesisPrinting, Three-DimensionalProsthesis DesignBiomechanical PhenomenaHumansanatomical parameterscustomized femoral short‐stemfitnessmicro‐motionstrain distributiontotal hip arthroplasty

Identifiers

PMID39971715
PMCPMC11962284

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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.