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Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Schwarz, AM; Hohenberger, GM; Schwarz, UM; Lipnik, G; Feigl, G; Plecko, M.
Anatomical references for optimizing rotational alignment of the humeral component in total elbow arthroplasty with bone loss.
Sci Rep. 2025; 15(1):23449
Doi: 10.1038/s41598-025-05973-3
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- Leading authors Med Uni Graz
- Schwarz Angelika
- Co-authors Med Uni Graz
- Feigl Georg
- Hohenberger Gloria
- Lipnik Georg
- Plecko Michael
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- Abstract:
- This in-vitro study sought to characterize a concept for humeral component positioning during Total Elbow Arthroplasty (TEA) with bone defects. One-hundred specimens were analysed focusing a potential side-specific consensus; anatomical and Computed Tomography (CT) agreements; age-, sex- and humeral length-dependent associations. The angle of rotational alignment was defined by measuring the relationship between the flexion-extension axis (FEA) of the elbow joint and the flat posterior surface of the distal humerus (PDH). Three independent observers determined the reliabilities. The intraclass correlation coefficients (ICC), Pearson correlation coefficients (r), t-tests (r, p), and levels of 95% confidence interval were computed. P-values (p) were set with 0.05. An average internal rotation angle of the FEA to the PDH from 13.0° (range 6.4-27.1) was specified. Anatomical and CT measurements exposed strong agreements (r = .923, p < .001) and excellent observer agreements (ICCs > 0.900). A contralateral side consensus (r = .906, p < .001) and a statistically significant sex difference (at mean: female: 15.1° versus male: 11.5°; p < .001) was verified. No age- and humeral length-dependent correlations were observed (r < .300). Knowledge of these anatomical landmarks and their spatial relationships can provide an essential reference for surgeons striving to replicate native joint alignment. Additionally, assessment of the contralateral (uninjured) side via CT imaging may offer a valuable template and should be considered in the management of complex TEA cases.
- Find related publications in this database (using NLM MeSH Indexing)
- Humans - administration & dosage
- Female - administration & dosage
- Male - administration & dosage
- Humerus - surgery, diagnostic imaging, anatomy & histology
- Aged - administration & dosage
- Arthroplasty, Replacement, Elbow - methods
- Middle Aged - administration & dosage
- Tomography, X-Ray Computed - administration & dosage
- Elbow Joint - surgery, diagnostic imaging
- Aged, 80 and over - administration & dosage
- Rotation - administration & dosage
- Bone Resorption - surgery, diagnostic imaging
- Adult - administration & dosage
- Range of Motion, Articular - administration & dosage
- Find related publications in this database (Keywords)
- Total elbow arthroplasty
- Fracture total elbow arthroplasty
- Bone defect management
- Bone loss management
- Anatomical landmark
- Humeral component rotational alignment
- Template concept