Rigorous Mathematical Derivation of Inclination Angle for Single Cut Rotational Osteotomy for Tibia Deformity Correction.
| Autor: | Qatu M; Orthopedic Surgery Corewell Health., Al-Jamal M; School of Medicine Wayne State University., Mouzaihem H; Orthopedics Corewell Health. |
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| Jazyk: | angličtina |
| Zdroj: | Orthopedic reviews [Orthop Rev (Pavia)] 2024 Jun 30; Vol. 16, pp. 120302. Date of Electronic Publication: 2024 Jun 30 (Print Publication: 2024). |
| DOI: | 10.52965/001c.120302 |
| Abstrakt: | Background: To rigorously derive easy to use formulae for the inclination angle for single cut rotation osteotomy that can be used for tibia deformity correction. Method: Three theorems were proven using trigonometric identities and concepts of linear algebra. These were rigorously shown. The three concepts were how to convert deformities in an AP/Lateral plane to an oblique plane deformity with a true angular magnitude of deformity; how to project an angular quantity from one plane to another; and the calculation of the inclination angle for the oblique osteotomy plane. All figures in this article were created by the authors of this paper. Results: From the formula derived, a statistical t-test was performed that showed no significant difference between the formula derived in this paper and the original Sangeorzan paper charts (p=0.8782). Conclusions: The formulae described in this article are a method to accurately calculate the inclination angle of the osteotomy for a single cut rotational osteotomy for tibial deformity correction. Clinical Relevance: The article gives a deeper understanding of fundamental concepts behind deformity correction and provides an easy-to-use mathematical formula to calculate the osteotomy inclination for single cut rotational osteotomies. |
| Databáze: | MEDLINE |
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