Morphology properties of scapular spine relative to reverse shoulder arthroplasty: A biomechanical study

被引:2
|
作者
Chen, Junfeng [1 ]
Chen, Chen [1 ,2 ]
Nour, Majid [3 ]
Liu, Debao [4 ]
Zhu, Youyu [1 ]
Zhang, Wei [1 ]
Polat, Kemal [5 ]
Deng, Xuefei [1 ]
机构
[1] Anhui Med Univ, Dept Anat, Hefei 230032, Peoples R China
[2] Anqing Normal Univ, Affiliated Hosp, Anqing 246011, Peoples R China
[3] King Abdulaziz Univ, Fac Engn, Dept Elect & Comp Engn, Jeddah 21589, Saudi Arabia
[4] Anhui Med Univ, Affiliated Hosp 1, Dept Traumat Orthoped, Hefei 230022, Peoples R China
[5] Bolu Abant Izzet Baysal Univ, Fac Engn, Dept Elect & Elect Engn, TR-14280 Bolu, Turkiye
关键词
Scapular spine; Anatomical morphology; Biomechanics; Reverse shoulder arthroplasty; PLATE FIXATION; FRACTURES; ACROMION; BASE;
D O I
10.1016/j.bspc.2023.104827
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Objective: Stress fractures of the scapular spine are often a consequence of reverse shoulder arthroplasty (RSA) reconstruction. Knowledge of the morphology and strength of the scapular spine may have potential value preoperative planning of RSA. However, the morphometric and biomechanics of the scapular spine have not been thoroughly investigated yet. This study aimed to evaluate the association between different morphology of the scapular spine and biomechanics to identify scapular spine with weaker strength that may be destroyed after RSA.Methods: Anatomical morphology of 102 dry scapulae was studied. Nine bony landmarks associated with the anatomical morphology of the scapular spine were measured. After the measurements, each specimen was loaded to failure under an axial compressive load. All the samples were analyzed at the point of failure to calculate the failure load and energy.Results: Five types of scapular spine were observed in the population. Type I (fusiform shape) was the most frequent (32.4%), and the least common type included type V (S-shape) (4.9%). The morphological parameters for type II (slender rod shape) were smaller than those for the other types. Type II scapular spine withstood the lowest failure load (381.87 +/- 25.31 N) and energy (1.45 +/- 0.56 J), followed by type V (530.98 +/- 25.26 N and 1.75 +/- 0.49 J).Conclusion: Significant variation was observed in the anatomical morphology of scapular spine. Slender rod shaped and S-shaped scapular spine bore lower load and energy, which may be the potential anatomical related factors of stress fractures after RSA.
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页数:6
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