Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture
Abstract. Background:. The angiography with micro-computed tomography (micro-CT) has been proved its great advantages on investigating the intra-osseous vascularity of carpal bones. But few researches have focused on the intra-hamate vascularity. This study aimed to illustrate the intra-osseous arte...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer
2019-11-01
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| Series: | Chinese Medical Journal |
| Online Access: | http://journals.lww.com/10.1097/CM9.0000000000000417 |
| _version_ | 1819296155681423360 |
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| author | Zi-Run Xiao Wei-Guang Zhang Ge Xiong Ning-Ning Wang |
| author_facet | Zi-Run Xiao Wei-Guang Zhang Ge Xiong Ning-Ning Wang |
| author_sort | Zi-Run Xiao |
| collection | DOAJ |
| description | Abstract. Background:. The angiography with micro-computed tomography (micro-CT) has been proved its great advantages on investigating the intra-osseous vascularity of carpal bones. But few researches have focused on the intra-hamate vascularity. This study aimed to illustrate the intra-osseous arteries of the hamate and the relationship between the intra-hamate vascularity and the avascular risk of different types of hamate fractures.
Methods:. Six normal cadaveric hamates were investigated with red lead (Pb3O4) micro-CT angiography. The intra-osseous arteries of specimens were clearly enhanced and the three-dimensional model was reconstructed. In order to study the features of the arterial entrances and intra-hamate vascularity, the diameters, quantities, locations of enhanced arteries, and the locations of transversal/proximal pole fracture lines on the body of the hamate were statistically compared. Besides, in order to analyze the relationship between intra-hamate vascularities and different hamate fractures, 127 cases of hamate fractures who presented in our hospital from March 2003 to June 2017 were retrospectively studied.
Results:. A total of 94 cases were followed up (range: 4–37 months; mean: 12.4 months) effectively. The overall union rate of hamate fractures was as high as 92.6% (87 of 94 cases), while non-union of fracture on hamate hook was more common (P = 0.031). The arterial entrances were located around the dorsal, volar, radial, ulnar non-articular surfaces of the hamate body and the hook of the hamate. Generally, there were one to two trunk arteries on the volar non-articular surface and one to three trunk arteries on the dorsal non-articular surface. They formed one or two arterial arches, from which some branches were emitted and supplied the proximal parts. The intra-osseous vascularities of the hamate body were generally located in the radial part. The blood supply of the hook was mainly from the volar non-articular surface in most specimens. Hamate fractures could be classified into four types: fractures of the transversal/proximal pole, medial tuberosity, dorsal coronal of the hamate body, and fractures of the hamate hook.
Conclusions:. This study showed new features of intra-hamate vascularity and the results will guide surgeons to reduce the vascular damage during the hamate fracture operations. The fracture lines of different types of hamate fractures may disrupt the intra-hamate arteries. The intra-hamate vascularities will have different influences on the avascular risks of different hamate fractures. |
| first_indexed | 2024-12-24T04:53:37Z |
| format | Article |
| id | doaj.art-8eb3b712f52a481c9a8c7157a39dfbdf |
| institution | Directory Open Access Journal |
| issn | 0366-6999 2542-5641 |
| language | English |
| last_indexed | 2024-12-24T04:53:37Z |
| publishDate | 2019-11-01 |
| publisher | Wolters Kluwer |
| record_format | Article |
| series | Chinese Medical Journal |
| spelling | doaj.art-8eb3b712f52a481c9a8c7157a39dfbdf2022-12-21T17:14:27ZengWolters KluwerChinese Medical Journal0366-69992542-56412019-11-01132212572258010.1097/CM9.0000000000000417201911050-00008Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fractureZi-Run Xiao0Wei-Guang Zhang1Ge Xiong2Ning-Ning Wang3Zi-Run Xiao now works at Department of Orthopaedic Surgery, No. 988 Hospital of Joint Logistic Support Force.Zi-Run Xiao now works at Department of Orthopaedic Surgery, No. 988 Hospital of Joint Logistic Support Force.Zi-Run Xiao now works at Department of Orthopaedic Surgery, No. 988 Hospital of Joint Logistic Support Force.Zi-Run Xiao now works at Department of Orthopaedic Surgery, No. 988 Hospital of Joint Logistic Support Force.Abstract. Background:. The angiography with micro-computed tomography (micro-CT) has been proved its great advantages on investigating the intra-osseous vascularity of carpal bones. But few researches have focused on the intra-hamate vascularity. This study aimed to illustrate the intra-osseous arteries of the hamate and the relationship between the intra-hamate vascularity and the avascular risk of different types of hamate fractures. Methods:. Six normal cadaveric hamates were investigated with red lead (Pb3O4) micro-CT angiography. The intra-osseous arteries of specimens were clearly enhanced and the three-dimensional model was reconstructed. In order to study the features of the arterial entrances and intra-hamate vascularity, the diameters, quantities, locations of enhanced arteries, and the locations of transversal/proximal pole fracture lines on the body of the hamate were statistically compared. Besides, in order to analyze the relationship between intra-hamate vascularities and different hamate fractures, 127 cases of hamate fractures who presented in our hospital from March 2003 to June 2017 were retrospectively studied. Results:. A total of 94 cases were followed up (range: 4–37 months; mean: 12.4 months) effectively. The overall union rate of hamate fractures was as high as 92.6% (87 of 94 cases), while non-union of fracture on hamate hook was more common (P = 0.031). The arterial entrances were located around the dorsal, volar, radial, ulnar non-articular surfaces of the hamate body and the hook of the hamate. Generally, there were one to two trunk arteries on the volar non-articular surface and one to three trunk arteries on the dorsal non-articular surface. They formed one or two arterial arches, from which some branches were emitted and supplied the proximal parts. The intra-osseous vascularities of the hamate body were generally located in the radial part. The blood supply of the hook was mainly from the volar non-articular surface in most specimens. Hamate fractures could be classified into four types: fractures of the transversal/proximal pole, medial tuberosity, dorsal coronal of the hamate body, and fractures of the hamate hook. Conclusions:. This study showed new features of intra-hamate vascularity and the results will guide surgeons to reduce the vascular damage during the hamate fracture operations. The fracture lines of different types of hamate fractures may disrupt the intra-hamate arteries. The intra-hamate vascularities will have different influences on the avascular risks of different hamate fractures.http://journals.lww.com/10.1097/CM9.0000000000000417 |
| spellingShingle | Zi-Run Xiao Wei-Guang Zhang Ge Xiong Ning-Ning Wang Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture Chinese Medical Journal |
| title | Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| title_full | Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| title_fullStr | Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| title_full_unstemmed | Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| title_short | Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| title_sort | features of intra hamate vascularity and its possible relationship with avascular risk of hamate fracture |
| url | http://journals.lww.com/10.1097/CM9.0000000000000417 |
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