Morphometric study of percutaneous A1 pulley of thumb release
Abstract Through anatomy, microscope, histopathology, and simulating needle knife operation on specimens, to accumulate the relevant parameters of the A1 pulley of thumb, and to provide an anatomical evidence for the needle knife therapy of stenosing flexor tenosynovitis. A total of 20 fingers were...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-24759-5 |
| _version_ | 1811302017434386432 |
|---|---|
| author | Wei-xing Zhong Zu-jiang Chen Wei-jie Peng Rui-bin Gu Jun-hua Li Yi-kai Li |
| author_facet | Wei-xing Zhong Zu-jiang Chen Wei-jie Peng Rui-bin Gu Jun-hua Li Yi-kai Li |
| author_sort | Wei-xing Zhong |
| collection | DOAJ |
| description | Abstract Through anatomy, microscope, histopathology, and simulating needle knife operation on specimens, to accumulate the relevant parameters of the A1 pulley of thumb, and to provide an anatomical evidence for the needle knife therapy of stenosing flexor tenosynovitis. A total of 20 fingers were selected from 20 intact adult upper limb specimens, a small amount of emerald green waterproof dye was injected from the needle insertion point, dissected layer by layer, and the A1 pulley and neurovascular bundle were observed. Observe the loosening of the thumb A1 pulley after 5 and 10 times of simulated needle knife cutting on the specimen; observe the relationship between the needle knife entry point and the A1 pulley under the thumb extension and abduction, and the thumb extension neutral position respectively; further observe the histological characteristics, and the relationship between needle entry point and A1 pulley by microscope. ① In general observation, the A1 pulleys of each finger were transverse fibers perpendicular to the flexor tendon, tough in texture, connected with synovial fibers at the proximal end. It is difficult to distinguish, and connected with oblique fibers at the distal end. ② The release rate of the thumb A1 pulley after 5 and 10 times of simulated needle knife cutting on the specimen were (40.46 ± 2.22)% and (63.52 ± 4.49)%, respectively. ③ In the neutral position of the thumb straightening, the needle entry point is 3.06 ± 0.14 mm from the proximal side of the proximal edge of the A1 pulley, which overlaps with the needle entry point where the thumb is straight and abducted. ④ Observed under a microscope, the A1 pulley is a dense transverse fiber with a pale yellow dense connective tissue, both ends are continuous with the synovial fibers. It is thin and translucent, and loose connective tissue. The A1 pulley is a dense transverse fiber with a pale yellow dense connective tissue. The anatomical key points of the needle knife therapy lie in the extended and abducted position of the thumb. Currently, it is believed that cutting the proximal edge of the A1 pulley is sufficient, and there is no need to cut the entire A1 pulley. |
| first_indexed | 2024-04-13T07:20:28Z |
| format | Article |
| id | doaj.art-8a4b606e429947daa4e3c23b7e506881 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T07:20:28Z |
| publishDate | 2022-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8a4b606e429947daa4e3c23b7e5068812022-12-22T02:56:38ZengNature PortfolioScientific Reports2045-23222022-12-011211610.1038/s41598-022-24759-5Morphometric study of percutaneous A1 pulley of thumb releaseWei-xing Zhong0Zu-jiang Chen1Wei-jie Peng2Rui-bin Gu3Jun-hua Li4Yi-kai Li5School of Traditional Chinese Medicine, Southern Medical UniversitySchool of Traditional Chinese Medicine, Southern Medical UniversitySchool of Traditional Chinese Medicine, Southern Medical UniversitySchool of Traditional Chinese Medicine, Southern Medical UniversitySchool of Traditional Chinese Medicine, Southern Medical UniversitySchool of Traditional Chinese Medicine, Southern Medical UniversityAbstract Through anatomy, microscope, histopathology, and simulating needle knife operation on specimens, to accumulate the relevant parameters of the A1 pulley of thumb, and to provide an anatomical evidence for the needle knife therapy of stenosing flexor tenosynovitis. A total of 20 fingers were selected from 20 intact adult upper limb specimens, a small amount of emerald green waterproof dye was injected from the needle insertion point, dissected layer by layer, and the A1 pulley and neurovascular bundle were observed. Observe the loosening of the thumb A1 pulley after 5 and 10 times of simulated needle knife cutting on the specimen; observe the relationship between the needle knife entry point and the A1 pulley under the thumb extension and abduction, and the thumb extension neutral position respectively; further observe the histological characteristics, and the relationship between needle entry point and A1 pulley by microscope. ① In general observation, the A1 pulleys of each finger were transverse fibers perpendicular to the flexor tendon, tough in texture, connected with synovial fibers at the proximal end. It is difficult to distinguish, and connected with oblique fibers at the distal end. ② The release rate of the thumb A1 pulley after 5 and 10 times of simulated needle knife cutting on the specimen were (40.46 ± 2.22)% and (63.52 ± 4.49)%, respectively. ③ In the neutral position of the thumb straightening, the needle entry point is 3.06 ± 0.14 mm from the proximal side of the proximal edge of the A1 pulley, which overlaps with the needle entry point where the thumb is straight and abducted. ④ Observed under a microscope, the A1 pulley is a dense transverse fiber with a pale yellow dense connective tissue, both ends are continuous with the synovial fibers. It is thin and translucent, and loose connective tissue. The A1 pulley is a dense transverse fiber with a pale yellow dense connective tissue. The anatomical key points of the needle knife therapy lie in the extended and abducted position of the thumb. Currently, it is believed that cutting the proximal edge of the A1 pulley is sufficient, and there is no need to cut the entire A1 pulley.https://doi.org/10.1038/s41598-022-24759-5 |
| spellingShingle | Wei-xing Zhong Zu-jiang Chen Wei-jie Peng Rui-bin Gu Jun-hua Li Yi-kai Li Morphometric study of percutaneous A1 pulley of thumb release Scientific Reports |
| title | Morphometric study of percutaneous A1 pulley of thumb release |
| title_full | Morphometric study of percutaneous A1 pulley of thumb release |
| title_fullStr | Morphometric study of percutaneous A1 pulley of thumb release |
| title_full_unstemmed | Morphometric study of percutaneous A1 pulley of thumb release |
| title_short | Morphometric study of percutaneous A1 pulley of thumb release |
| title_sort | morphometric study of percutaneous a1 pulley of thumb release |
| url | https://doi.org/10.1038/s41598-022-24759-5 |
| work_keys_str_mv | AT weixingzhong morphometricstudyofpercutaneousa1pulleyofthumbrelease AT zujiangchen morphometricstudyofpercutaneousa1pulleyofthumbrelease AT weijiepeng morphometricstudyofpercutaneousa1pulleyofthumbrelease AT ruibingu morphometricstudyofpercutaneousa1pulleyofthumbrelease AT junhuali morphometricstudyofpercutaneousa1pulleyofthumbrelease AT yikaili morphometricstudyofpercutaneousa1pulleyofthumbrelease |