{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T06:45:52Z","timestamp":1780469152234,"version":"3.54.1"},"reference-count":8,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2021,3,8]],"date-time":"2021-03-08T00:00:00Z","timestamp":1615161600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Cosmetic Dermatology"],"published-print":{"date-parts":[[2021,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Wound injury is a critical issue in hair restoration. The shape and size of blades cause varying degree of tissue trauma.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To check (mathematically) the tissue trauma (injury) caused by different shapes of the blades at varying angles.<\/jats:p><\/jats:sec><jats:sec><jats:title>Patients\/Methods<\/jats:title><jats:p>The trigonometric theories were applied to each shape and angles to calculate the surface area (correlating with the tissue injury). These shapes included rectangular blade, 30\u00b0\u2010angled blades, 60\u00b0\u2010angled blade, 30\u00b0\u2010sapphire blade, and 60\u00b0\u2010sapphire blade. The surface areas were calculated at 90\u00b0, 45\u00b0, 30\u00b0, and 15\u00b0 insertion angles.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The 30\u00b0\u2010sapphire blade caused the least injury followed by 30\u00b0\u2010angled blade. The rectangular blade had the largest surface area and hence will produce the maximum amount of tissue injury. The blade at 90\u00b0 produced maximum injury whereas the blade entering at 15\u00b0, produced lowest amount of tissue injury. The blade in sagittal direction caused less injury as compared to the blade in coronal direction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The 30\u00b0\u2010sapphire blade caused the least tissue injury whereas the rectangular blade caused maximum injury. The amount of tissue injury decreases as the angle of insertion decreases and vice versa.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jocd.14006","type":"journal-article","created":{"date-parts":[[2021,2,18]],"date-time":"2021-02-18T06:57:00Z","timestamp":1613631420000},"page":"3610-3615","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Effect of different shapes of recipient site creation micro\u2010blades at varying angles and wound injury"],"prefix":"10.1111","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0251-688X","authenticated-orcid":false,"given":"Muhammad","family":"Ahmad","sequence":"first","affiliation":[{"name":"Plastic &amp; Hair Restoration Surgeon Aesthetic Plastic Surgery &amp; Hair Transplant Institute  Islamabad Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammad","family":"Ismail","sequence":"additional","affiliation":[{"name":"Department of Mathematics Govt Postgraduate College Asghar Mall  Rawalpindi Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,3,8]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.33589\/22.1.0024"},{"issue":"1","key":"e_1_2_10_3_1","first-page":"168","article-title":"Comparison of different instruments to make recipient sites: needles vs blades","volume":"21","author":"Perez\u2010Meza D","year":"2011","journal-title":"Hair Trnaspl Forum Intl"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.4103\/ijt.ijt_84_17"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1524-4725.1999.99067.x"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1524-4725.2005.31606"},{"key":"e_1_2_10_7_1","unstructured":"https:\/\/www.hamiltoncompany.com\/laboratory\u2010products\/needles\u2010knowledge\/needle\u2010gauge\u2010chartaccessed on 29\u201009\u20102020."},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/00004728-200305000-00027"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.33589\/30.2.37"}],"container-title":["Journal of Cosmetic Dermatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jocd.14006","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/jocd.14006","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jocd.14006","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,28]],"date-time":"2023-08-28T06:33:13Z","timestamp":1693204393000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jocd.14006"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3,8]]},"references-count":8,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2021,11]]}},"alternative-id":["10.1111\/jocd.14006"],"URL":"https:\/\/doi.org\/10.1111\/jocd.14006","archive":["Portico"],"relation":{},"ISSN":["1473-2130","1473-2165"],"issn-type":[{"value":"1473-2130","type":"print"},{"value":"1473-2165","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,3,8]]},"assertion":[{"value":"2020-10-07","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-02-11","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-03-08","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}