Nan giai lam sang lap di lap lai
Rach chong gan quay la mot trong nhung chan thuong vai thuong gap nhat trong thuc hanh chinh hinh. Sau phau thuat phuc hoi, ty le dut lai van o muc cao — len toi 20-40% doi voi cac truong hop rach lon.
Van de vuot xa suc cang chi khau. Thach thuc thuc su nam o viec phuc hoi diem bam — giao dien chuyen biet noi gan gap xuong. Mot khi bi rach, co the nguoi kho co the tu tai tao cau truc nay. Bac si phau thuat co the gan lai gan, nhung neu khong co su lien gan-xuong thuc su, co dinh co hoc don thuan khong the giu mai.
Day la ly do chinh hinh da chuyen sang implant cam ung sinh hoc — thiet bi duoc thiet ke khong chi de ho tro, ma de huong dan co the moc mo moi.
Hai diem dau trong cac giai phap hien tai
Implant cam ung sinh hoc da ton tai. Pho bien nhat la mieng dan sinh hoc tu collagen. Chung hoat dong — phan tich tong hop cho thay ty le dut lai chi 8,3% cho phuc hoi rach toan bo lop co tang cuong[1]. Nhung hai van de van ton tai:
Nguy co phan ung mien dich. Mieng dan collagen truyen thong tu mang duoi niem mac ruot non lon (SIS) co the kich hoat thai ghep mien dich do con DNA con sot. Y van ghi nhan cac truong hop nghiem trong viem bao hoat dich duoi mom cung vai va hinh thanh the hat gao[2][3].
Ho tro co hoc khong du. Mieng dan collagen nguyen chat mem — chung thuc day moc mo nhung khong the cung cap su on dinh co hoc can thiet trong nhung tuan dau tien then chot cua qua trinh lanh. Vi tri phuc hoi de ton thuong nhat chinh xac la khi no can ho tro cau truc nhat.
WingHeal duoc thiet ke de giai quyet dong thoi ca hai van de.
Hai vat lieu, hai nhiem vu
Khai niem cot loi la thiet ke hai lop: cau truc cong voi sinh hoc.
PEEK (polyether ether ketone) lam nen cau truc. PEEK co hang thap ky su dung da duoc chung minh trong chinh hinh, dac biet trong phau thuat cot song. Do ben co hoc cua no gan bang xuong, trong suot tren X-quang (cho phep chup hinh sau mo khong bi nhieu), on dinh hoa hoc va tuong thich sinh hoc cao. Muoi lam nghien cuu trong co so kien thuc cua chung toi xac nhan PEEK duoc chap nhan rong rai la vat lieu sinh hoc chinh hinh nen tang[4].
Collagen SIS xu ly dac biet lam lop cam ung sinh hoc. Collagen thuc day hinh thanh sun soi, huong dan tai tao diem bam. Diem khac biet then chot nam o quy trinh xu ly — SIS cua WingHeal trai qua cac buoc tinh che bo sung giam ham luong peptide con lai xuong muc rat thap, giam dang ke nguy co phan ung mien dich.
Day khong phai cach tiep can "thay the xuong." Day la cach tiep can "giup xuong moc lai." PEEK ganh tai co hoc trong giai doan dau trong khi SIS huong dan lien xuong sinh hoc phia sau. Khi diem bam duoc phuc hoi, implant chuyen tu vai chinh sang vai phu.
Du lieu cho thay gi
Trong nghien cuu dong vat lon (mo hinh chong gan quay tren cuu), WingHeal chung minh hai ket qua then chot:
Tang 71,8% do cung co sinh hoc. So voi phuc hoi tieu chuan bang phuong phap tuong duong xuyen xuong (TOE), phuc hoi tang cuong WingHeal cho thay do cung cao hon dang ke. Do cung cao hon co nghia la ho tro co hoc manh hon, truc tiep giam nguy co dut lai som.
Hinh thanh sun soi tai 4 tuan. Cac lat cat mo hoc cho thay sun soi ro rang tai vi tri phuc hoi chi sau bon tuan phau thuat — mot dau hieu then chot cua phuc hoi diem bam. De so sanh, cac san pham tuong tu thuong can hon 5 tuan cho tich hop te bao vat chu ban dau va khoang 3 thang cho hinh thanh collagen moi co the nhin thay[6].
Cac ket qua nay duoc cong bo tren tap chi binh duyet Bioengineering (2023)[5].
Thay doi gi trong phong mo
Doi voi bac si chinh hinh, mot implant tot khong chi can hieu qua — no con phai thuc te.
Thiet ke cua WingHeal don gian hoa thu tuc cay ghep, giam thoi gian phau thuat khoang 30 phut. Day khong don thuan la loi ich ve hieu suat — thu tuc ngan hon co nghia la nguy co gay me thap hon, thoi gian phoi nhiem mo it hon, va nang suat phong mo cao hon.
Buoc tiep theo
WingHeal hien dang chuan bi nop ho so TFDA tai Dai Loan va len ke hoach theo con duong FDA 510(k) tai Hoa Ky. Muc tieu cua chung toi khong don gian la mot giai phap thay the re hon, ma la mot thiet ke giai quyet cac han che co ban cua san pham hien co — giup xuong thuc su lanh lai.
De biet them chi tiet ky thuat, truy cap trang san pham.
Tai lieu tham khao
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Warren JA, et al. Bioinductive Patch as an Augmentation for Rotator Cuff Repair: Systematic Review and Meta-Analysis. J Shoulder Elbow Surg. 2024;33(11):2555-2566. PubMed
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Barad SJ, et al. Severe Subacromial/Subdeltoid Inflammation with Rice Bodies Associated with Implantation of a Bioinductive Collagen Patch. J Shoulder Elbow Surg. 2019;28(8):e272-e276. PubMed
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Root HR, et al. Subacromial/Subdeltoid Bursitis with Rice Bodies After Rotator Cuff Repair with a Bioinductive Collagen Implant. JBJS Case Connect. 2023;13(1):e22.00565. PubMed
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Kurtz SM, Devine JN. PEEK Biomaterials in Trauma, Orthopedic, and Spinal Implants. Biomaterials. 2007;28(32):4845-4869. PubMed
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Lin YH, et al. PEEK Augment with Collagen Scaffold for Rotator Cuff Repair: Fibrocartilage Formation at the Enthesis. Bioengineering. 2023;10(1):71. DOI
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Thon SG, et al. Evaluation of Healing Rates and Safety with a Bioinductive Collagen Patch for Large and Massive Rotator Cuff Tears. Am J Sports Med. 2019;47(8):1901-1908. PubMed