They can grow together but will take longer than a week. There's a man the had his hand degloved and they sewed it into his stomach to heal, after which they cu

They can grow together but will take longer than a week. There's a man the had his hand degloved and they sewed it into his stomach to heal, after which they cut his hand back out and used his stomach skin to wrap around and reshape some resemblance of a hand. Example 1: https://www.thesun.co.uk/news/4303135/surgeons-save-hand-sewing-into-stomach/ https://www.thesun.co.uk/news/4303135/surgeons-save-hand-sew... Example 2: https://www.menshealth.com/health/a19517212/carlos-mariotti-mitten-hand-surgery-mangled/ https://www.menshealth.com/health/a19517212/carlos-mariotti-...