Muscular and tendon degeneration after achilles rupture: new insights into future repair strategies Gil-Melgosa Lara Grasa Jorge Universidad de Zaragoza Urbiola Ainhoa Llombart Rafael Susaeta Ruiz Miguel Montiel Veronica Ederra Cristina Calvo Begona Universidad de Zaragoza Ariz Mikel Ripalda-Cemborain Purificacion Prosper Felipe Ortiz-de-Solorzano Carlos Pons-Villanueva Juan Perez Ruiz Ana 2022 research-article