Complete sternal cleft individualized repair using a 3D-printed polyether ether ketone model: a case report

Author:

Zhang Guangjian1,Wang Lei2,Dang Peizhu3,Yan Yang4ORCID

Affiliation:

1. Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University , Xi’an, Shaanxi , P.R. China

2. Department of Thoracic Surgery, Tangdu Hospital, The Air Force Military Medical University , Xi’an, Shaanxi , P.R. China

3. Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University , Xi’an, Shaanxi , P.R. China

4. Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi’an Jiaotong University , Xi’an, Shaanxi , P.R. China

Abstract

Abstract Background Bicuspid aortic valve (BAV) is a common anatomical variation that the aortic valve possesses two functional cusps. Sternal cleft is a rare congenital malformation which is caused by failed fusion of sternal bones. Early surgical repair is advised; otherwise, alternative surgical techniques should be performed. Due to their biocompatibility and elasticity, 3D-printed polyether ether ketone (PEEK) implants can be used. Complete sternal cleft coexistence with BAV is infrequent. Case summary A 49-year-old man with a 6-month history of paroxysmal shortness of breath and exertional chest tightness presented to our hospital. The man was diagnosed with BAV with severe aortic valve regurgitation and a complete sternal cleft. He underwent aortic valve replacement surgery using the bovine pericardial aortic valve. Concurrently, a 3D-printed PEEK implant surgery was performed to address the sternal cleft. The patient’s postoperative recovery was uneventful. Discussion In this case, 3D-printed PEEK implants were used for high biocompatibility and elastic modulus. However, because PEEK material inherently lacks biological activity, enhancing this aspect remains a focal point of clinical research.

Funder

National Key R&D Program of China

National Natural Science Foundation of China

Publisher

Oxford University Press (OUP)

Subject

Cardiology and Cardiovascular Medicine

Reference6 articles.

1. Primary closure of superior partial sternal cleft in a 2-month-old girl: case report;Tanriverdi;Ann Pediatr Surg,2021

2. A 4-day-old newborn with an isolated sternal cleft: a rare case and literature review;Xu;Pediatr Pulmonol,2021

3. Successful surgical repair of a sternum cleft using composite mesh: a case report and new technical note;Razafimanjato;Afr J Thorac Critl Care Med,2021

4. Aortic valve regurgitation: a comprehensive review;Akinseye;Curr Probl Cardiol,2018

5. Application of biomolecules modification strategies on PEEK and its composites for osteogenesis and antibacterial properties;Han;Colloids Surf B Biointerfaces,2022

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