Miyahara Helder DE Souza, Rudelli Bruno Alves, Ranzoni Lucas Verissimo, Ejnisman Leandro, Vicente José Ricardo Negreiros, Gurgel Henrique Melo DE Campos
Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Instituto de Ortopedia e Traumatologia, Grupo de Quadril, São Paulo, SP, Brazil.
Acta Ortop Bras. 2022 Aug 26;30(4):e250481. doi: 10.1590/1413-785220223004e250481. eCollection 2022.
Osteonecrosis of the femoral head (ONFH) is a pathology that can be treated with many approaches by the hip surgeon. Advanced decompression is a technique that aims to prevent the collapse of the femoral head and the arthrosis process of the joint, a technique already widespread and used by hip surgeons. In this study, we performed the technique with a new retractable blade and a new bone substitute as graft for the femoral head.
To evaluate the technique with new instruments (EasyCore Hip) and a calcium phosphate bone substitute (Graftys HBS).
Patients with osteonecrosis of the femoral head without major degenerative changes, such as femoral head collapse, were selected. Femoral head decompression was performed using the EasyCore Hip retractable blade along with the calcium phosphate bone substitute as graft (Graftys HBS).
The instruments proved to be reliable and reproducible, and the bone substitute presented good mechanical resistance, maintaining its temperature during the surgery. The disposable retractable blade presents variation in size and angle, which is an advantage in the removal of necrotic bone. However, we must take some precautions in order to achieve a better result.
using EasyCore Hip instruments and a calcium phosphate bone substitute (Graftys HBS) is safe; however, some precautions must be taken during the use of the technique.
股骨头坏死（ONFH）是一种髋关节外科医生可用多种方法治疗的病症。高级减压术是一种旨在防止股骨头塌陷和关节关节炎进程的技术，该技术已广泛应用于髋关节外科医生。在本研究中，我们使用一种新型可伸缩刀片和一种新型骨替代物作为股骨头移植材料来实施该技术。
评估使用新型器械（EasyCore Hip）和磷酸钙骨替代物（Graftys HBS）的技术。
选择无股骨头塌陷等严重退行性改变的股骨头坏死患者。使用EasyCore Hip可伸缩刀片并结合磷酸钙骨替代物（Graftys HBS）作为移植材料进行股骨头减压。
这些器械被证明是可靠且可重复使用的，骨替代物具有良好的机械抗性，在手术过程中能保持其温度。一次性可伸缩刀片在尺寸和角度上有变化，这在去除坏死骨方面具有优势。然而，为了取得更好的效果，我们必须采取一些预防措施。
使用EasyCore Hip器械和磷酸钙骨替代物（Graftys HBS）是安全的；然而，在使用该技术过程中必须采取一些预防措施。
