![]() The Centre has consistently used the autogenous bone to repair post-MVD bone window defects and has performed long-term follow-up. To our knowledge, there has been no report of cranial repair after MVD using autologous bone fragments, except for our team. Although introducing various new biomaterials has brought more options for cranial repair, it almost always increases the cost of care. Each has advantages and disadvantages: cement pastes don’t induce the formation of new bone, osteoactive biomaterials allow for the induction of bone formation, while polymers allow for vascular and bone growth without resorption. Three artificial biomaterials are available for skull reconstruction: cement pastes, osteoactive biomaterials, and prefabricated polymers. However, fixation of autogenous bone flaps still requires a metal coupling piece and often results in bone resorption, especially in younger patients. Surgeons favor autologous bone flaps because of their excellent histocompatibility. Materials used to repair cranial defects after MVD usually include autologous bone flaps and artificial biomaterials. Because an incomplete skull is associated with postoperative complications such as cerebrospinal fluid leakage, postoperative skull reconstruction is required even for small bone window craniotomy. The surgery is usually done using a suboccipital retrosigmoid approach, with a small bone flap craniotomy performed in most cases. Microvascular decompression (MVD) was first proposed by Jannetta and has become the most common surgical procedure for various cranial neurovascular compression syndromes. ![]() The use of autologous bone fragments for skull reconstruction after microvascular decompression is safe and feasible, with few postoperative wound complications and excellent long-term repair results. Two patients underwent re-operation for recurrence of hemifacial spasm, and intraoperative observation revealed that the initial skull defect was filled with new skull bone. And, the longer the follow-up period, the more satisfactory the cranial repair. Eighty-five (58.62%) patients underwent follow-up cranial computed tomography at 1 year postoperatively, showed excellent skull reconstruction. No patient developed postoperative cerebrospinal fluid leakage, incisional dehiscence, or intracranial infection. Three patients (2.06%) had delayed wound healing after surgery and were discharged after wound cleaning. The clinical and follow-up data of 145 patients who underwent microvascular decompression and skull reconstruction using autologous bone fragments in our hospital from September 2020 to September 2021 were retrospectively analyzed. The objective of this study was to evaluate the efficacy of using autologous bone fragments for skull reconstruction after microvascular decompression. Various methods are used to reconstruct the skull after microvascular decompression, giving their own advantages and disadvantages.
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