{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T16:57:28Z","timestamp":1792515448198,"version":"4.5.0"},"reference-count":98,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,10,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Calcium phosphate cement (CPC) use has been previously described as a strategy to reduce the rates of pseudomeningocele and CSF leakage following skull base surgery. The authors aimed to present their institutional experience with CPC in retrosigmoid craniotomy and perform a systematic review of the literature to determine the effectiveness of CPC in reducing postoperative complications, including pseudomeningocele and craniotomy-site CSF leakage.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>A retrospective single-institution cohort study of patients who underwent retrosigmoid craniotomy with and without CPC cranioplasty from January 2017 to April 2024 was performed. A systematic literature review and meta-analysis of CPC use in retrosigmoid craniotomy was also performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Of 336 patients who underwent retrosigmoid craniotomy, 193 (57%) were female and the median age at surgery was 55 years (range 18\u201381 years). The median follow-up duration was 23 months (range 3\u201380 months). CPC was used to seal the edge of the craniotomy in 66 patients (20%). Among all patients, 50 (15%) experienced a postoperative complication, and 28 (8%) were wound-specific complications. Patients in the non-CPC group experienced significantly more postoperative wound-specific complications than those in the CPC group (10% vs 0%, p = 0.002). Specifically, pseudomeningocele occurred in 0 patients (0%) in the CPC group compared with 24 patients (9%) in the non-CPC group (p = 0.006), which progressed to CSF leaks at the craniotomy site in 6 patients (p = 0.60). Additionally, no patients (0%) in the CPC group experienced wound infection, dehiscence, or breakdown compared with 10 patients (4%) in the non-CPC group (p = 0.22). Five patients (8%) in the CPC group reported prolonged mild incisional pain at the craniotomy site, and there were no instances of major complications related to the CPC. In the meta-analysis, 10 studies met the inclusion criteria, yielding a total of 2166 patients (including the current study), 1101 of whom received CPC. In the pooled analysis, CPC was significantly associated with lower risk of CSF leakage at the craniotomy site (OR 0.23, 95% CI 0.13\u20130.42; p &lt; 0.01) and lower risk of infection (OR 0.17, 95% CI 0.08\u20130.38; p &lt; 0.01).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>CPC use in retrosigmoid craniotomies could be a safe and effective strategy to reduce the incidence of pseudomeningocele and craniotomy-site CSF leakage, leading to lower rates of wound-related complications and infection.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2025.1.jns241076","type":"journal-article","created":{"date-parts":[[2025,6,6]],"date-time":"2025-06-06T21:48:49Z","timestamp":1749246529000},"page":"1027-1036","source":"Crossref","is-referenced-by-count":6,"title":["Use of calcium phosphate bone cement in retrosigmoid craniotomies to reduce rates of pseudomeningocele and craniotomy-site CSF leakage: a cohort study and meta-analysis"],"prefix":"10.3171","volume":"143","author":[{"given":"Megan M. J.","family":"Bauman","sequence":"first","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"},{"name":"Mayo Clinic Rhoton Neurosurgery and Otolaryngology Surgical Anatomy Program, Rochester; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin L.","family":"Webb","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charlotte E.","family":"Michaelcheck","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucas P.","family":"Carlstrom","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramin A.","family":"Morshed","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jamie J.","family":"Van Gompel","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"},{"name":"Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Link","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"},{"name":"Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Peris Celda","sequence":"additional","affiliation":[{"name":"Department of Neurologic Surgery, Mayo Clinic, Rochester;"},{"name":"Mayo Clinic Rhoton Neurosurgery and Otolaryngology Surgical Anatomy Program, Rochester; and"},{"name":"Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"1","key":"b1","series-title":"Neurosurg Rev","first-page":"15","article-title":"Functional outcome and postoperative complications after the microsurgical removal of large vestibular schwannomas via the retrosigmoid approach: a meta-analysis","volume":"37","author":"Zou P","year":"2014","unstructured":"Zou P, Zhao L, Chen P,  Functional outcome and postoperative complications after the microsurgical removal of large vestibular schwannomas via the retrosigmoid approach: a meta-analysis. 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