====== Craniotomy for chronic subdural hematoma ======
Till 1970s, [[craniotomy]] was the most commonly used method. [[Burr hole trephination for chronic subdural hematoma]] became the most preferred method from 1980s. In [[1977]], [[Twist drill craniotomy for chronic subdural hematoma]] was introduced. [[Closed system drainage]] after a [[Burr hole]] (BH) or a [[Twist drill]] (TD) became the most frequently used surgical method
((Lee KS. How to Treat Chronic Subdural Hematoma? Past and Now. J Korean
Neurosurg Soc. 2019 Mar;62(2):144-152. doi: 10.3340/jkns.2018.0156. Epub 2018 Nov
30. PubMed PMID: 30486622; PubMed Central PMCID: PMC6411568.
)).

Burr hole washout is superior interns of clinical and financial outcome; however, prospective long-term multicenter clinical studies are required to verify these findings
((Regan JM, Worley E, Shelburne C, Pullarkat R, Watson JC. Burr Hole Washout
versus Craniotomy for Chronic Subdural Hematoma: Patient Outcome and Cost
Analysis. PLoS One. 2015 Jan 22;10(1):e0115085. doi:
10.1371/journal.pone.0115085. eCollection 2015. PubMed PMID: 25611468.)).

see [[Minicraniotomy for chronic subdural hematoma]].