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The time-consuming procedure of opening and closing in craniotomy has not been improved to the same degree as have diagnostic methods and surgical treatment of cerebral neoplasms. Many methods for the control of hemorrhage from the scalp have been employed, but still there remains ample opportunity for additional aids.
The scalp tourniquet was not practicable, for it was difficult to hold it in place during the operation, and it could not always be placed so as to control the hemorrhage. The running lock stitch served its place for hemostasis, but again it was unsatisfactory, for it required additional time to sew it in place; often it failed to control hemorrhage, and more often it devitalized the cut edge of the scalp.
The scalp clamps, if properly applied, controlled the bleeding from the cut edges of the scalp, but they frequently crushed the edges of the scalp, besides cluttering the wound
Adson AW, Fincher EF. HEMOSTATIC SCALP CLIP. JAMA. 1933;101(4):276. doi:10.1001/jama.1933.27430290002010a