PubMed · 6014315
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H Handa, H Matsumura. 1966. [Craniotomy. (1)].. https://pubmed.ncbi.nlm.nih.gov/6014315/
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BACKGROUND: Craniotomy bone flaps are replaced for both cosmetic and protective purposes. The purpose of this study was to determine the facility, strength, timing, and cost effectiveness of an alternative system for securing bone flaps. The system consists of titanium discs that clamp the bone flap to the skull edge. METHODS AND RESULTS: Ten cadaver craniotomy flaps each were reattached with either 24-gauge wire, miniplates, or titanium clamps. The titanium clamp system required significantly less time to fix than either wire or miniplates. The clamps were stronger than wire and cost less than miniplates. CONCLUSION: The titanium clamp system is a reasonable alternative to present craniotomy fixation methods with respect to ease of use, time consumption, strength, and relative cost.
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OBJECTIVE: To describe simple modifications of the technique of opening and closure of the craniotomy to improve basal exposure and reconstruction. METHODS: The modifications involve: a) additional soft-tissue dissection which is carried downward to the base of the ear and to the orbital rim, exposing the orbital rim and malar eminence without removing the bone; b) cutting the bone flap so that 'bridges' of bone remain that help to stabilize the flap when it is returned to the cranium at the end of the operation; c) the wedging of bone chips between the bone flap and native cranium at the time the bone is being reaffixed so as to provide firm stability by diminishing movement of the bone flap; d) the use of bone dust and bone chips mixed with the patient's blood to seal and bridge the gap between the bone flap and the native bone; e) reattachment of the temporalis muscle with the bone flap sutures. An 'inlay' technique of duraplasty is also described. RESULTS AND CONCLUSION: These simple modifications of craniotomy provide better basal exposure and reconstruction with little additional operating time at no additional cost.