Single-Stage Reconstruction with Titanium Mesh for Compound Comminuted Depressed Skull Fracture

Article information

J Korean Neurosurg Soc. 2020;63(5):631-639
Publication date (electronic) : 2020 May 8
doi : https://doi.org/10.3340/jkns.2019.0181
Department of Neurosurgery, Institute of Wonkwang Medical Science, Wonkwang University Hospital, Iksan, Korea
Address for reprints : Ki Seong Eom Department of Neurosurgery, Institute of Wonkwang Medical Science, Wonkwang University Hospital, 895 Muwang-ro, Iksan 54538, Korea Tel : +82-63-859-1462, Fax : +82-63-852-2606, E-mail : kseom@wonkwang.ac.kr
Received 2019 August 26; Revised 2019 October 23; Accepted 2020 February 4.

Abstract

Objective

Traditionally, staged surgery has been preferred in the treatment of compound comminuted depressed fracture (FCCD) after traumatic brain injury (TBI) and involves the removal of primarily damaged bone and subsequent cranioplasty. The main reason for delayed cranioplasty was to reduce the risk of infection-related complications. Here, the author performed immediate reconstruction using a titanium mesh in consecutive patients with FCCD after TBI, reported the surgical results, and reviewed previous studies.

Methods

Nineteen consecutive patients who underwent single-stage reconstruction with titanium mesh for FCCD of the skull from April 2014 to June 2018 were retrospectively analyzed. The demographic and radiological characteristics of the patients with FCCD were investigated. The characteristics associated with surgery and outcome were also evaluated.

Results

The frequency of TBI in men (94.7%) was significantly higher than that in women. Most FCCDs (73.7%) occurred during work, the rest were caused by traffic accidents. The mean interval between TBI and surgery was 7.0±3.9 hours. The median Glasgow coma scale score was 15 (range, 8–15) at admission and 15 (range, 10–15) at discharge. FCCD was frequently located in the frontal (57.9%) and parietal (31.6%) bones than in other regions. Of the patients with FCCDs in the frontal bone, 62.5% had paranasal sinus injury. There were five patients with fractures of orbital bone, and they were easily reconstructed using titanium mesh. These patients were cosmetically satisfied. Postoperatively, antibiotics were used for an average of 12.6 days. The mean hospital stay was 17.6±7.5 days (range, 8–33). There was no postoperative seizure or complications, such as infection.

Conclusion

Immediate bony fragments replacement and reconstruction with reconstruction titanium mesh for FCCD did not increase infectious sequelae, even though FCCD involved sinus. This suggests that immediate single-stage reconstruction with titanium mesh for FCCD is a suitable surgical option with potential benefits in terms of cost-effectiveness, safety, and cosmetic and psychological outcomes.

INTRODUCTION

Compound comminuted depressed fracture (FCCD) of the kull is a type of depressed fracture with a laceration in the overlying scalp and galea in continuity with the fracture site and has been traditionally treated with surgery [4,5]. In a simple depressed skull fracture, there is no tear in the galea, and it is conventionally treated with surgical elevation only if the degree of depression is equal to or exceeds the thickness of the adjacent intact bone or if there is a degree of intracranial hematoma with mass effect that needs to be removed [5]. Up to 6% of traumatic brain injuries (TBIs) may be complicated by depressed skull fractures, and FCCD accounts for up to 90% of these injuries [4,5,19]. FCCD is associated with an infection rate of 1.9 to 10.6% [5,11,19].

There is no doubt regarding the surgical treatment technique and timing of surgery for FCCD after TBI for a long time [14]. To prevent infection in FCCD cases, it has been preferred to remove bone fragments, debride the wound, provide sufficient irrigation, and leave the cranial defect and wait for a sufficient period of time and then perform secondary cranioplasty [5,14]. The main reason for delayed cranioplasty was to reduce the risk of infection-related complications, such as sinusitis, osteomyelitis, meningitis, and empyema. However, recently, some studies have demonstrated that there is no difference in infection rate between immediate single-stage reconstruction of FCCD with titanium mesh and delayed secondary cranioplasty, and immediate single-stage reconstruction of FCCD with titanium mesh is a suitable surgical option with potential benefits in terms of cost-effectiveness, safety, and cosmetic and psychological outcomes. Moreover, the safety and feasibility of immediate titanium mesh implantation even in patients with postcraniotomy surgical site infection have been reported [6,18]. Here, the author performed immediate reconstruction with titanium mesh in consecutive patients with FCCD after TBI, reported the surgical results, and reviewed previous studies.

MATERIALS AND METHODS

The study was approved by the Institute Ethical Committee of Wonkwang University Hospital (WKUH) and in compliance with institute's requirements (WKUH 201908013). The author retrospectively analyzed the medical records and radiological images of 19 consecutive patients who underwent single-stage reconstruction with titanium mesh for FCCD of the skull after TBI from April 2014 to June 2018. All patients with FCCD confirmed by computed tomography (CT) in the emergency room (ER) were included in the study. All surgeries were performed by one neurosurgeon.

The demographic characteristics of patients with FCCD, including sex, age distribution, cause of injury, time from damage to arrival in the hospital, time to surgery after arrival at the hospital, Glasgow coma scale (GCS) at admission and discharge, and hospital stay, were analyzed. The radiological demographic characteristics, including location and size of FCCD, FCCD associated lesions, and involvement of the paranasal sinus, were evaluated. FCCD-associated findings included skull fracture alone, acute epidural hematoma (AEDH), acute subdural hematoma (ASDH), traumatic subarachnoid hemorrhage (TSAH), and traumatic intracranial hemorrhage (TICH). The characteristics associated with surgery and infection, including the presence of dural tear, period of postoperative intravenous antibiotic administration, postoperative complications, changes in inflammatory markers and body temperature, and outcome, were investigated. Inflammatory markers included white blood cell (WBC; normal range, 4000–10000/µL), erythrocyte sedimentation rate (ESR; normal range, 0–20 mm/h), and C-reactive protein (CRP; normal range, 0–5 mg/L). All patients were followed over a period of 10 months after discharge to assess long-term outcome and complications.

Surgical technique

Prophylactic antibiotics with ceftriaxone (2 g per day) were injected intravenously in all patients preoperatively in the ER. All patients underwent sufficient irrigation with normal saline prior to surgical draping under general anesthesia. The author performed removal of foreign bodies and hematomas, debridement of damaged tissues, removal of fragmented bones, drilling of suspected contaminated bone, suture of the torn dura mater, meticulous hemostasis, and sufficient irrigations with normal saline mixed with antibiotics through lacerations in the overlying scalp. Three patients (patient No. 1, 4, and 15) underwent surgery through a bicoronal skin incision due to small sized skin wound and fractures of orbital wall. The author performed removal or cauterization of the mucosa of the opening of the frontal sinus and then obliteration of the rest of the frontal sinus using noncontaminated free fat, muscle, and pericranial flaps. Some of the bone fragments that could be used sufficiently because of their large size and mild depression were reconstructed using a titanium mini plate. The author performed primary reconstruction of the skull defect in all patients using titanium mesh plates, and it was fixed using several 4- or 5-mm titanium microscrews. Titanium microscrews were inserted through the mesh and into the underlying bone circumferentially to fix the mesh. The scalp and skin were closed with monofilament suture material. Immediately after the surgery, brain CT was performed to confirm that there was no additional postoperative hematoma. All patients were intravenously injected with ceftriaxone (2 g per day) for approximately 1–2 weeks postoperatively.

RESULTS

Demographic characteristics

A total of 19 consecutive patients who underwent immediate single-stage reconstruction with titanium mesh for FCCD of the skull after TBI were included in this study. The demographic characteristics of patients are summarized in Table 1. The mean patient age was 50.4±13.6 years (range, 28–76) with 18 men (94.7%) and one woman (5.3%); the frequency of TBI in men was significantly higher than that in women. The causes of FCCD included direct impact in seven patients (36.8%), fall in four (20.1%), traffic accidents (TAs) in five (26.3%) (passenger TA in three, motorcycle TA in two), and slip in three (15.8%). All FCCD occurred during work, except for FCCD due to TA. Furthermore, there was no pedestrian TA among the causes of FCCD. The mean duration from TBI to arrival in the ER was 114.3±99.8 minutes (range, 95–394), and the mean duration from arrival in the ER to surgery was 305.1±228.1 minutes (range, 44–755). The mean GCS score was 13.9±2.0 (range, 8–15) at admission and 14.6±1.2 (range, 10–15) at discharge. The median GCS score was 15 at admission and 15 at discharge. The mean hospital stay was 17.6±7.5 days (range, 8–33).

Demographic and radiological characteristics of patients with FCCD of the skull

Radiological characteristics on CT

The radiological characteristics of patients are also summarized in Table 1. The location of FCCD included frontal bone in 11 patients (57.9%), parietal bone in six (31.6%), temporal bone in one (5.3%), and occipital bone in one (5.3%). FCCD was frequently located in the frontal and parietal bones than in other regions. Five of the patients (patient No. 1, 4, 12, 14, and 15) with FCCD in the frontal bone were accompanied by fractures of orbital bone (superior wall). The mean size of FCCD was 1252±745 mm2 (range, 336–2615), and the mean of maximal depth was 10±6 mm (range, 2–23). The associated lesion on CT included TSAH in five patients (26.3%), TICH in five (26.3%), skull fracture alone in five (26.3%), AEDH in three (15.8%), and ASDH in one (5.3%). The paranasal sinus was injured in eight patients (42.1%) and intact in 11 patients (57.9%). Of the patients with FCCD in the frontal bone, 62.5% (five patients) had paranasal sinus injury.

Characteristics associated with surgery and infection

The characteristics associated with surgery and infection of patients are summarized in Table 2. The dura mater was torn in eight patients (42.1%) and intact 11 patients (57.9%). Postoperative antibiotics were intravenously injected for an average of 12.6±4.9 days (range, 6–21). The mean WBC count was 15200±9786/µL preoperatively, 8929±3146/µL after 7 postoperative days, and 7255±2235/µL after 14 postoperative days. The mean ESR count was 7.6±9.4 mm/h preoperatively, 27.1±15.5 mm/h after 7 postoperative days, and 21.4±12.9 mm/h after 14 postoperative days. The mean CRP count was 3.3±6.2 mg/L preoperatively, 22.0±21.4 mg/L after 7 postoperative days, and 9.7±11.9 mg/L after 14 postoperative days. The mean body temperature was 36.9±0.4℃ preoperatively, 37.2±0.5℃ after 7 postoperative days, and 36.8±0.4℃ after 14 postoperative days. There were no postoperative seizure and complications in all patients.

Characteristics associated with surgery and infection of patients with FCCD of the skull

Illustrative case (patient No. 15)

A 54-year-old male patient came to the hospital with multiple TBIs caused by a passenger TA. Upon arrival at the hospital, he was in a lethargic state (GCS, E3V5M6), with loss of right direct and left consensual light reflexes due to damage to the right optic nerve. Cranial CT showed comminuted depressed fractures of the right frontal bone, a Le Fort type I and III comminuted fracture of the midfacial bones, and TICH in the right frontal lobe with pneumocephalus (Fig. 1). He underwent removal of fragmented bones, evacuation of TICH, dural repair, obliteration of the frontal sinus, and single-stage reconstruction through a bicoronal skin incision. Postoperative cranial CT showed that fragmented bones and hematoma were removed and the bony defect was reconstructed well along the contour of the native skull using titanium mesh and microscrews (Fig. 2). After 6 days, open reduction and internal fixation was performed on the orbital wall for multiple mild facial fractures in the Department of Plastic Surgery. The postoperative course was uneventful, and the patient was discharged after 32 days with no additional neurological deficits. Cranial CT after 4 months showed a well-fixed titanium mesh along the periphery of the bony defect without additional abnormality (Fig. 3).

Fig. 1.

A-C : Preoperative cranial computed tomography showing the comminuted depressed fractures of the right frontal bone, a Le Fort type I and III comminuted fracture of the midfacial bones, and traumatic intracranial hematoma in the right frontal lobe with pneumocephalus.

Fig. 2.

A-C : Postoperative cranial computed tomography showing that fragmented bones and hematoma were removed, and the bony defect was reconstructed using titanium mesh and microscrews.

Fig. 3.

A-C : Cranial computed tomography after 4 months showing well-fixed titanium mesh along the periphery of the bony defect without additional abnormality.

DISCUSSION

The majority of previous studies supports the removal of contaminated fragmented bone and elevation of FCCD as soon as possible after TBI [5,11]. The rationale for immediate surgery of FCCD originates from its association with infection and late epilepsy [5]. Jennett and Miller [11] reported an incidence of infection of 10.6% in a series of 359 patients with compound cranial fractures. They revealed that these infections were associated with a remarkably higher incidence of persistent neurological deficit, late epilepsy, and death. They also demonstrated that proper removal and replacement of the fragmented bone were safe, and there was no difference in infection rate when fragmented bones were removed rapidly and adequately, even if the dura mater was torn. Immediate surgery in FCCD cases including surgical debridement reduced the infection rate to 4.6%. Therefore, they reported that this primary surgery may not be considered dangerous, and that avoiding delayed cranioplasty could be advantageous.

The traditional treatment in patients with FCCD includes wound debridement, elevation of the fracture, removal of bone fragments, evaluation of intracranial pathological findings, and delayed cranioplasty [5,14]. Most clinical concerns regarding single-stage reconstruction with cranioplasty were related to infection. Most of the studies supporting two-stage surgery with delayed cranioplasty were based on combat-related injuries that were significantly different from those of civilians [9,10,17]. Combat-related injuries cause a higher degree of fragmentation and contamination than civilian trauma. However, numerous studies of civilian TBI have begun to counter the major concerns of infection in early primary single-stage surgery [14]. Recently reported studies show that if surgery is performed rapidly, immediate replacement of the fragmented bone does not seem to increase the infection rate, and this primary replacement does not require subsequent cranioplasty and prevents its attendant risks and complications [1,3-5,14,19]. Braakman [4] reported that there were five cases (4.6%) of infection in 109 cases of replacement and the same number (8.9%) in 56 cases where the fragments had been completely removed in 225 consecutive patients with a depressed skull fracture. Wylen et al. [19] also retrospectively reviewed 32 consecutive patients treated with debridement and elevation of compound depressed skull fractures with primary replacement of bone fragments within 72 hours of injury, and reported that there were no infectious sequelae; they concluded that immediate replacement of bone fragments in compound depressed skull fractures does not increase the risk of infectious complications. Blankenship et al. [3] also reported that there were no instances of wound infection or osteomyelitis in a retrospective study of 31 consecutive children with compound depressed skull fractures treated with bone fragment replacement. Therefore, no child required subsequent cranioplasty. They proposed that bone fragment removal for compound depressed skull fractures, regardless of the degree of contamination, presence of dural laceration, or degree of intracerebral injury, is unnecessary and that bone fragment replacement avoids a second surgery for cranioplasty. Similarly, Adeloye and Shokunbi [1] described a 0% infection rate in 12 patients with compound depressed skull fractures whose post-debridement cranial defects were treated with immediate bone replacement. They recommended primary repair of skull defects with bone fragments as the treatment of choice during debridement of compound depressed skull fractures of mild to moderate severity within 1 day of injury.

Additionally, surgeons have to consider cosmetic aspects and infection-related issues when deciding on the type of surgery. There are many alloplastic grafts available for cranioplasty. It has a variety of advantages and disadvantages depending on the materials. Polymethyl methacrylate is an acrylic resin that can be molded and provides strength and protection similar to that by the skull but has the disadvantage of an infection rate similar to that of cranioplasty with autogenous or autoclaved graft [7]. Hydroxyapatite, a calcium-based bone cement, has the advantages of increased osteoconduction and osteointegration, but it can become infected and can cause severe foreign body inflammatory reaction and extrusion [12]. In contrast, dynamic titanium mesh has good properties of high tensile strength and biological inactivity, and several studies have shown that the infection rate of cranioplasty with titanium mesh is low [18]. Titanium spinal implants have been used for pyogenic and tuberculous spondylitis and discitis without causing persistent infection [13]. Titanium is a widely used implant substance with excellent characteristics because of its adequate radiolucent, no magnetic, or paramagnetic properties and excellent biocompatibility [14]. The improved complex mesh patterns can be more convenient and rapidly fit the implants to the contour of the skull properly for both small and large skull defects while maintaining strength [14]. The frontal bone is one of the most important parts in terms of cosmetics aspect, even more so when including the fracture of orbital bone. In this study, there were five patients with fractures of orbital bone, all of whom were quickly and easily reconstruct using titanium mesh. These patients were also cosmetically satisfied and there were no postoperative complications (Fig. 4).

Fig. 4.

Preoperative and postoperative cranial CT of patients with fractures of orbital bone. CT : computed tomography.

Marbacher et al. [14] showed that primary reconstruction with titanium mesh for FCCD was feasible, safe, cost-effective, and cosmetically preferable than the conventional staged approach. This also prevents the risks and costs associated with a delayed cranioplasty, which is usually performed under general anesthesia [18]. Titanium mesh implantation has been used for some postcraniotomy surgical infections. Ehrlich et al. [6] and Wind et al. [18] demonstrated that immediate titanium mesh cranioplasty is a cost-effective, safe, and cosmetically suitable alternative to delayed cranioplasty in selected patients and may be a suitable option for the treatment of postcraniotomy infections.

In this study, the mean duration from TBI to surgery was 7.0±3.9 hours, and all patients underwent surgery on the day of injury. This suggest that the immediate administration of antibiotics in the ER and rapid surgery after TBI reduced the likelihood of infectious complications. The mean hospital stay was 18 days, which was not significantly different compared to those in other types of traumatic neurosurgical diseases. However, since additional hospital stay for delayed secondary cranioplasty in two-stage surgery was not necessary, immediate single-stage reconstruction of FCCD with titanium mesh had potential advantages in terms of cost-effectiveness.

FCCD was frequently located in the frontal and parietal bones than in other regions. Of patients with FCCD in the frontal bone, 62.5% had paranasal sinus injury. Therefore, when performing surgery for FCCD in the frontal bone, it is necessary to pay close attention to the opening of the paranasal sinus. Several studies have been reported to determine whether antibiotics reduce the incidence of meningitis in patients with FCCD. Mendelow et al. [15] reported that the early treatment with ampicillin and sulphonamide, in addition to adequate surgical debridement, is recommended in patient with compound depressed skull fractures in 176 patients with FCCD. Ali and Ghosh [2] commented that the incidence of infectious complications other than meningitis in the non-antibiotic group was higher than in the group given antibiotics. There are some literatures that the benefit of prophylactic antibiotics in the FCCD could not be proved. Prakash et al. [16] analyzed 453 patients with depressed skull fractures concluded that there was substantial data to support the use of prophylactic antibiotics in patients to reduce chances of infection with it. Haines examined that the evidence regarding antibiotic prophylaxis in five specific neurosurgical situations (clean surgical procedures, cerebrospinal fluid shunts, external venticulostomies, basilar skull fractures, and compound skull fractures) [8]. In addition, he concluded that it was unclear whether all patients with FCCD required antibiotic treatment [8]. Postoperatively, antibiotics were used for an average of 12.6 days. The mean WBC count remained within normal ranges pre- and postoperatively, and mean ESR and CRP count were slightly increased 7 days postoperatively and subsequently decreased. This temporary increase was not indicative of infection. There was no postoperative seizure or complications, such as infection or cerebrospinal fluid leakage, in all patients.

CONCLUSION

Based on the author’s surgical experience and review of previous literature, there is no doubt that immediate bone fragment replacement does not increase infectious sequelae compared to two-stage surgery with delayed cranioplasty. This suggests that the risk associated with surgery and economic, psychological, and cosmetic burden of the second surgery is avoided. Although more well-controlled studies may be needed, the treatment strategy of FCCD may be changed to a primary single-stage surgery with immediate reconstruction rather than a traditional two-stage surgery.

Notes

No potential conflict of interest relevant to this article was reported.

INFORMED CONSENT

Although this type of study does not require informed consent, informed consent was obtained from patient No. 15 for illustrative case.

AUTHOR CONTRIBUTIONS

Conceptualization : KSE

Data curation : KSE

Formal analysis : KSE

Funding acquisition : KSE

Methodology : KSE

Project administration : KSE

Visualization : KSE

Writing - original draft : KSE

Writing - review & editing : KSE

Acknowledgements

This paper was supported by Wonkwang University in 2019.

References

1. Adeloye A, Shokunbi MT. Immediate bone replacement in compound depressed skull fractures. Cent Afr J Med 39:70–73. 1993;
2. Ali B, Ghosh A. Antibiotics in compound depressed skull fractures. Emerg Med J 19:552–553. 2002;
3. Blankenship JB, Chadduck WM, Boop FA. Repair of compound-depressed skull fractures in children with replacement of bone fragments. Pediatr Neurosurg 16:297–300. 1990-1991;
4. Braakman R. Depressed skull fracture: data, treatment, and follow-up in 225 consecutive cases. J Neurol Neurosurg Psychiatry 35:395–402. 1972;
5. Bullock MR, Chesnut R, Ghajar J, Gordon D, Hartl R, Newell DW, et al. Surgical management of depressed cranial fractures. Neurosurgery 58(3 Suppl):S56–S60. discussion Si-Siv. 2006;
6. Ehrlich G, Kindling S, Wenz H, Hänggi D, Schulte DM, Schmiedek P, et al. Immediate titanium mesh implantation for patients with postcraniotomy neurosurgical site infections: safe and aesthetic alternative procedure? World Neurosurg 99:491–499. 2017;
7. Eppley BL. Biomechanical testing of alloplastic PMMA cranioplasty materials. J Craniofac Surg 16:140–143. 2005;
8. Haines SJ. Systemic antibiotic prophylaxis in neurological surgery. Neurosurgery 6:355–361. 1980;
9. Haynes WG. Extensive brain wounds; analysis of 159 cases occurring in a series of 342 penetrating war wounds of the brain. J Neurosurg 2:469–478. 1945;
10. Hubschmann O, Shapiro K, Baden M, Shulman K. Craniocerebral gunshot injuries in civilian practice--prognostic criteria and surgical management: experience with 82 cases. J Trauma 19:6–12. 1979;
11. Jennett B, Miller JD. Infection after depressed fracture of skull. Implications for management of nonmissile injuries. J Neurosurg 36:333–339. 1972;
12. Kerr RG, Hearst MJ, Samy RN, van Loveren HR, Tew JM Jr, Pensak ML, et al. Delayed extrusion of hydroxyapatite cement after transpetrosal reconstruction. Neurosurgery 64:527–531. discussion 531-532. 2009;
13. Korovessis P, Petsinis G, Koureas G, Iliopoulos P, Zacharatos S. Anterior surgery with insertion of titanium mesh cage and posterior instrumented fusion performed sequentially on the same day under one anesthesia for septic spondylitis of thoracolumbar spine: is the use of titanium mesh cages safe? Spine (Phila Pa 1976) 31:1014–1019. 2006;
14. Marbacher S, Andres RH, Fathi AR, Fandino J. Primary reconstruction of open depressed skull fractures with titanium mesh. J Craniofac Surg 19:490–495. 2008;
15. Mendelow AD, Campbell D, Tsementzis SA, Cowie RA, Harris P, Durie TB, et al. Prophylactic antimicrobial management of compound depressed skull fracture. J R Coll Surg Edinb 28:80–83. 1983;
16. Prakash A, Harsh V, Gupta U, Kumar J, Kumar A. Depressed fractures of skull: an institutional series of 453 patients and brief review of literature. Asian J Neurosurg 13:222–226. 2018;
17. Small JM, Turner EA. A surgical experience of 1200 cases of penetrating brain wounds in battle, N. W. Europe, 1944-45. Br J Surg 55(Suppl 1):62–74. 1947;
18. Wind JJ, Ohaegbulam C, Iwamoto FM, Black PM, Park JK. Immediate titanium mesh cranioplasty for treatment of postcraniotomy infections. World Neurosurg 79:207.e11–e13. 2013;
19. Wylen EL, Willis BK, Nanda A. Infection rate with replacement of bone fragment in compound depressed skull fractures. Surg Neurol 51:452–457. 1999;

Article information Continued

Fig. 1.

A-C : Preoperative cranial computed tomography showing the comminuted depressed fractures of the right frontal bone, a Le Fort type I and III comminuted fracture of the midfacial bones, and traumatic intracranial hematoma in the right frontal lobe with pneumocephalus.

Fig. 2.

A-C : Postoperative cranial computed tomography showing that fragmented bones and hematoma were removed, and the bony defect was reconstructed using titanium mesh and microscrews.

Fig. 3.

A-C : Cranial computed tomography after 4 months showing well-fixed titanium mesh along the periphery of the bony defect without additional abnormality.

Fig. 4.

Preoperative and postoperative cranial CT of patients with fractures of orbital bone. CT : computed tomography.

Table 1.

Demographic and radiological characteristics of patients with FCCD of the skull

Patient No. Age (years) Sex Cause of injury Time interval (minutes)
GCS score
Hospital stay (days) FCCD
Associated lesion Injury of the paranasal sinus
From injury to ER From ER to surgery Adm Dis Location H×V×D (mm)
1 36 M Fall 95 365 15 15 21 Frontal* 22×18×2 TICH Yes
2 56 M Direct impact 68 180 15 15 13 Parietal 41×48×17 AEDH No
3 66 M Slip 86 44 15 15 21 Parietal 32×18×10 TSAH No
4 62 M Fall 205 186 15 15 15 Frontal* 41×36×8 None Yes
5 55 F Direct impact 53 217 14 15 11 Occipital 29×30×7 TSAH No
6 37 M Passenger TA 62 744 14 15 31 Parietal 58×21×7 None No
7 76 M Fall 317 223 15 15 14 Temporal 52×48×10 None No
8 70 M Direct impact 52 178 15 15 11 Frontal 26×21×10 ASDH Yes
9 44 M Direct impact 86 567 15 15 16 Parietal 19×18×23 TSAH No
10 51 M Motorcycle TA 27 165 13 14 17 Frontal 48×42×3 AEDH No
11 54 M Direct impact 55 190 15 15 12 Frontal 25×36×6 None Yes
12 31 M Slip 33 360 15 15 21 Frontal* 38×33×8 AEDH Yes
13 28 M Slip 394 103 15 15 8 Frontal 28×24×10 None No
14 53 M Passenger TA 166 281 14 14 20 Frontal* 51×48×9 TICH Yes
15 54 M Passenger TA 175 755 14 14 32 Frontal* 58×45×17 TICH Yes
16 60 M Direct impact 142 158 15 15 9 Parietal 27×18×19 TSAH No
17 31 M Direct impact 42 749 14 15 16 Frontal 46×33×15 TICH Yes
18 46 M Motorcycle TA 76 113 9 15 33 Frontal 21×42×7 TICH No
19 47 M Fall 38 219 8 10 14 Parietal 37×30×10 TSAH No
*

In case of fractures of orbital bone.

FCCD : compound comminuted depressed fracture, ER : emergency room, GCS : Glasgow coma scale, Adm : admission, Dis : discharge, H : horizontal, V : vertical, D : depth, M : male, TICH : traumatic intracranial hemorrhage, AEDH : acute epidural hematoma, TSAH : traumatic subarachnoid hemorrhage, F : female, TA : traffic accident, ASDH : acute subdural hematoma

Table 2.

Characteristics associated with surgery and infection of patients with FCCD of the skull

Patient No. Dural tear Period of postop. antibiotics (day) Inflammatory markers and BT
Postop. complication
Preop.
POD 7
POD 14
WBC* (/μL) ESR (mm/h) CRP (mg/L) BT (℃) WBC* (/μL) ESR (mm/h) CRP (mg/L) BT (℃) WBC* (/μL) ESR (mm/h) CRP (mg/L) BT (℃)
1 Yes 18 13910 5 1.89 36.5 9440 13 5.19 37.2 9530 3 2.14 36.4 None
2 No 6 10710 5 0.65 37 6190 15 3.29 37.1 5410 4 0.89 36.9 None
3 No 21 17180 9 22.47 37.1 9400 16 26.19 37.1 7890 13 13.58 36.2 None
4 No 14 23240 2 0.99 36.7 16460 20 30.56 37.6 8210 22 15.69 36.8 None
5 No 10 25280 2 1.11 36.2 7490 49 49.65 37.1 7310 38 22.06 36.9 None
6 No 11 23330 2 2.64 37.8 10000 25 27.37 38.5 5980 17 2.46 36.9 None
7 Yes 13 12080 26 4.18 37.2 7390 51 13.75 36.9 8280 40 5.8 36.7 None
8 No 11 6790 7 0.97 37 4470 26 4.89 37.1 4690 16 3.94 37 None
9 No 6 5910 2 0.26 37.2 4810 14 4.46 36.8 4830 5 0.54 36.2 None
10 Yes 21 46970 2 0.24 37.1 8570 20 27.92 37.3 8580 28 2.49 37 None
11 Yes 12 7780 3 0.34 36.6 6560 19 3.37 37.4 5400 18 0.96 36.4 None
12 No 8 15500 2 0.56 37.2 10900 17 8.29 37.5 9300 12 13.12 36.8 None
13 No 8 7740 17 18.68 36.2 9510 15 7.83 36.5 5560 32 4.29 36.9 None
14 No 9 6910 13 0.86 36.7 4870 52 1.73 37.3 3000 47 2.72 38.1 None
15 Yes 18 17430 36 0.15 36.9 10640 49 47.82 38.4 9530 26 37.24 36.4 None
16 No 7 6800 5 1.21 36.4 12490 6 1.21 37.1 5400 18 3.54 36.5 None
17 Yes 14 9480 2 3.77 36.8 8140 27 29.61 37.4 8450 19 7.33 37.3 None
18 Yes 19 16530 2 0.28 37.1 8140 53 48.2 36.6 8460 38 4.85 36.6 None
19 Yes 14 15230 2 1.61 37.4 14190 28 77.26 36.4 12050 11 40.85 36.6 None
*

Normal range : 4000–10000/μL.

Normal range : 0–20 mm/h.

Normal range : 0–5 mg/L.

FCCD : compound comminuted depressed fracture, postop. : postoperative, preop. : preoperative, WBC : white blood cell, ESR : erythrocyte sedimentation rate, CRP : C-reactive protein, BT : body temperature, POD : postoperative day