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Emanuels AF, Cherukuri S, Van Gompel JJ, Stokken J, Mardini S, Gibreel W. Staged Intracranial Free Tissue Transfer and Cranioplasty for a Refractory Nasal-cranial Base Fistula. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2023; 11:e5392. [PMID: 37954215 PMCID: PMC10635610 DOI: 10.1097/gox.0000000000005392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/14/2023] [Indexed: 11/14/2023]
Abstract
After a transnasal endoscopic resection of a high-grade adenoid cystic carcinoma that underwent adjuvant chemoradiation, there was delayed recurrence managed by en bloc resection through an open craniofacial approach. Subsequently, the patient developed a chronic nasocranial fistula with secondary infection and bone flap resorption. This resulted in infectious episodes with secondary scalp incisional dehiscence and hardware exposure which required multiple bone debridement procedures, hardware removal, prolonged IV antibiotics, and hyperbaric oxygen treatment. The nasocranial fistula and chronic frontal bone osteomyelitis persisted despite the previous interventions. The patient underwent a frontal bone removal and obliteration of the anterior cranial base fistula with a free vastus lateralis muscle flap. At 4 weeks postoperatively, the intranasal portion of the muscle flap had completely mucosalized. After a 6-week course of IV antibiotics, a secondary cranioplasty using a custom-made poly-ether-ether-ketone implant was performed. The patient remained disease- and infection-free for the duration of follow-up (17 months).
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Affiliation(s)
- Andrew F. Emanuels
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
| | - Sai Cherukuri
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
| | | | | | - Samir Mardini
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
| | - Waleed Gibreel
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
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Chang KW, Zhong LM, Lee DS, Puram SV, Jackson RS, Yaeger LH, Pipkorn P. Outcomes of Mesh Cranioplasty in Scalp-Free Tissue Reconstruction: A Systematic Review and Meta-Analysis. Otolaryngol Head Neck Surg 2023; 168:970-978. [PMID: 36939541 DOI: 10.1002/ohn.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/12/2022] [Accepted: 10/23/2022] [Indexed: 01/27/2023]
Abstract
OBJECTIVE To systematically review the literature to determine the prevalence and risk of the free flap and postoperative complications in scalp-free tissue reconstruction with synthetic mesh cranioplasty. DATA SOURCES Search strategies created with a medical librarian were implemented using multiple databases in May 2021. REVIEW METHODS Two reviewers independently performed the review, data extraction, and quality assessment. Cohort studies of patients with scalp-free tissue reconstruction with or without mesh cranioplasty were included. Studies that did not report whether mesh was used or did not separate outcomes by mesh use were excluded. The primary outcomes were free flap failure and postoperative complications. A random-effects model was used for the meta-analysis to estimate prevalence and prevalence ratios (PRs). RESULTS A total of 28 studies and 440 cases of scalp-free tissue reconstruction were included. The pooled prevalence of free flap failures and postoperative complications in patients with mesh cranioplasty was estimated at 7% (95% confidence interval [CI], 3%-17%; p = .85, I2 = 0%) and 21% (95% CI, 14%-31%; p = .44, I2 = 0%), respectively. In a subgroup analysis, mesh cranioplasty was not associated with a significantly increased risk of free flap failure or postoperative complications when compared to cases without mesh cranioplasty; pooled PR 1.21 (95% CI, 0.50-2.88; p = .90, I2 = 0%) for free flap failure and PR 1.85 (95% CI, 0.89-3.85; p = .28, I2 = 19) for postoperative complications. CONCLUSION Synthetic mesh cranioplasty does not significantly increase the risk of free flap compromise or postoperative complications. A higher prevalence of postoperative recipient site complications was observed in patients with mesh cranioplasty.
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Affiliation(s)
- Katherine W Chang
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri, USA
| | - Lydia M Zhong
- Washington University School of Medicine, St Louis, Missouri, USA
| | - David S Lee
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri, USA
| | - Sidharth V Puram
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri, USA.,Department of Genetics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Ryan S Jackson
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri, USA
| | - Lauren H Yaeger
- Bernard Becker Medical Library, Washington University School of Medicine, St Louis, Missouri, USA
| | - Patrik Pipkorn
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri, USA
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Lo AY, Yu RP, Raghuram AC, Cooper MN, Thompson HJ, Liu CY, Wong AK. Tissue Expanders in Staged Calvarial Reconstruction: A Systematic Review. Arch Plast Surg 2022; 49:729-739. [PMID: 36523916 PMCID: PMC9747287 DOI: 10.1055/s-0042-1751104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 03/25/2022] [Indexed: 12/15/2022] Open
Abstract
Cranioplasties are common procedures in plastic surgery. The use of tissue expansion (TE) in staged cranioplasties is less common. We present two cases of cranioplasties with TE and systematically review literature describing the use of TE in staged cranioplasties and postoperative outcomes. A systematic review was performed by querying multiple databases. Eligible articles include published case series, retrospective reviews, and systematic reviews that described use of TE for staged bony cranioplasty. Data regarding study size, patient demographics, preoperative characteristics, staged procedure characteristics, and postoperative outcomes were collected. Of 755 identified publications, 26 met inclusion criteria. 85 patients underwent a staged cranioplasty with TE. Average defect size was 122 cm 2 , and 30.9% of patients received a previous reconstruction. Average expansion period was 14.2 weeks. The most common soft tissue closures were performed with skin expansion only (75.3%), free/pedicled flap (20.1%), and skin graft (4.7%). The mean postoperative follow-up time was 23.9 months. Overall infection and local complication rates were 3.53 and 9.41%, respectively. The most common complications were cerebrospinal fluid leak (7.1%), hematoma (7.1%), implant exposure (3.5%), and infection (3.5%). Factors associated with higher complication rates include the following: use of alloplastic calvarial implants and defects of congenital etiology ( p = 0.023 and 0.035, respectively). This is the first comprehensive review to describe current practices and outcomes in staged cranioplasty with TE. Adequate soft tissue coverage contributes to successful cranioplasties and TE can play a safe and effective role in selected cases.
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Affiliation(s)
- Andrea Y. Lo
- Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of South California, Los Angeles, California
| | - Roy P. Yu
- Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of South California, Los Angeles, California
| | - Anjali C. Raghuram
- Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of South California, Los Angeles, California
| | - Michael N. Cooper
- Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of South California, Los Angeles, California
| | - Holly J. Thompson
- Wilson Dental Library, Herman Ostrow School of Dentistry of University of South California, Los Angeles, California
| | - Charles Y. Liu
- Department of Neurological Surgery, Keck School of Medicine of University of South California, Los Angeles, California
| | - Alex K. Wong
- Division of Plastic and Reconstructive Surgery, Keck School of Medicine of University of South California, Los Angeles, California,Division of Plastic Surgery, City of Hope National Medical Center, Duarte, California,Address for correspondence Alex K. Wong, MD 1500 East Duarte RoadDuarte, CA 91010
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Sinclair S, Zhou K, Yip JM, Aggarwal S, Jukes A, Clark JR, Shivalingham B, Ch'ng S. Microsurgical scalp reconstruction and cranioplasty refined. AUSTRALASIAN JOURNAL OF PLASTIC SURGERY 2022. [DOI: 10.34239/ajops.v5n1.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Introduction: Microsurgical free flap scalp reconstruction is commonly the only reconstructive option in certain challenging patient cohorts. We describe the technical refinements that have streamlined our ap-proach to microsurgical scalp reconstruction and cranioplasty.
Methods: Virtual surgical planning for multiple failed cranioplasty cases involves fashioning an implant with a 3 mm offset. Intramuscular dissection of the latissimus dorsi (LD) vascular pedicle, distal to its bifurcation, is routinely performed, and can increase pedicle length by up to 4 cm without the need for tedious dissec-tion in the axilla. Anastomoses to the superficial temporal vessels distal to their bifurcation in the parietal scalp are reliable and safe. The sequence of surgery is in reverse to the conventional sequence, with the free flap vascularised before craniectomy/cranioplasty is performed to decrease the duration of synthetic im-plant exposure.
Results: Thirty-nine cases were performed in 35 patients over a five-year period. An LD-based free flap in various permutations was the commonest free flap option (n = 31). The superficial temporal artery and vein were choice recipient vessels in 82 per cent and 74 per cent of cases, respectively, with the former demon-strating higher anatomical consistency. Complications included free flap venous congestion successfully salvaged (n = 1), infected polymethylmethacrylate cranioplasty requiring explantation (n = 1), subdural haematoma requiring craniotomy for evacuation (n = 1) and free flap donor site haematoma (n = 2).
Conclusion: Our technical refinements offer a streamlined and reliable procedure of complex scalp recon-struction and cranioplasty.
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Han Y, Chen Y, Han Y, Chen Z, Li L, Pu W, Cui L, Chai M, Li Y. The use of free myocutaneous flap and implant reinsertion for staged cranial reconstruction in patients with titanium mesh exposure and large skull defects with soft tissue infection after cranioplasty: Report of 19 cases. Microsurgery 2021; 41:637-644. [PMID: 34473372 DOI: 10.1002/micr.30800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 08/01/2021] [Accepted: 08/19/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND Management of cranial defects following failed cranioplasty due to titanium mesh exposure and infection is challenging. The purpose of this report is to describe a modified technique using a free myocutaneous flap transfer for primary soft tissue reconstruction, and titanium mesh reinsertion for cranioplasty revision. METHODS Nineteen patients with titanium mesh exposure and infection following cranioplasty were treated from January 2012 to January 2019. The average patient age was 41.89 years and the average size of the cranial defect was 7.74 × 13.92 cm. The reasons for craniotomy were craniocerebral trauma (n = 17), cerebrovascular disease (n = 1), and brain tumor (n = 1). The mean duration between implant exposure and current procedure was 7.16 months. Implant was removed and a free myocutaneous flap was designed to cover both scalp and cranium defects. After a mean duration of 12.32 months, implants were re-inserted in a vascularized pocket at the second stage by elevating a plane between the previously transferred fascia layer and muscle layer. RESULTS The average sizes of the muscle flaps and skin paddles were 7.74 × 13.92 cm and 4.97 × 8.97 cm. The average size of the implants was 8.24 × 14.42 cm. All flaps survived completely with no complication. After an average follow-up of 48.16 months there were no cranioplasty failures. Functional coverage of craniectomy defect sites with normalized head contour was achieved. CONCLUSIONS The use of free myocutaneous flap and implant reinsertion achieved durable cranial and scalp defect reconstruction and aesthetic outcomes. The myocutaneous flap increases blood supply to the scalp, which may reduce the chances of infection and implant re-exposure.
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Affiliation(s)
- Yudi Han
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Youbai Chen
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Yan Han
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Zhaoyang Chen
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China.,Graduate School, Medical College of Chinese PLA, Beijing, China
| | - Liangxing Li
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China.,Graduate School, Medical College of Chinese PLA, Beijing, China
| | - Wenwen Pu
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Lei Cui
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Mi Chai
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China
| | - Yan Li
- Department of Plastic and Reconstructive Surgery, First Medical Center of PLA General Hospital, Beijing, China.,Graduate School, Medical College of Chinese PLA, Beijing, China
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Systematic Review of Tissue Expansion: Utilization in Non-breast Applications. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2021; 9:e3378. [PMID: 33564595 PMCID: PMC7862073 DOI: 10.1097/gox.0000000000003378] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/23/2020] [Indexed: 02/06/2023]
Abstract
Background Tissue expansion is a versatile reconstructive technique providing well-vascularized local tissue. The current literature focuses largely on tissue expansion for breast reconstruction and in the context of burn and pediatric skin/soft tissue replacement; however, less traditional applications are also prevalent. The aim of this study was to systematically review the utilization of tissue expansion in such less well-characterized circumstances. Methods The authors conducted a systematic review of all publications describing non-breast applications of tissue expansion. Variables regarding expander specifications, expansion process, and complications were collected and further analyzed. Results A total of 565 publications were identified. Of these, 166 publications described tissue expansion for "less traditional" indications, which fell into 5 categories: ear reconstruction, cranioplasty, abdominal wall reconstruction, orthopedic procedures, and genital (penile/scrotal and vaginal/vulva) reconstruction. While lower extremity expansion is known to have high complication rates, tissue expander failure, infection, and exposure rates were in fact highest for penile/scrotal (failure: 18.5%; infection: 15.5%; exposure: 12.5%) and vaginal/vulva (failure: 20.6%; infection: 10.3%; exposure: 6.9%) reconstruction. Conclusions Tissue expansion enables index operations by providing additional skin before definitive reconstruction. Tissue expanders are a valuable option along the reconstructive ladder because they obviate the need for free tissue transfer. Although tissue expansion comes with inherent risk, aggregate outcome failures of the final reconstruction are similar to published rates of complications without pre-expansion. Thus, although tissue expansion requires a staged approach, it remains a valuable option in facilitating a variety of reconstructive procedures.
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Modified Cranioplasty and Latissimus Dorsi Flap for an Exophytic Invasive Brain Tumor. J Craniofac Surg 2020; 32:1838-1840. [PMID: 33196617 DOI: 10.1097/scs.0000000000007225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
ABSTRACT We describe the clinical case of a 62-year-old man with an atypical grade II meningioma, invading bone and scalp, and present a step-by-step video description of a modified technique for cranioplasty and scalp reconstruction with latissimus dorsi flap. By using this technique, we aim to minimize the space between the dura and the flap, which would decrease the risk of fluid collections and infections.
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Kwarcinski J, Boughton P, van Gelder J, Damodaran O, Doolan A, Ruys A. Clinical evaluation of rapid 3D print-formed implants for surgical reconstruction of large cranial defects. ANZ J Surg 2020; 91:1226-1232. [PMID: 33021022 DOI: 10.1111/ans.16361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND To clinically evaluate 3D print-formed implant process, using cranioplasty as a proof of concept, to examine its effectiveness and utility as a method of intraoperative implant fabrication. METHODS Twelve patients had a 3D print-formed template created for patient-specific implant manufacture. Of these patients, 10 received intraoperatively formed polymethylmethacrylate cranioplasty implants between 2013 and 2019. The 3D print-formed implant templates produced to manufacture these patient-specific implants were generated using patient computed tomography scans and 3D printed using fused deposition modelling technology. Cosmetic and functional results were determined by participating surgeons, in conjunction with a patient questionnaire. RESULTS The functional results and stability of the implants were deemed to be favourable by participating surgeons. Three of the 10 patients completed a post-cranioplasty survey, all of whom judged their cosmetic results as good or excellent. At time of writing, the rate of surgical revision was zero and without clinically adverse outcomes. CONCLUSIONS 3D print-formed implants are an effective method of patient-specific implant formation.
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Affiliation(s)
- Jeremy Kwarcinski
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia.,Discipline of Surgery, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Sydney Spine Institute, Burwood, New South Wales, Australia
| | - Philip Boughton
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia.,Sydney Spine Institute, Burwood, New South Wales, Australia
| | - James van Gelder
- Sydney Spine Institute, Burwood, New South Wales, Australia.,Neurosurgery Department, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Omprakash Damodaran
- Sydney Spine Institute, Burwood, New South Wales, Australia.,Neurosurgery Department, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Alessandra Doolan
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Andrew Ruys
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia
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Bender-Heine A, Young G, Moy J, Weedman S, Wax MK. Application of the Spider Limb Positioner to Subscapular System Free Flaps. Laryngoscope 2020; 131:525-528. [PMID: 32833233 DOI: 10.1002/lary.29031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/14/2020] [Accepted: 07/27/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To demonstrate the application and surgical time savings of the Spider Limb Positioner for subscapular system free flaps in head and neck reconstructive surgery. METHODS Single institution retrospective chart review and analysis of patients between 2011 and 2019 that underwent a subscapular system free flap either with or without use of the Spider Limb Positioner. One hundred five patients in total were reviewed with 53 patients in the Spider group. The surgical times were compared between the two groups. Patient-specific information regarding average age, laterality of donor site, recipient site, gender, and flap type were reviewed. RESULTS Forty-one patients in both groups underwent a latissimus free flap. Twelve of 53 in the Spider group and 11/52 in the control group underwent a scapula free flap. The average age in the Spider group at the time of surgery was 64 years. The recipient sites for the Spider groups were reviewed. The free flap was ipsilateral to the defect in 81% of cases. The mean surgical time for the 105 patients without the Spider was 568 minutes versus 486 minutes with a Spider P-value of .003478. CONCLUSION Use of the Spider Limb Positioner allows for a simultaneous two-team approach during free flap elevation of the subscapular system, which eliminates both dependence on an assistant to support the arm and time consuming positioning changes during flap elevation. LEVEL OF EVIDENCE 3 Laryngoscope, 131:525-528, 2021.
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Affiliation(s)
- Adam Bender-Heine
- Department of Otolaryngology, Oregon Health & Science University, Portland, Oregon, U.S.A
| | - Gavin Young
- School of Medicine, Oregon Health & Science University, Portland, Oregon, U.S.A
| | - Jennifer Moy
- Department of Otolaryngology, Oregon Health & Science University, Portland, Oregon, U.S.A
| | - Savannah Weedman
- Banner MD Anderson Cancer Center Clinic, Gilbert, Arizona, U.S.A
| | - Mark K Wax
- Department of Otolaryngology, Oregon Health & Science University, Portland, Oregon, U.S.A
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The Trendelenburg Test: Simple Method to Avoid Wound Healing Complications after Cranioplasty. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 7:e2405. [PMID: 31942384 PMCID: PMC6908403 DOI: 10.1097/gox.0000000000002405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Autogenous Bone Cranioplasty: Review of a 42-Year Experience by a Single Surgeon. Plast Reconstr Surg 2019; 143:1713-1723. [PMID: 31136489 DOI: 10.1097/prs.0000000000005677] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Autogenous bone is frequently espoused as the gold standard material for cranioplasty procedures, yet alloplastic cranioplasty continues to persist in the search, presumably, for a simpler technique. Although short-term outcomes can be successful using foreign materials, long-term follow-up in these patients often demonstrates increased rates of failure because of exposure or late infection. Autogenous bone grafts, however, integrate and revascularize, and are thus more resistant to infection than alloplastic materials. METHODS This is a retrospective review of all patients that underwent reconstructive cranioplasty for full-thickness defects, as performed by the senior author (S.A.W.) between 1975 and 2018. All procedures were performed with autogenous bone. RESULTS One hundred fifty-four patients met criteria for inclusion in the report. Cranioplasties were performed for both congenital and secondary indications. Split calvaria was used in 115 patients (74.7 percent), rib graft was used in 12 patients (7.8 percent), iliac crest graft was used in 10 patients (6.5 percent), and combinations of donor-site grafts were used in 17 patients (11.0 percent). In the entire series, none of the patients suffered from complications related to infection of either the donor site or transferred bone graft. None of the patients required secondary operations to fill in defects created by the postoperative resorption. CONCLUSIONS Although autologous bone is widely considered the gold standard material for cranioplasty procedures, some argue against its use, mainly citing unpredictable resorption as the purported disadvantage. However, it is less susceptible to infection, and results in fewer long-term complications than alloplastic materials. There is no alloplastic material that has matched these outcomes, and thus autogenous bone should be considered as the primary option for cranioplasty procedures. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, IV.
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Zhang J, Tian W, Chen J, Yu J, Zhang J, Chen J. The application of polyetheretherketone (PEEK) implants in cranioplasty. Brain Res Bull 2019; 153:143-149. [PMID: 31425730 DOI: 10.1016/j.brainresbull.2019.08.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/19/2019] [Accepted: 08/13/2019] [Indexed: 02/06/2023]
Abstract
Cranioplasty is a challenge to neurosurgeons, especially considering protection of intracranial contents. In recent years, material choice for cranioplasty is still controversial, which brings complexity to this seemingly straightforward procedure. PEEK, a tough, rigid, biocompatible material, has been used more recently in cranioplasty to provide better protection. The aim of this review is to summarize the outcome of research conducted on the material for cranioplasty applications. We also reviewed the comparison of PEEK with several common materials in previous articles. This is also the most complete data review article at present. In addition, the combination of nano-materials and PEEK is also a hotspot of research, so we have made a careful review of this aspect. We also summarized our own experience, telling about the future prospects of PEEK in the field of clinical cranioplasty should be highlighted. Improving the bioactivity, porosity, thinning, biocompatibility, antibacterial ability, integration and cost reduction of PEEK implants without affecting their mechanical properties is a major challenge.
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Affiliation(s)
- Jibo Zhang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Weiqun Tian
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jiayi Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jin Yu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jianjian Zhang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
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Chen Y, Zhang L, Qin T, Wang Z, Li Y, Gu B. Evaluation of neurosurgical implant infection rates and associated pathogens: evidence from 1118 postoperative infections. Neurosurg Focus 2019; 47:E6. [DOI: 10.3171/2019.5.focus18582] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 05/22/2019] [Indexed: 01/01/2023]
Abstract
OBJECTIVEVarious implanted materials are used in neurosurgery; however, there remains a lack of pooled data on infection rates (IRs) and infective bacteria over past decades. The goal of this study was to investigate implant infections in neurosurgical procedures in a longitudinal retrospective study and to evaluate the IRs of neurosurgically implanted materials and the distribution of pathogenic microorganisms.METHODSA systematic literature search was conducted using PubMed and Web of Science databases for the time period between 1968 and 2018. Neurosurgical implant infections were studied in 5 subgroups, including operations or diseases, implanted materials, bacteria, distribution by country, and time periods, which were obtained from the literature and statistically analyzed. In this meta-analysis, statistical heterogeneity across studies was tested by using p values and I2 values between studies of associated pathogens. Egger’s test was used for assessing symmetries of funnel plots with Stata 11.0 software. Methodological quality was assessed to judge the risk of bias according to the Cochrane Handbook.RESULTSA total of 22,971 patients from 227 articles satisfied the study’s eligibility criteria. Of these, 1118 cases of infection were reported, and the overall IR was 4.87%. In this study, the neurosurgical procedures or disorders with the top 3 IRs included craniotomy (IR 6.58%), cranioplasty (IR 5.89%), and motor movement disorders (IR 5.43%). Among 13 implanted materials, the implants with the top 3 IRs included polypropylene-polyester, titanium, and polyetheretherketone (PEEK), which were 8.11%, 8.15%, and 7.31%, respectively. Furthermore, the main causative pathogen was Staphylococcus aureus and the countries with the top 3 IRs were Denmark (IR 11.90%), Korea (IR 10.98%), and Mexico (IR 9.26%). Except for the low IR from 1998 to 2007, the overall implant IR after neurosurgical procedures was on the rise.CONCLUSIONSIn this study, the main pathogen in neurosurgery was S. aureus, which can provide a certain reference for the clinic. In addition, the IRs of polypropylene-polyester, titanium, and PEEK were higher than other materials, which means that more attention should be paid to them. In short, the total IR was high in neurosurgical implants and should be taken seriously.
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Affiliation(s)
- Ying Chen
- 1Department of Microbiology and Immunology, School of Medical Technology, Xuzhou Medical University; and
| | - Linyan Zhang
- 1Department of Microbiology and Immunology, School of Medical Technology, Xuzhou Medical University; and
| | - Tingting Qin
- 2Clinical Microbiology Laboratory, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zhenzhen Wang
- 1Department of Microbiology and Immunology, School of Medical Technology, Xuzhou Medical University; and
| | - Ying Li
- 1Department of Microbiology and Immunology, School of Medical Technology, Xuzhou Medical University; and
| | - Bing Gu
- 1Department of Microbiology and Immunology, School of Medical Technology, Xuzhou Medical University; and
- 2Clinical Microbiology Laboratory, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Discussion: The Timing of Alloplastic Cranioplasty in the Setting of Previous Osteomyelitis. Plast Reconstr Surg 2019; 143:862-863. [PMID: 30817660 DOI: 10.1097/prs.0000000000005388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kim SH, Lee SJ, Lee JW, Jeong HS, Suh IS. Staged reconstruction of large skull defects with soft tissue infection after craniectomy using free flap and cranioplasty with a custom-made titanium mesh constructed by 3D-CT-guided 3D printing technology: Two case reports. Medicine (Baltimore) 2019; 98:e13864. [PMID: 30732124 PMCID: PMC6380826 DOI: 10.1097/md.0000000000013864] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
RATIONALE A craniectomy, which results in a large skull defect, is performed to decrease the intracranial pressure under conditions such as intracranial hemorrhage and ischemic stroke. When the patient's condition is stabilized, autologous cranioplasty using the bone flap previously removed in the craniectomy is performed. Bone flap infection after the autologous cranioplasty is not uncommon and is difficult to treat. After the infection is controlled, cranioplasty is needed to improve the head deformity and neurologic function. Cranioplasty with a titanium mesh can result in aesthetic improvement and a low infection rate. Using 3-dimensional computed tomography (3D-CT) and 3D printing, titanium mesh is manufactured to fit perfectly on the patient's skull defect. PATIENT CONCERNS Two patients with large skull defects in the right temple area due to previous craniectomy were referred to our department for reconstruction. They had histories of recurrent infections at the operation site even after removal of the autologous bone flap that had been used for the cranioplasty. DIAGNOSIS Preoperative computed tomography (CT) showed 12×16 cm and 8×8.3 cm skull defect on right temporal area, respectively. INTERVENTIONS AND OUTCOME The infection was controlled by well-vascularized free flap coverage. After the surgery, cranioplasty with custom-made titanium mesh was performed to improve the aesthetic and functional problems of the patients. The contour of the temporal area was symmetric. The patients were satisfied with the results. LESSONS Staged reconstruction of large skull defects with soft tissue infection after craniectomy using free flap followed by cranioplasty with titanium mesh on can lead to safe, aesthetic, and satisfactory result.
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Musavi L, Macmillan A, Lopez J, Dorafshar AH. Using Computer-Aided Design/Computer-Aided Manufacturing for Autogenous, Split Calvarial Bone Graft-based Cranioplasty. J Craniofac Surg 2019; 30:347-351. [DOI: 10.1097/scs.0000000000005010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Discussion: Reconstruction of Secondary Calvarial Defects with Ex Situ Split Calvarial Bone Grafts: Long-Term Evaluation of Outcomes. Plast Reconstr Surg 2018; 143:234-235. [PMID: 30589798 DOI: 10.1097/prs.0000000000005130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Autologous Bone Is Inferior to Alloplastic Cranioplasties: Safety of Autograft and Allograft Materials for Cranioplasties, a Systematic Review. World Neurosurg 2018; 117:443-452.e8. [DOI: 10.1016/j.wneu.2018.05.193] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 11/19/2022]
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Sun H, Wang H, Diao Y, Tu Y, Li X, Zhao W, Ren J, Zhang S. Large retrospective study of artificial dura substitute in patients with traumatic brain injury undergo decompressive craniectomy. Brain Behav 2018; 8:e00907. [PMID: 29761002 PMCID: PMC5943738 DOI: 10.1002/brb3.907] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/26/2017] [Accepted: 11/09/2017] [Indexed: 12/16/2022] Open
Abstract
Background Decompressive craniectomy is widely used for treating patients with traumatic brain injury (TBI). Usually patients have dura mater defect due to surgery or injury itself. The defective area may left open or repaired by artificial dura substitutes. A variety of artificial dura substitutes have been used for this purpose. Objective This study aimed to evaluate bovine-derived pericardium membrane as artificial dural material for patients with decompressive craniectomy. Methods Totally 387 patients with severe TBI in our hospital were included in this study. Among them, 192 patients were treated with standard decompressive craniectomy without dura repair (control group). One hundred and ninety-five TBI patients were treated with dura repair by artificial dura materials (ADM). Nonlyophilized bovine pericardium membranes were used as artificial dura material. The postoperative complications were compared in both groups, including infection, seizure, and cerebrospinal fluid (CSF) leakage. Results Patients in control group have higher complication rates than patients in ADM group, including subcutaneous hematoma (13.02% in control vs. 4.01% in ADM group, p = .004), infection (12.5% in control vs. 5.64% in ADM group, p = .021), CSF leakage (13.02% in control vs. 5.13% in ADM group, p = .012), and seizure (10.42% in control vs. 3.08% in ADM group, p = .007). Patients in ADM group are only associated with higher incidence of foreign body reaction (6 of 195 patients in ADM vs. none from control group). Conclusion Bovine-derived pericardium membranes are successfully used as artificial dural substitutes for decompressive craniectomy. Patients with ADM have better clinical outcome than control group.
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Affiliation(s)
- Hongtao Sun
- Sixth Department of Neurosurgery, Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Hongda Wang
- Division of Clinical MedicineChongqing Medical UniversityChongqingChina
| | - Yunfeng Diao
- Sixth Department of Neurosurgery, Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Yue Tu
- Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Xiaohong Li
- Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Wanyong Zhao
- Sixth Department of Neurosurgery, Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Jibin Ren
- Sixth Department of Neurosurgery, Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
| | - Sai Zhang
- Brain CenterAffiliated Hospital of Logistics University of People's Armed Police ForceTianjinChina
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Cranioplasty and Craniofacial Reconstruction: A Review of Implant Material, Manufacturing Method and Infection Risk. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7030276] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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