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Valente Aguiar P, Gonçalves M, Vaz R, Linhares P. A rare case of meningioma recurrence on a titanium mesh cranioplasty. Br J Neurosurg 2024; 38:1027-1030. [PMID: 34726561 DOI: 10.1080/02688697.2021.1995592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 10/14/2021] [Indexed: 10/19/2022]
Abstract
Cranioplasty with titanium mesh provides a stable and cosmetically sound option for the correction of extensive skull bone defects following trauma or tumour surgery with osseous involvement. Meningiomas are for the most part benign lesions that are amenable to surgical cure, however lesions with extradural extension pose additional challenges not only due to increased technical difficulty in achieving gross total resection but also because of distinct biological behaviour. We describe the case of a 43-years-old woman that had been submitted to gross total resection of a WHO grade I falcine and superior sagittal sinus secretory meningioma with extradural and bone extension and cranioplasty with a titanium mesh who had a recurrence 4 years later as two tumour masses on top of the titanium mesh with no adjacent soft tissue invasion, and without dural involvement. To our knowledge, this is the first reported case of meningioma growth on top of titanium cranioplasty material. Seeded or incompletely removed tumoral cells might have exploited the biocompatibility of titanium to promote tumour regrowth.
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Affiliation(s)
- Pedro Valente Aguiar
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Manuel Gonçalves
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rui Vaz
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Neurosciences Centre, Hospital CUF, Porto, Portugal
| | - Paulo Linhares
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Neurosciences Centre, Hospital CUF, Porto, Portugal
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2
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McGinnity-Hamze G, Hatamleh MM. Is Polyetheretherketone an Effective Alloplastic Material in Comparison to Titanium in Calvarial Reconstruction. J Craniofac Surg 2024; 35:1517-1522. [PMID: 38814081 DOI: 10.1097/scs.0000000000010335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 05/01/2024] [Indexed: 05/31/2024] Open
Abstract
INTRODUCTION AND AIM Polyetheretherketone (PEEK) and titanium (Ti) cranioplasty implants ideal outcomes are good esthetics, long-term stability, and protection of the fragile brain tissue. However, it is unclear whether PEEK implants can offer an equal alternative to Ti implants. This work aimed to critically review papers and case series published on both Ti and PEEK Cranioplasty regarding complications, clinical outcomes, ease of use, esthetics, manufacture and availability, cost and time-saving factors, postoperative quality of life (QOL), as well as their suitability for the fronto-orbito region reconstruction. METHODS PubMed database was sourced for published literature in the period 2007 to the end of 2023; a further manual search for articles was carried out on the reference lists of each paper. RESULTS A total of 48980 papers were found during the initial search, but only 33 articles met the inclusion criteria. A total of 6023 cranial implants, with 3879 being Ti and 1205 PEEK. Titanium was the material of choice in over 64.4% of cases; however, Ti has been in application for many years compared to PEEK. Out of the 33 papers, there was 27 retrospective cohort/analysis/case series and reviews: 1 meta-analysis, 2 systematic reviews and 3 randomized control trials. Four articles commented on the QOL, 15 on esthetics, 7 discussed cost and time-saving without measurable variables, and 7 articles looked explicitly at the complex fronto-orbito region, of which 49% were primary 1-stage surgical reconstructions, 54% were reconstructed with PEEK and 7% Ti (CAD/CAM). CONCLUSION There is no absolute consensus for the preference of either material, however, in the fronto-orbito region, PEEK is the material of choice for ease of use, esthetics, and time-saving. However, there are no long-term studies on PEEK cranioplasty, and fewer in comparison with Ti implants. Further research is required in this field. No reliable or measurable data was found to determine the QOL, esthetics, cost, or time-saving elements.
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Affiliation(s)
- Gráinne McGinnity-Hamze
- Cranio-Maxillofacial Prosthetics Unit, Department of Oral and Maxillofacial Surgery, King's College Hospital NHS Foundation Trust, London, UK
| | - Muhanad M Hatamleh
- Department of Allied Dental Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
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3
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Sanchez CV, Krag AE, Barnett S, Welch BG, Rozen SM. Polyetheretherketone Implant Cranioplasty for Large Cranial Defects: A Seven-Year Follow-Up. J Craniofac Surg 2024:00001665-990000000-01387. [PMID: 38421184 DOI: 10.1097/scs.0000000000010064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/08/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Goals of a cranioplasty include protection of the brain, restoration of normal appearance, and neurological function improvement. Although choice of materials for cranial remodeling has changed through the years, computer-designed polyetheretherketone (PEEK) implant has gained traction as a preferred material used for cranioplasty. However, long-term outcomes and complications of PEEK implants remain limited. The goal of this study was to report long-term clinical outcomes after PEEK implant cranioplasty. METHODS A retrospective chart review was performed on patients undergoing PEEK cranioplasty between January 2007 and February 2023. Preoperative, intraoperative, and postoperative data were collected and analyzed. RESULTS Twenty-two patients were included in this study. Mean postoperative follow-up time was 83.45 months (range: 35.47-173.87). Before PEEK implant cranioplasty, patients with multiple cranial procedures had undergone a mean of 2.95 procedures. PEEK implant cranioplasty indications were prior implant infection (14) and secondary reconstruction of cranial defect (8). The mean implant size was 180.43 cm2 (range: 68.00-333.06). Four patients received a 2-piece implant. Postoperative complications included: perioperative subgaleal self-resolving fluid collection in 1 patient, hematoma in another, and 3 infections resulting in explantations with successful reinsertion in 2 patients. Four of 5 patients with preoperative history of seizures reported improved seizures and all 4 patients with preoperative syndrome of the trephined reported improved symptoms and neurological function. CONCLUSION At a mean follow-up of 7 years, most PEEK implants continued to provide protection to the brain and consistent symptom relief in patients suffering from prior postcraniectomy/craniotomy sequelae of seizures and syndrome of the trephined.
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Affiliation(s)
- Cristina V Sanchez
- Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - Andreas E Krag
- Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX
- Department of Plastic and Breast Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Sam Barnett
- Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - Babu G Welch
- Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - Shai M Rozen
- Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX
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4
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Mannella FC, Faedo F, Fumagalli M, Norata GD, Zaed I, Servadei F. Long-Term Follow-Up of Custom-Made Porous Hydroxyapatite Cranioplasties: Analysis of Infections in Adult and Pediatric Patients. J Clin Med 2024; 13:1133. [PMID: 38398446 PMCID: PMC10888657 DOI: 10.3390/jcm13041133] [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: 01/26/2024] [Revised: 02/12/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
In neurosurgery, cranioplasty (CP) stands as a pivotal surgical intervention, particularly following head trauma or various neurosurgical interventions. This study scrutinizes the intricacies of CP, emphasizing its prevalence and associated complications, with a specific focus on custom-made porous hydroxyapatite (PHA) implants. The investigation spans 687 patients (with 80 patients of pediatric age, less than 14 years old) across 26 neurosurgical centers in five European countries. Methodologically, this study delves into patient characteristics, complications, and infection data through a comprehensive post-marketing on-site surveillance approach. Notably, infections emerged as the primary complication, affecting 41 patients (6% of implants) with a clear distinction in onset patterns between pediatric (with more infections, 10% versus 5.4% in adults and an earlier onset of complications) and adult populations. Out of these 41 cases, cranioplasty explantation was required in 30 patients, 4.4% of the total population. Furthermore, bifrontal decompression correlated with a significantly elevated infection risk as compared to unilateral decompression (12.5% versus 5.1%) which remains after the examination of possible confounding factors. These findings provide substantial insights into the complexities of CP, suggesting the necessity for tailored strategies in pediatric and adult cases and cautioning against bifrontal decompressions. Despite acknowledging limitations and calling for prospective studies with long term follow-up, this research advances our understanding of the use of PHA CP, guiding clinical decision-making and emphasizing the importance of customized approaches for diverse patient cohorts.
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Affiliation(s)
- Francesca Carolina Mannella
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, Università degli Studi di Milano, 20133 Milan, Italy; (M.F.); (G.D.N.)
| | - Francesca Faedo
- Department of Biomedical Sciences, Humanitas University, 20072 Milan, Italy;
| | - Marta Fumagalli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, Università degli Studi di Milano, 20133 Milan, Italy; (M.F.); (G.D.N.)
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, Università degli Studi di Milano, 20133 Milan, Italy; (M.F.); (G.D.N.)
| | - Ismail Zaed
- Department of Neurosurgery, Neurocenter of the Southern Switzerland, Regional Hospital of Lugano, CH-2900 Lugano, Switzerland;
| | - Franco Servadei
- Department of Biomedical Sciences, Humanitas University, 20072 Milan, Italy;
- Department of Neurosurgery, IRCCS Humanitas Research Hospital, 20089 Milan, Italy
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5
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Pfnür A, Tosin D, Petkov M, Sharon O, Mayer B, Wirtz CR, Knoll A, Pala A. Exploring complications following cranioplasty after decompressive hemicraniectomy: A retrospective bicenter assessment of autologous, PMMA and CAD implants. Neurosurg Rev 2024; 47:72. [PMID: 38285230 PMCID: PMC10824806 DOI: 10.1007/s10143-024-02309-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/12/2024] [Accepted: 01/20/2024] [Indexed: 01/30/2024]
Abstract
Cranioplasty (CP) after decompressive hemicraniectomy (DHC) is a common neurosurgical procedure with a high complication rate. The best material for the repair of large cranial defects is unclear. The aim of this study was to evaluate different implant materials regarding surgery related complications after CP. Type of materials include the autologous bone flap (ABF), polymethylmethacrylate (PMMA), calcium phosphate reinforced with titanium mesh (CaP-Ti), polyetheretherketone (PEEK) and hydroxyapatite (HA). A retrospective, descriptive, observational bicenter study was performed, medical data of all patients who underwent CP after DHC between January 1st, 2016 and December 31st, 2022 were analyzed. Follow-up was until December 31st, 2023. 139 consecutive patients with a median age of 54 years who received either PMMA (56/139; 40.3%), PEEK (35/139; 25.2%), CaP-Ti (21/139; 15.1%), ABF (25/139; 18.0%) or HA (2/139; 1.4%) cranial implant after DHC were included in the study. Median time from DHC to CP was 117 days and median follow-up period was 43 months. Surgical site infection was the most frequent surgery-related complication (13.7%; 19/139). PEEK implants were mostly affected (28.6%; 10/35), followed by ABF (20%; 5/25), CaP-Ti implants (9.5%; 2/21) and PMMA implants (1.7%, 1/56). Explantation was necessary for 9 PEEK implants (25.7%; 9/35), 6 ABFs (24.0%; 6/25), 3 CaP-Ti implants (14.3%; 3/21) and 4 PMMA implants (7.1%; 4/56). Besides infection, a postoperative hematoma was the most common cause. Median surgical time was 106 min, neither longer surgical time nor use of anticoagulation were significantly related to higher infection rates (p = 0.547; p = 0.152 respectively). Ventriculoperitoneal shunt implantation prior to CP was noted in 33.8% (47/139) and not significantly associated with surgical related complications. Perioperative lumbar drainage, due to bulging brain, inserted in 38 patients (27.3%; 38/139) before surgery was protective when it comes to explantation of the implant (p = 0.035). Based on our results, CP is still related to a relatively high number of infections and further complications. Implant material seems to have a high effect on postoperative infections, since surgical time, anticoagulation therapy and hydrocephalus did not show a statistically significant effect on postoperative complications in this study. PEEK implants and ABFs seem to possess higher risk of postoperative infection. More biocompatible implants such as CaP-Ti might be beneficial. Further, prospective studies are necessary to answer this question.
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Affiliation(s)
- A Pfnür
- Department of Neurosurgery, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - D Tosin
- Department of Neurosurgery, University of Ulm, Lindenallee 2, 89312, Günzburg, Germany
| | - M Petkov
- Department of Neurosurgery, University of Ulm, Lindenallee 2, 89312, Günzburg, Germany
| | - O Sharon
- Department of Neurosurgery, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - B Mayer
- Institute of Epidemiology and Medical Biometry, University of Ulm, Schwabstraße 13, 89075, Ulm, Germany
| | - C R Wirtz
- Department of Neurosurgery, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
- Department of Neurosurgery, University of Ulm, Lindenallee 2, 89312, Günzburg, Germany
| | - A Knoll
- Department of Neurosurgery, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - A Pala
- Department of Neurosurgery, University of Ulm, Lindenallee 2, 89312, Günzburg, Germany
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6
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Oshima A, Yoshida D, Hiruma T, Washimi K, Okubo Y, Sato H. Intraoperative extracorporeal irradiation for giant sarcoma-infiltrated calvarium: a case report. Br J Neurosurg 2023; 37:1742-1745. [PMID: 33645360 DOI: 10.1080/02688697.2021.1888875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/08/2021] [Indexed: 10/22/2022]
Abstract
Large bone defects that occur after resection of calvarial tumours are commonly remedied using titanium meshes or bone prostheses. However, these methods have several problems. While intraoperative extracorporeal radiotherapy for bone flaps could avoid these problems, there have been only a few reports wherein meningiomas were treated with 120 Gy irradiation. Moreover, no reports are available on calvarial metastasis of sarcoma, and the therapeutic radiation dose remains uncertain. Here, we report a case of giant calvarial metastasis of myxoid liposarcoma treated with intraoperative extracorporeal radiotherapy at a dose of 50 Gy. The treatment resulted in successful tumour control followed by favourable bone reconstruction.
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Affiliation(s)
- Akito Oshima
- Department of Neurosurgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Daisaku Yoshida
- Department of Radiation Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Toru Hiruma
- Department of Musculoskeletal Tumour Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Kota Washimi
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Yoichiro Okubo
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Hidemitsu Sato
- Department of Neurosurgery, Kanagawa Cancer Center, Yokohama, Japan
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7
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Slijepcevic AA, Scott B, Lilly GL, Young G, Taghizadeh F, Li R, Petrisor D, Pipkorn P, Rich J, Jackson R, Wax MK, Puram S. Outcomes of Cranioplasty Reconstructions: Review of Cranioplasty Implants and Free Flap Coverage Variables that Affect Implant Exposure. Laryngoscope 2023; 133:2954-2958. [PMID: 37067042 DOI: 10.1002/lary.30688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/21/2023] [Accepted: 03/14/2023] [Indexed: 04/18/2023]
Abstract
BACKGROUND Complex scalp wounds with cranial/dural involvement are challenging to reconstruct. Successful reconstruction can be achieved with cranial implants/hardware and free flap coverage. Wounds can breakdown and require revision procedures. We addressed reconstructive outcomes of different implants requiring free flaps. OBJECTIVE To determine the factors associated with implant exposure. DESIGN Multi-institutional retrospective review of 82 patients, 2000-2020, repaired with cranial implants and free flap coverage. RESULTS Implant exposure occurred in 13/82 (16%) reconstructions. Flap atrophy or thinning leading to implant exposure occurred in 11/82 (13%) reconstructions, including partial flap atrophy OR 0.05 (95% CI 0.0-0.35) and total flap atrophy OR 0.34 (95% CI 0.02-19.66). Revision surgeries that occurred subsequent to flap reconstruction were also associated with implant exposure (OR 0.02 (95% CI 0.0-0.19)). Implant exposure was not associated with radiation therapy, patient health history, implant type, flap type, or postoperative complications. CONCLUSIONS Implant exposure is associated with free flap atrophy, leading to inadequate implant coverage and the need for revision surgeries. Completing reconstruction with adequate soft tissue bulk and coverage and avoiding revision surgery may decrease the risk for implant exposure over time. LEVEL OF EVIDENCE 4 Laryngoscope, 133:2954-2958, 2023.
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Affiliation(s)
- Allison A Slijepcevic
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Brian Scott
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Gabriela L Lilly
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Gavin Young
- School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Farshid Taghizadeh
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Ryan Li
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Daniel Petrisor
- Department of Oral and Maxillofacial Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Patrik Pipkorn
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Jason Rich
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Ryan Jackson
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Mark K Wax
- Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Sidharth Puram
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St. Louis, St. Louis, Missouri, USA
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8
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Chen L, Li J, Huang S, Ma J, Zhou L. Perioperative management and prevention of postoperative complications in patients undergoing cranioplasty with polyetheretherketone. J Plast Reconstr Aesthet Surg 2023; 84:71-78. [PMID: 37327735 DOI: 10.1016/j.bjps.2023.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/15/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE This study aimed to compare the incidence of postoperative complications in patients undergoing cranioplasty with polyetheretherketone (PEEK) materials under different perioperative management schemes and summarize and describe a perioperative bundle to reduce patients' postoperative complications and improve patient outcomes. METHOD We retrospectively analyzed the clinical data of 69 patients who had undergone craniotomy with PEEK materials in the neurosurgery department of our hospital between June 2017 and June 2021. Patients who had received conventional treatment were defined as the conventional group (29 cases), and those who had received the improved scheme were defined as the improved group (40 cases). The early complications of the two groups were compared, and the long-term effects were observed. RESULTS The early total complication rates of the conventional and the improved groups were 55.2% and 32.5%, respectively, without any significant difference (P = 0.06), and the long-term complication rates were 24.1% and 7.5%, respectively, with no significant difference (P = 0.112). The incidence of epidural effusion in the improved group was significantly lower than that in the conventional group, with no significant difference in the incidence of complications, such as intracranial pneumatosis, epidural hemorrhage, new seizures and intracerebral hemorrhage. There was no difference in long-term complications, such as seizures, incision infections, and implant exposure. CONCLUSION Epidural effusion after cranioplasty with PEEK materials is common. This study's improved perioperative bundle can effectively reduce the occurrence of epidural effusion after skull repair.
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Affiliation(s)
- Lin Chen
- Department of Neurosurgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China
| | - Jun Li
- Department of Neurosurgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China
| | - Shan Huang
- Department of Neurosurgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China
| | - Junfeng Ma
- Department of Neurosurgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China
| | - Liang Zhou
- Department of Neurosurgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China.
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Kan D, He X, Liu B, Yang C, Zou Y. Full-thickness skin regeneration beneath the exposed titanium mesh in cranioplasty: Two cases report. Medicine (Baltimore) 2023; 102:e34821. [PMID: 37603526 PMCID: PMC10443770 DOI: 10.1097/md.0000000000034821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/28/2023] [Indexed: 08/23/2023] Open
Abstract
RATIONALE Titanium mesh is one of the most widely used implant materials applied in cranioplasty; however, it has been reported to encounter the risk of progressive scalp thinning and implant exposure over time. Here we present 2 cases of exposed titanium mesh (TM) and unusual phenomena of full-thickness skin regeneration beneath the mesh. PATIENT CONCERNS Two patients, 1 with an 8-year and 1 with a 2-year history of implant exposure after cranial TM implantation. DIAGNOSES The patients were diagnosed with scalp ulcers and cranial TM exposure. INTERVENTION The exposed part of the implant was removed, and the full-thickness skin beneath the mesh was directly used as functional soft tissue coverage to repair the scalp defect. OUTCOMES Full recovery for both patients with cosmetic satisfaction. LESSONS Though the exact mechanism of this epithelisation phenomenon beneath the TM remains to be elucidated, it provided a feasible choice for clinicians to reconstruct the scalp's integrity without exerting complicated procedures when dealing with similar cases.
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Affiliation(s)
- Daohong Kan
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Xuefeng He
- Department of Burns and Wound Repair, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bing Liu
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Chaokun Yang
- Department of Cardio Thoracic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Yong Zou
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
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10
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Saxena V, Sahoo NK, Rangarajan H, Sehgal A. "Bridging the Breach": Cranioplasties Using Different Reconstruction Materials-An Institutional Experience. J Maxillofac Oral Surg 2023; 22:37-43. [PMID: 37041937 PMCID: PMC10082872 DOI: 10.1007/s12663-023-01908-5] [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: 09/18/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
Introduction Cranioplasty is a time tested surgical procedure to restore the form and function of either congenital or acquired calvarial defects. Both autologous bone flaps and alloplastic substitutes have been surgically explored over time to achieve the pre-morbid contour and eliminate the existing and anticipated complications like the "Sinking flap Syndrome". Though autologous bone flap, if preserved, is generally considered the first choice for reconstruction, however its absence/large defect reconstruction calls for alternative options. The selection of the reconstructive material is governed by various patient factors and material-related issues. The current study is an institutional experience of calvarial reconstruction with different materials. Though the aim of the surgery is always maximum patient comfort and satisfaction, post-operative outcome may vary from case to case. Materials and Method Patients with calvarial defects post decompressive craniectomy, referred to the Department of OMFS from the Department of Neurosurgery/Neurology at our tertiary care centre, were successfully managed for the same using autologous Bone flap, customized Titanium and PEEK patient specific implant (PSI). Post-op evaluation for aesthetics, ease of adjustment/workability, thermal conductivity and infection/exposure was done at 01 and 06 months. Results Fifteen patients of cranial defects post decompressive craniectomy were taken up of calvarial reconstruction using autologous Bone flap (n = 5), Titanium (n = 5) and PEEK (n = 5) patient specific implant (PSI). Satisfactory restoration of cranial contour was seen in all cases immediately after surgery. One patient underwent flap necrosis in bone flap group, while thermal conductivity was reported in 2 out of 5 cases of titanium PSI. Ease of workability was relatively low in all cases of PEEK group while increased overall surgical duration was encountered in bone flap group owing to second surgical site in abdomen. Conclusion A variety of reconstruction materials may be used for cranial contouring depending on the defect and surgeon's experience, however the results may vary from case to case thus mandating tailor-made treatment for each patient.
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Affiliation(s)
- Vivek Saxena
- Department of OMFS, Army Dental Centre,(R&R), New Delhi, 110010 India
| | - N. K. Sahoo
- Department of OMFS, Army Dental Centre,(R&R), New Delhi, 110010 India
| | - H. Rangarajan
- Department of OMFS, Army Dental Centre,(R&R), New Delhi, 110010 India
| | - Akash Sehgal
- Department of OMFS, Army Dental Centre,(R&R), New Delhi, 110010 India
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Sorek S, Miller A, Griepp D, Moawad S, Zanzerkia R, Rahme R. Skull Reconstruction Using a Custom-Made, Three-Dimensional-Printed, Hydroxyapatite-Titanium Cranioplasty Implant: Largest Single-Center U.S. Experience. World Neurosurg 2022; 167:e1387-e1394. [PMID: 36115561 DOI: 10.1016/j.wneu.2022.09.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/11/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Although several material options, both natural and synthetic, are available for cranioplasty, the rate of implant-related complications has remained high. A relatively novel, synthetic hydroxyapatite-titanium implant, which combines biocompatibility with biomechanical resilience, has been reported to reduce tissue inflammation, infection, and explantation rates, while delivering superior cosmetic results. However, despite such promising preliminary reports, clinical data supporting its use have remained scarce. METHODS All the patients who had undergone cranioplasty between 2019 and 2022 using this implant were identified from a prospectively maintained database. Medical records were retrospectively reviewed and the following variables recorded: demographic data, clinical data, radiologic findings, operative details, complications (implant-related and unrelated), and outcomes. RESULTS A total of 18 patients (12 men and 6 women), with a mean age of 39 years (range, 20-70 years), were identified. The indications for craniectomy were traumatic brain injury (n = 13; 72.2%), hemorrhagic stroke (n = 3; 16.7%), and ischemic stroke (n = 2; 11.1%). The median time to cranioplasty was 140 days (range, 51-1717 days). The median modified Rankin scale score before cranioplasty was 4 (range, 0-5). Cranioplasty was technically successful in all 18 patients. Minor postoperative complications, none related to the implant, were managed conservatively in 3 patients (16.6%), including a small intraparenchymal hematoma in 1, an extra-axial hematoma in 1, and a seizure in 1. Of these 3 patients, 1 (5.6%) died 1 week later of a suspected pulmonary embolism. No implant-related complications occurred after a median follow-up of 6 months (range, 1-38 months). All 17 survivors exhibited some degree of neurologic improvement. The cosmetic result was good or excellent for all patients. CONCLUSIONS Our experience, the largest in the United States, confirms the previously reported benefits associated with the use of 3-dimensional-printed hydroxyapatite-titanium cranioplasty implants.
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Affiliation(s)
- Sahar Sorek
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA; NYIT College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Aaron Miller
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA; NYIT College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Daniel Griepp
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA; NYIT College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Stephanie Moawad
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA
| | - Rebecca Zanzerkia
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA
| | - Ralph Rahme
- Division of Neurosurgery, SBH Health System, Bronx, New York, New York, USA; NYIT College of Osteopathic Medicine, Old Westbury, New York, USA; CUNY School of Medicine, New York, New York, USA.
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12
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Analysis of PMMA versus CaP titanium-enhanced implants for cranioplasty after decompressive craniectomy: a retrospective observational cohort study. Neurosurg Rev 2022; 45:3647-3655. [PMID: 36222944 DOI: 10.1007/s10143-022-01874-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/24/2022] [Accepted: 09/01/2022] [Indexed: 10/17/2022]
Abstract
Numerous materials of implants used for cranioplasty after decompressive craniectomy (DC) have been investigated to meet certain demanded key features, such as stability, applicability, and biocompatibility. We aimed to evaluate the feasibility and safety of biocompatible calcium-phosphate (CaP) implants for cranioplasty compared to polymethylmethacrylate (PMMA) implants. In this retrospective observational cohort study, the medical records of all patients who underwent cranioplasty between January 1st, 2015, and January 1st, 2022, were reviewed. Demographic, clinical, and diagnostic data were collected. Eighty-two consecutive patients with a mean age of 52 years (range 22-72 years) who received either a PMMA (43/82; 52.4%) or CaP (39/82; 47.6%) cranial implant after DC were included in the study. Indications for DC were equally distributed in both groups. Time from DC to cranioplasty was 143.8 ± 17.5 days (PMMA) versus 98.5 ± 10.4 days (CaP). The mean follow-up period was 34.9 ± 27.1 months. Postoperative complications occurred in 13 patients with PMMA and 6 in those with CaP implants (13/43 [30.2%] vs. 6/39 [15.4%]; p = 0.115). Revision surgery with implant removal was necessary for 9 PMMA patients and in 1 with a CaP implant (9/43 [20.9%] vs. 1/39 [2.6%]; p = 0.0336); 6 PMMA implants were removed due to surgical site infection (SSI) (PMMA 6/43 [14%] vs. CaP 0/39 [0%]; p = 0.012). In this study, a biocompatible CaP implant seems to be superior to a PMMA implant in terms of SSI and postoperative complications. The absence of SSI supports the idea of the biocompatible implant material with its ability for osseointegration.
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13
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Ji T, Yao P, Zeng Y, Qian Z, Wang K, Gao L. Subgaleal Effusion and Brain Midline Shift After Cranioplasty: A Retrospective Study Between Polyetheretherketone Cranioplasty and Titanium Cranioplasty After Decompressive Craniectomy. Front Surg 2022; 9:923987. [PMID: 35937601 PMCID: PMC9351718 DOI: 10.3389/fsurg.2022.923987] [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: 04/20/2022] [Accepted: 06/10/2022] [Indexed: 11/21/2022] Open
Abstract
Cranioplasty with polyetheretherketone (PEEK) has recently shown better cerebral protection performance, improved brain function, and aesthetic contour compared with titanium mesh. However, whether patients undergoing PEEK cranioplasty tend to develop subgaleal effusions remains elusive. This retrospective study included patients who underwent cranioplasty with PEEK implants or titanium mesh after decompressive craniectomy between July 2017 and July 2020. Patient information, including general information, location, size of the defect, subgaleal depth, and brain midline shift was collected and statistically analyzed. There were 130 cases of cranioplasty, including 35 with PEEK implants and 95 with a titanium mesh. Patients who underwent cranioplasty with a PEEK implant had a higher subgaleal effusion rate than those who underwent cranioplasty with titanium mesh (85.71% vs. 53.68%, P < 0.001), while a midline shift >5 mm was more frequently observed in the PEEK group than in the titanium group (20% vs. 6.3%, P = 0.021). The PEEK material was the only factor associated with subgaleal effusion after cranioplasty (OR 5.589, P = 0.002). Logistic regression analysis further showed that age was a protective factor against midline shift in the PEEK cranioplasty group (OR 0.837, P = 0.029). Patients who underwent cranioplasty with PEEK implants were more likely to develop severe subgaleal effusion and significant brain midline shifts than those with titanium mesh implants.
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Affiliation(s)
- Tao Ji
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Peiwen Yao
- School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yu Zeng
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Zhouqi Qian
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Ke Wang
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
- Correspondence: Liang Gao Ke Wang
| | - Liang Gao
- School of Clinical Medicine, Nanjing Medical University, Nanjing, China
- Correspondence: Liang Gao Ke Wang
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14
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Shi Y, Liu J, Du M, Zhang S, Liu Y, Yang H, Shi R, Guo Y, Song F, Zhao Y, Lan J. Customized Barrier Membrane (Titanium Alloy, Poly Ether-Ether Ketone and Unsintered Hydroxyapatite/Poly-l-Lactide) for Guided Bone Regeneration. Front Bioeng Biotechnol 2022; 10:916967. [PMID: 35837554 PMCID: PMC9273899 DOI: 10.3389/fbioe.2022.916967] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
Sufficient bone volume is indispensable to achieve functional and aesthetic results in the fields of oral oncology, trauma, and implantology. Currently, guided bone regeneration (GBR) is widely used in reconstructing the alveolar ridge and repairing bone defects owing to its low technical sensitivity and considerable osteogenic effect. However, traditional barrier membranes such as collagen membranes or commercial titanium mesh cannot meet clinical requirements, such as lack of space-preserving ability, or may lead to more complications. With the development of digitalization and three-dimensional printing technology, the above problems can be addressed by employing customized barrier membranes to achieve space maintenance, precise predictability of bone graft, and optimization of patient-specific strategies. The article reviews the processes and advantages of three-dimensional computer-assisted surgery with GBR in maxillofacial reconstruction and alveolar bone augmentation; the properties of materials used in fabricating customized bone regeneration sheets; the promising bone regeneration potency of customized barrier membranes in clinical applications; and up-to-date achievements. This review aims to present a reference on the clinical aspects and future applications of customized barrier membranes.
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Affiliation(s)
- Yilin Shi
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Jin Liu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Mi Du
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Shengben Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yue Liu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Hu Yang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Ruiwen Shi
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yuanyuan Guo
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Feng Song
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Yajun Zhao
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
- *Correspondence: Jing Lan, ; Yajun Zhao,
| | - Jing Lan
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China
- Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
- *Correspondence: Jing Lan, ; Yajun Zhao,
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15
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Millward CP, Doherty JA, Mustafa MA, Humphries TJ, Islim AI, Richardson GE, Clynch AL, Gillespie CS, Keshwara SM, Kolamunnage-Dona R, Brodbelt AR, Jenkinson MD, Duncan C, Sinha A, McMahon CJ. Cranioplasty with hydroxyapatite or acrylic is associated with a reduced risk of all-cause and infection-associated explantation. Br J Neurosurg 2022; 36:385-393. [DOI: 10.1080/02688697.2022.2077311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Christopher P. Millward
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
- Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - John A. Doherty
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
| | | | - Thomas J. Humphries
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
| | - Abdurrahman I. Islim
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
- Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
- School of Medicine, University of Liverpool, Liverpool, United Kingdom
| | | | - Abigail L. Clynch
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
- Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
- School of Medicine, University of Liverpool, Liverpool, United Kingdom
| | | | | | | | - Andrew R. Brodbelt
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
- Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Michael D. Jenkinson
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
- Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Christian Duncan
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
| | - Ajay Sinha
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
| | - Catherine J. McMahon
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, United Kingdom
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16
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Khalid SI, Thomson KB, Maasarani S, Wiegmann AL, Smith J, Adogwa O, Mehta AI, Dorafshar AH. Materials Used in Cranial Reconstruction: A Systematic Review and Meta-Analysis. World Neurosurg 2022; 164:e945-e963. [PMID: 35623608 DOI: 10.1016/j.wneu.2022.05.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cranioplasty is a common neurological procedure with complication rates ranging from 20% to 50%. It is hypothesized that the risks of various complications are impacted by which material is used for cranioplasty. OBJECTIVE To evaluate existing literature comparing rates of complications following cranioplasty using different materials including autologous bone, hydroxyapatite, methyl methacrylate (MMA), demineralized bone matrix, polyetheretherketone, titanium, or composite materials. METHODS PubMed/MEDLINE database was searched for relevant articles published between 2010 and 2020. After screening, 35 articles were included. Outcomes included infection, wound problems, poor cosmesis, overall complications, duration of surgery, and length of stay. For each outcome, a frequentist network meta-analysis was conducted to compare materials used. RESULTS The risk of infection was 1.62 times higher when MMA was used compared to autologous bone (RR 1.62, 95% CI 1.07 to 2.45). Length of stay following cranioplasty was on average 3.62 days shorter when titanium was used compared autologous bone (95% CI -6.26 to -0.98). The networks constructed for other outcomes demonstrated moderate to substantial between-study heterogeneity, wide confidence intervals, and no significant differences between materials. CONCLUSIONS The quality of existing literature on this topic is relatively poor, almost exclusively comprised of single-center retrospective studies. There is currently not strong enough evidence available to make comprehensive conclusions regarding the risk-profiles of various cranioplasty materials across multiple outcomes. Prospective randomized trials are necessary to confirm the significant results found in this analysis and to further elucidate the differential risks of various cranioplasty materials.
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Affiliation(s)
- Syed I Khalid
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, IL.
| | | | | | - Aaron L Wiegmann
- Division of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, IL
| | | | - Owoicho Adogwa
- Department of Neurosurgery, University of Cincinnati, Cincinnati, OH
| | - Ankit I Mehta
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, IL
| | - Amir H Dorafshar
- Division of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, IL
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17
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Hubbe U, Beiser S, Kuhn S, Stark T, Hoess A, Cristina-Schmitz H, Vasilikos I, Metzger MC, Rothweiler R. A fully ingrowing implant for cranial reconstruction: Results in critical size defects in sheep using 3D-printed titanium scaffold. BIOMATERIALS ADVANCES 2022; 136:212754. [PMID: 35929289 DOI: 10.1016/j.bioadv.2022.212754] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/23/2022] [Accepted: 03/06/2022] [Indexed: 06/15/2023]
Abstract
Current alloplastic materials such as PMMA, titanium or PEEK don't show relevant bone ingrowth into the implant when used for cranioplasty, ceramic implants have the drawback being brittle. New materials and implant designs are urgently needed being biocompatible, stable enough for cranioplasty and stimulating bone formation. In an in vivo critical size sheep model circular cranial defects (>2.4 cm) were covered with three different types of a 3D-printed porous titanium scaffolds with multidirectional, stochastically distributed architecture (uncoated scaffold, hydroxyapatite-coated scaffold, uncoated scaffold filled with a calcium phosphate bone cement paste containing β-TCP granules). An empty titanium mesh served as control. Among the different investigated setups the hydroxyapatite-coated scaffolds showed a surprisingly favourable performance. Push-out tests revealed a 2.9 fold higher force needed in the hydroxyapatite-coated scaffolds compared to the mesh group. Mean CT density at five different points inside the scaffold was 2385HU in the hydroxyapatite-coated group compared to 1978HU in the uncoated scaffold at nine months. Average lateral bone ingrowth after four months in the hydroxyapatite-coated scaffold group was up to the implant center, 12.1 mm on average, compared to 2.8 mm in the control group covered with mesh only. These properties make the investigated scaffold with multidirectional, stochastically distributed structure superior to all products currently on the market. The study gives a good idea of what future materials for cranioplasty might look like.
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Affiliation(s)
- U Hubbe
- Department of Neurosurgery, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, Freiburg 79106, Germany.
| | - S Beiser
- Department of Neurosurgery, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, Freiburg 79106, Germany.
| | - S Kuhn
- Stryker Leibinger GmbH & Co. KG, Bötzinger Straße 41, Freiburg 79111, Germany.
| | - T Stark
- Stryker Leibinger GmbH & Co. KG, Bötzinger Straße 41, Freiburg 79111, Germany.
| | - A Hoess
- INNOTERE GmbH, Meissner Str. 191, Radebeul, 01445, Germany
| | - H Cristina-Schmitz
- Division of Experimental Surgery, Center for Experimental Models and Transgenic Services, Germany; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.
| | - I Vasilikos
- Department of Neurosurgery, Faculty of Medicine, University of Freiburg, Breisacher Str. 64, Freiburg 79106, Germany.
| | - M C Metzger
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Freiburg, Hugstetter Straße 55, Freiburg 79106, Germany.
| | - R Rothweiler
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Freiburg, Hugstetter Straße 55, Freiburg 79106, Germany.
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18
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He Z, Ma Y, Yang C, Hui J, Mao Q, Gao G, Jiang J, Feng J. A Perioperative Paradigm of Cranioplasty With Polyetheretherketone: Comprehensive Management for Preventing Postoperative Complications. Front Surg 2022; 9:856743. [PMID: 35388364 PMCID: PMC8977411 DOI: 10.3389/fsurg.2022.856743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/15/2022] [Indexed: 11/22/2022] Open
Abstract
Introduction At present, lots of studies have discussed the effects and outcomes of cranioplasty using polyetheretherketone (PEEK). However, interventions or management for PEEK cranioplasty got less attention. This article presented a perioperative paradigm for preventing postoperative complications. Materials and Methods Modified PEEK plates with certified safety were implanted in patients who received evolving perioperative paradigm. Serial perioperative managements were developed as a comprehensive paradigm to prevent correlated risk factors of postoperative complications, which mainly included managements of epidural collections and wound healing. The preparation of the surgical area and systemic state were essential before surgery. During the operation, the blood supply of the incision and the handling of dura and temporalis were highlighted in our paradigm. After cranioplasty, management of subcutaneous drainage and wound healing were stressed. Patients received conventional management from February 2017 to August 2018 in our center. After the evolving paradigm developed, patients received comprehensive perioperative management from September 2018 to August 2020. Results A total of 104 patients who underwent PEEK cranioplasty were consecutively enrolled; 38 (36.5%) received conventional perioperative management, and 66 (63.5%) received evolving perioperative paradigm. The general information of the two groups was comparable. Notably, patients who received the evolving paradigm presented a significantly decreased incidence of postoperative complications from 47.4 to 18.2% (P < 0.01), among which the incidences of subcutaneous effusion, epidural hematoma, and subcutaneous infection decreased significantly. Conclusion The evolving perioperative paradigm could effectively prevent risk factors and reduce related complications. It was valuable to promote these comprehensive managements and inspire more clinical practice on improving patients' outcomes after PEEK cranioplasty.
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Affiliation(s)
- Zhenghui He
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuxiao Ma
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chun Yang
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiyuan Hui
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Mao
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Institute of Head Trauma, Shanghai, China
| | - Guoyi Gao
- Shanghai Institute of Head Trauma, Shanghai, China
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiyao Jiang
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Institute of Head Trauma, Shanghai, China
| | - Junfeng Feng
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Institute of Head Trauma, Shanghai, China
- *Correspondence: Junfeng Feng
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19
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Pöppe JP, Spendel M, Schwartz C, Winkler PA, Wittig J. The "springform" technique in cranioplasty: custom made 3D-printed templates for intraoperative modelling of polymethylmethacrylate cranial implants. Acta Neurochir (Wien) 2022; 164:679-688. [PMID: 34873659 PMCID: PMC8913485 DOI: 10.1007/s00701-021-05077-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/23/2021] [Indexed: 12/19/2022]
Abstract
Background Manual moulding of cranioplasty implants after craniectomy is feasible, but does not always yield satisfying cosmetic results. In contrast, 3D printing can provide precise templates for intraoperative moulding of polymethylmethacrylate (PMMA) implants in cranioplasty. Here, we present a novel and easily implementable 3D printing workflow to produce patient-specific, sterilisable templates for PMMA implant moulding in cranioplastic neurosurgery. Methods 3D printable templates of patients with large skull defects before and after craniectomy were designed virtually from cranial CT scans. Both templates — a mould to reconstruct the outer skull shape and a ring representing the craniectomy defect margins — were printed on a desktop 3D printer with biocompatible photopolymer resins and sterilised after curing. Implant moulding and implantation were then performed intraoperatively using the templates. Clinical and radiological data were retrospectively analysed. Results Sixteen PMMA implants were performed on 14 consecutive patients within a time span of 10 months. The median defect size was 83.4 cm2 (range 57.8–120.1 cm2). Median age was 51 (range 21–80) years, and median operating time was 82.5 (range 52–152) min. No intraoperative complications occurred; PMMA moulding was uneventful and all implants fitted well into craniectomy defects. Excellent skull reconstruction could be confirmed in all postoperative computed tomography (CT) scans. In three (21.4%) patients with distinct risk factors for postoperative haematoma, revision surgery for epidural haematoma had to be performed. No surgery-related mortality or new and permanent neurologic deficits were recorded. Conclusion Our novel 3D printing-aided moulding workflow for elective cranioplasty with patient-specific PMMA implants proved to be an easily implementable alternative to solely manual implant moulding. The “springform” principle, focusing on reconstruction of the precraniectomy skull shape and perfect closure of the craniectomy defect, was feasible and showed excellent cosmetic results. The proposed method combines the precision and cosmetic advantages of computer-aided design (CAD) implants with the cost-effectiveness of manually moulded PMMA implants. Supplementary Information The online version contains supplementary material available at 10.1007/s00701-021-05077-7.
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Affiliation(s)
- Johannes P Pöppe
- Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University, Ignaz-Harrer-Str. 79, 5020, Salzburg, Austria.
| | - Mathias Spendel
- Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University, Ignaz-Harrer-Str. 79, 5020, Salzburg, Austria
| | - Christoph Schwartz
- Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University, Ignaz-Harrer-Str. 79, 5020, Salzburg, Austria
| | - Peter A Winkler
- Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University, Ignaz-Harrer-Str. 79, 5020, Salzburg, Austria
| | - Jörn Wittig
- Department of Oral and Maxillofacial Surgery, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
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20
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Henry J, Amoo M, Taylor J, O'Brien DP. In Reply: Complications of Cranioplasty in Relation to Material: Systematic Review, Network Meta-Analysis and Meta-Regression. Neurosurgery 2022; 90:e73-e75. [PMID: 34995247 DOI: 10.1227/neu.0000000000001793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 09/29/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Jack Henry
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - Michael Amoo
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons Ireland, Dublin, Ireland
| | - Joseph Taylor
- School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - David P O'Brien
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons Ireland, Dublin, Ireland
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21
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Histological Processing of CAD/CAM Titanium Scaffold after Long-Term Failure in Cranioplasty. MATERIALS 2022; 15:ma15030982. [PMID: 35160928 PMCID: PMC8839919 DOI: 10.3390/ma15030982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/17/2022] [Accepted: 01/25/2022] [Indexed: 02/01/2023]
Abstract
Cranioplasty is a frequently performed procedure after craniectomy and includes several techniques with different materials. Due to high overall complication rates, alloplastic implants are removed in many cases. Lack of implant material osseointegration is often assumed as a reason for failure, but no study has proven this in cranioplasty. This study histologically evaluates the osteointegration of a computer-aided design and computer-aided manufacturing (CAD/CAM) titanium scaffold with an open mesh structure used for cranioplasty. A CAD/CAM titanium scaffold was removed due to late soft tissue complications 7.6 years after cranioplasty. The histological analyses involved the preparation of non-decalcified slices from the scaffold’s inner and outer sides as well as a light-microscopic evaluation, including the quantification of the bone that had formed over the years. Within the scaffold pores, vital connective tissue with both blood vessels and nerves was found. Exclusive bone formation only occurred at the edges of the implant, covering 0.21% of the skin-facing outer surface area. The inner scaffold surface, facing towards the brain, did not show any mineralization at all. Although conventional alloplastic materials for cranioplasty reduce surgery time and provide good esthetic results while mechanically protecting the underlying structures, a lack of adequate stimuli could explain the limited bone formation found. CAD/CAM porous titanium scaffolds alone insufficiently osseointegrate in such large bone defects of the skull. Future research should investigate alternative routes that enable long-term osteointegration in order to reduce complication rates after cranioplasty. Opportunities could be found in mechano-biologically optimized scaffolds, material modifications, surface coatings, or other routes to sustain bone formation.
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22
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Kim MJ, Lee HB, Ha SK, Lim DJ, Kim SD. Predictive Factors of Surgical Site Infection Following Cranioplasty: A Study Including 3D Printed Implants. Front Neurol 2021; 12:745575. [PMID: 34795630 PMCID: PMC8592932 DOI: 10.3389/fneur.2021.745575] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/13/2021] [Indexed: 12/22/2022] Open
Abstract
In patients who have undergone decompressive craniectomy (DC), subsequent cranioplasty is required to reconstruct cranial defects. Surgical site infection (SSI) following cranioplasty is a devastating complication that can lead to cranioplasty failure. The aim of the present study, therefore, was to identify predictive factors for SSI following cranioplasty by reviewing procedures performed over a 10-year period. A retrospective analysis was performed for all patients who underwent cranioplasty following DC between 2010 and 2020 at a single institution. The patients were divided into two groups, non-SSI and SSI, in order to identify clinical variables that are significantly correlated with SSI following cranioplasty. Cox proportional hazards regression analyses were then performed to identify predictive factors associated with SSI following cranioplasty. A total of 172 patients who underwent cranioplasty, including 48 who received customized three-dimensional (3D) printed implants, were enrolled in the present study. SSI occurred in 17 patients (9.9%). Statistically significant differences were detected between the non-SSI and SSI groups with respect to presence of fluid collections on CT scans before and after cranioplasty. Presence of fluid collections on computed tomography (CT) scan before (p = 0.0114) and after cranioplasty (p < 0.0000) showed significant association with event-free survival rate for SSI. In a univariate analysis, significant predictors for SSI were fluid collection before (p = 0.0172) and after (p < 0.0001) cranioplasty. In a multivariate analysis, only the presence of fluid collection after cranioplasty was significantly associated with the occurrence of SSI (p < 0.0001). The present study investigated predictive factors that may help identify patients at risk of SSI following cranioplasty and provide guidelines associated with the procedure. Based on the results of the present study, only the presence of fluid collection on CT scan after cranioplasty was significantly associated with the occurrence of SSI. Further investigation with long-term follow-up and large-scale prospective studies are needed to confirm our conclusions.
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Affiliation(s)
- Myung Ji Kim
- Department of Neurosurgery, Korea University Medical Center, Korea University College of Medicine, Ansan Hospital, Ansan-si, South Korea
| | - Hae-Bin Lee
- Department of Neurosurgery, Korea University Medical Center, Korea University College of Medicine, Ansan Hospital, Ansan-si, South Korea
| | - Sung-Kon Ha
- Department of Neurosurgery, Korea University Medical Center, Korea University College of Medicine, Ansan Hospital, Ansan-si, South Korea
| | - Dong-Jun Lim
- Department of Neurosurgery, Korea University Medical Center, Korea University College of Medicine, Ansan Hospital, Ansan-si, South Korea
| | - Sang-Dae Kim
- Department of Neurosurgery, Korea University Medical Center, Korea University College of Medicine, Ansan Hospital, Ansan-si, South Korea
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23
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Extensive Convexity Flattening of a Synthetic Skull Implant the Overcome Major Scalp Deficiency After Multiple Craniotomies. J Craniofac Surg 2021; 32:2532-2535. [PMID: 34172675 PMCID: PMC8478319 DOI: 10.1097/scs.0000000000007750] [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] [Indexed: 12/03/2022] Open
Abstract
Multiple craniofacial surgeries and postoperative recalcitrant infections frequently can lead to secondary scalp tissue scarring and skin retraction. Although there are different methods of reducing and optimizing scalp skin tension, the authors describe a last resort treatment method of cranioplastic procedure, which despite of its unfavorable cosmetic outcome, relieves the skin tension through extensive flattening of the polyetheretherketone curvature. Thereby, a custom-made cranioplastic bone flap was extensively flattened in the curvature of the fronto-parietal area with consideration of the related brain hemisphere extension. The extent of bone curvature flatting reduced the skin tension significantly and allowed for plain and simple tension-free wound closure in a chronic smoker patient with poor skin quality and brain atrophy. Although brain extension was sufficient, the cosmetic outcome was unfavorable with regard to skull symmetry, but well accepted and satisfactory for the patient due to preoperative discussion outcome expectation from surgery. Thus, extensive polyetheretherketone curvature flattening is a straightforward and simple last resort treatment option for tension-free skin closure in high-risk patients with extensive skin scarring and retraction and previous reconstructive plastic skin relief procedures. However, this method is limited in patients with normal brain hemisphere extension.
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Ostrov PB, Mehta AI. Commentary: Complications of Cranioplasty in Relation to Material: Systematic Review, Network Meta-Analysis and Meta-Regression. Neurosurgery 2021; 89:E144. [PMID: 34161587 DOI: 10.1093/neuros/nyab216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/05/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Philip B Ostrov
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Ankit I Mehta
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois, USA
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Spellicy SE, Kilianski JR, Poston R, Moore-Hill D, Vale FL. Tethered brain: disentangling unintentional brain-mesh interfaces. Illustrative case. JOURNAL OF NEUROSURGERY: CASE LESSONS 2021; 1:CASE21183. [PMID: 35855100 PMCID: PMC9245840 DOI: 10.3171/case21183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 04/07/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND
Surgical meshes have found widespread use in neurosurgical practice. While commonly recognized risks of synthetic mesh include infection, exposure of mesh implants, and foreign body reaction, the risk of mesh tethering to neural structures is often overlooked.
OBSERVATIONS
The authors presented the first case, to their knowledge, of the disentanglement of mesh interfaced to cortical tissue. The patient, a 68-year-old woman, presented with severe intractable seizure disorder and worsening left hand function and incoordination after meningioma resection and cranioplasty 9 years earlier. Magnetic resonance imaging (MRI) demonstrated interval progression of macrocystic encephalomalacia involving the right supplementary motor area, with fluid-attenuated inversion recovery signal extending posteriorly into the right primary motor cortex. Both computed tomography and MRI suggested potential tethering of the cortex to the overlying cranioplasty mesh. Because of the progressive nature of her condition, the decision was made to surgically remove the tethered mesh.
LESSONS
De-tethering brain parenchyma from surgical mesh requires careful microdissection and judicious use of electrocautery to minimize further tissue damage and preserve neurological function. This inadvertent complication evinces the importance of using dural substitutes when unable to primarily repair the dura to prevent scarring and tethering of neural tissues to synthetic cranioplasty materials.
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Amoo M, Henry J. Letter to the Editor: Complications following titanium cranioplasty compared with nontitanium implants cranioplasty: A systematic review and meta-analysis. J Clin Neurosci 2021; 87:32-34. [PMID: 33863530 DOI: 10.1016/j.jocn.2021.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 02/13/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Michael Amoo
- National Centre for Neurosurgery, Beaumont Hospital, Dublin, Ireland; Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - Jack Henry
- National Centre for Neurosurgery, Beaumont Hospital, Dublin, Ireland.
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Nguyen B, Ashraf O, Richards R, Tra H, Huynh T. Cranioplasty Using Customized 3-Dimensional-Printed Titanium Implants: An International Collaboration Effort to Improve Neurosurgical Care. World Neurosurg 2021; 149:174-180. [PMID: 33647494 DOI: 10.1016/j.wneu.2021.02.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/20/2021] [Accepted: 02/21/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Evolutions in cranioplasty have allowed for the creation of customized implants via advances in 3-dimensional (3D) printing technology, although the high cost associated with this technique presents a barrier for low-income countries. Through an international collaboration, our team in Da Nang, Vietnam is able to create low-cost, customized titanium implants for patients with skull defects. We discuss the details of our collaboration and present our experience with this procedure. METHODS We conducted a retrospective review of 35 patients who underwent cranioplasty using custom-made titanium implants. The molding and implant making processes were performed by our neurosurgeons using a 3D printer donated by the United Kingdom-based nongovernmental organization Facing the World. We obtained demographic and preoperative data (reason for skull defect, location, surface area measurement of defect) and postoperative data (complications, cosmetic outcome, and patient satisfaction). RESULTS The median patient age was 27 years (range, 16-60 years). Primary indications for craniectomy included traumatic brain injury from motor vehicle accident (77.1%), cerebrovascular disease (11.4%), implant failure following previous cranioplasty (5.7%), and fall (5.7%). Postoperatively, all implants were found to have an excellent fit; at 6-month follow-up, none of the implants required removal. Complications included 4 postoperative hematomas and 1 surgical site infection. All the patients had improved aesthetic appearance and high satisfaction. CONCLUSIONS Cranioplasty using customized titanium implants yields excellent results for patients with skull defects, demonstrating the practicality of this technique for cranioplasty in low-income countries. Our experience highlights the importance of ongoing international collaboration to improve neurosurgical care in these countries.
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Affiliation(s)
- Bach Nguyen
- Neurosurgery Department, Danang Hospital, Danang, Vietnam
| | - Omar Ashraf
- Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | | | - Hoanh Tra
- Neurosurgery Department, Danang Hospital, Danang, Vietnam
| | - Trong Huynh
- Neurosurgery Department, Danang Hospital, Danang, Vietnam; Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA.
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28
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Zhu S, Chen Y, Lin F, Chen Z, Jiang X, Zhang J, Wang J. Complications following titanium cranioplasty compared with nontitanium implants cranioplasty: A systematic review and meta-analysis. J Clin Neurosci 2020; 84:66-74. [PMID: 33485602 DOI: 10.1016/j.jocn.2020.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/31/2020] [Accepted: 12/06/2020] [Indexed: 01/11/2023]
Abstract
Decompressive craniectomy is widely used to treat medically refractory intracranial hypertension. There were still few studies focusing on the complications between titanium cranioplasty with non-titanium materials cranioplasty. Our systematic review and meta-analysis aimed to assess the complications following titanium cranioplasty and to make a comparison with nontitanium materials. A systematic review was used to review titanium cranioplasty characters in recent articles. A systematic literature review and meta-analysis were performed by using PubMed/MEDLINE, Scopus, the Cochrane databases and Embase for studies reporting on cranioplasty procedures that compared complication outcomes between titanium with non-titanium materials. The final 15 studies met inclusion criteria and represented 2258 cranioplasty procedures (896 titanium, 1362 nontitanium materials). Overall complications included surgical site infection, hematoma, implant exposure, seizure, cerebrospinal fluid leak, imprecise fitting. Titanium cranioplasty was associated with a significant decrease in overall complications rate (OR, 0.72; P = 0.007), hematoma rate (OR, 0.31; P = 0.0003) and imprecise fitting rate (OR, 0.35; P = 0.04). However, it also suggested that titanium cranioplasty can be greatly increased implant exposure rate (OR, 4.11; P < 0.00001). Our results confirmed the advantages of titanium cranioplasty in reducing complications including hematoma, imprecise fitting, and also suggested that clinicians should pay more attention to postoperative implant exposure. With new synthetic materials emerging, it would also be interesting to study the cost-effect and functional outcomes associated with cranioplasty materials.
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Affiliation(s)
- Sihan Zhu
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Yinsheng Chen
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Fuhua Lin
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Zhenghe Chen
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Xiaobing Jiang
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Ji Zhang
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Jian Wang
- Department of Neurosurgery and Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou 510060, China.
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29
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Yang J, Guan J. Letter: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E717-E718. [DOI: 10.1093/neuros/nyaa402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 07/18/2020] [Indexed: 11/14/2022] Open
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30
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Rosinski CL, Behbahani M, Mehta AI. In Reply: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E719. [DOI: 10.1093/neuros/nyaa406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 11/13/2022] Open
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31
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Zaed I, Tinterri B. Letter: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E600-E601. [PMID: 32735673 DOI: 10.1093/neuros/nyaa340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ismail Zaed
- Department of Neurosurgery Humanitas Clinical and Research Center-IRCCS Rozzano, Italy
- Humanitas University Rozzano, Italy
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32
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Rosinski CL, Chaker AN, Patel S, Behbahani M, Mehta AI. In Reply: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E602. [PMID: 32735648 DOI: 10.1093/neuros/nyaa347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Clayton L Rosinski
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Anisse N Chaker
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Saavan Patel
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Mandana Behbahani
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Ankit I Mehta
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
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33
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Rosinski CL, Patel S, Chaker AN, Behbahani M, Mehta AI. In Reply: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E268. [PMID: 32386220 DOI: 10.1093/neuros/nyaa152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Clayton L Rosinski
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Saavan Patel
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Anisse N Chaker
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Mandana Behbahani
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
| | - Ankit I Mehta
- Department of Neurosurgery The University of Illinois at Chicago Chicago, Illinois
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34
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Yang J, Sun T, Yuan Y, Li X, Yu H, Guan J. Evaluation of titanium cranioplasty and polyetheretherketone cranioplasty after decompressive craniectomy for traumatic brain injury: A prospective, multicenter, non-randomized controlled trial. Medicine (Baltimore) 2020; 99:e21251. [PMID: 32791701 PMCID: PMC7386959 DOI: 10.1097/md.0000000000021251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Cranioplasty following decompressive craniectomy is routinely performed to restore integrity of skull and improve neurological function. However, reconstructing the cranial defect brings many challenges to neurosurgeons and search for ideal implant materials is one of the most controversial issues. Although many studies have compared the outcomes of titanium and polyetheretherketone (PEEK) cranioplasty, yet no prospective study exists to guide the choice of titanium and PEEK materials. METHODS/DESIGN A non-randomized, partially blinded, prospective cohort study is described that comprehensively compares the long-term outcomes of titanium cranioplasty versus PEEK cranioplasty. One hundred forty-five patients for each group will be recruited. Eligible patients are those with cranial defect due to traumatic brain injury (≥ 16 years), defect size is over 25 cm and they must agree to participate in the trial. Each participant is evaluated before surgery, on discharge, 3, 6, and 12 months after cranioplasty. The primary outcome is the infection, implant failure and implant deformation requiring revision surgery within 12 months. Secondary outcomes include postoperative complication rate, neurological outcomes, motor function, and cosmetic outcome over a 6-month period. DISCUSSION Search for ideal implant materials is throughout the history of cranioplasty. This study will provide robust evidence for the choice of cranioplasty materials. TRIAL REGISTRATION NUMBER ChiCTR2000033406.
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Affiliation(s)
- Jingguo Yang
- Department of Neurosurgery, West China Hospital, Sichuan University
| | - Tong Sun
- Department of Neurosurgery, West China Hospital, Sichuan University
| | - Yikai Yuan
- Department of Neurosurgery, West China Hospital, Sichuan University
| | - Xuepei Li
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University
| | - Hang Yu
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, PR China
| | - Junwen Guan
- Department of Neurosurgery, West China Hospital, Sichuan University
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35
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Zhang J, Chen J. Letter: A Retrospective Comparative Analysis of Titanium Mesh and Custom Implants for Cranioplasty. Neurosurgery 2020; 87:E266-E267. [DOI: 10.1093/neuros/nyaa167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jibo Zhang
- Department of Neurosurgery Zhongnan Hospital of Wuhan University Wuhan, China
- Department of Neurologic Surgery Mayo Clinic Rochester, Minnesota
| | - Jincao Chen
- Department of Neurosurgery Zhongnan Hospital of Wuhan University Wuhan, China
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