Bimaxillary Immediate Prosthetic Rehabilitation Using a Custom Maxillary Subperiosteal Implant and Fibula Free-Flap Mandibular Reconstruction After Tumor Ablation

Kevin C. Lee, Vladimir Frias, Can Ozturk, David L. Best et Michael R. Markiewicz.

Full text link: https://pubmed.ncbi.nlm.nih.gov/38376146/

Bimaxillary Immediate Prosthetic Rehabilitation Using a Custom Maxillary Subperiosteal Implant and Fibula Free-Flap Mandibular Reconstruction After Tumor Ablation

1. Scientific Reference

• Study Title: Bimaxillary Immediate Prosthetic Rehabilitation Using a Custom Maxillary Subperiosteal Implant and Fibula Free-Flap Mandibular Reconstruction After Tumor Ablation
• Authors: Kevin C. Lee, Vladimir Frias, Can Ozturk, David L. Best, and Michael R. Markiewicz.
• Journal: Journal of Craniofacial Surgery
• Year of Publication: 2024
• PMID: 38376146
• DOI: 10.1097/SCS.0000000000010042

2. Scientific Background

Restoring oral function after ablative surgery for maxillofacial tumors remains one of the most demanding challenges in oral and maxillofacial surgery. Extensive bone loss frequently prevents the placement of conventional endosseous dental implants, making functional rehabilitation particularly difficult. Recent developments in digital workflow, computer-aided design and manufacturing (CAD/CAM), and patient-specific implant production have renewed interest in modern subperiosteal implants as an alternative for selected patients with severe maxillary bone deficiency.

This publication explores the integration of several advanced reconstructive techniques within a single treatment strategy. By combining a patient-specific maxillary subperiosteal implant, fibula free-flap mandibular reconstruction, and immediate prosthetic rehabilitation, the authors illustrate how digital planning may facilitate comprehensive oral rehabilitation following oncologic resection. Rather than providing comparative clinical evidence, the report highlights the technical feasibility of an individualized reconstructive approach in an exceptionally complex clinical scenario.

3. Study Objective

The purpose of this publication is to describe the clinical application of a patient-specific maxillary subperiosteal implant used simultaneously with fibula free-flap mandibular reconstruction and immediate prosthetic rehabilitation of both dental arches following tumor ablation. The authors aim to document the feasibility of this multidisciplinary surgical and prosthetic workflow. No secondary objectives or research hypotheses are specified in the available abstract.

4. Methodology

Based on the available information, this publication should be classified as a case report. The authors describe the management of a single patient requiring complex maxillofacial reconstruction after tumor ablation. The treatment protocol combined placement of a customized maxillary subperiosteal implant, mandibular reconstruction using a fibula free flap, and immediate prosthetic rehabilitation during the same surgical procedure.

The abstract indicates that the implant was designed using contemporary digital technologies and modern manufacturing techniques. However, no additional methodological details are provided regarding digital planning, surgical workflow, implant fabrication, patient selection, prosthetic protocol, follow-up duration, or clinical outcome measures. These aspects are not specified in the information available.

5. Main Findings

The report documents the successful completion of a highly integrated reconstructive and prosthetic procedure combining several advanced surgical techniques within a single treatment session. According to the authors, this represents the first reported placement of a modern patient-specific maxillary subperiosteal implant in the United States. They also state that, to the best of their knowledge, this is the first published case worldwide combining a customized maxillary subperiosteal implant, simultaneous fibula free-flap reconstruction of the opposing arch, and immediate prosthetic rehabilitation of both arches.

Beyond these observations, the abstract provides no quantitative clinical outcomes. No information is reported regarding implant stability, prosthetic performance, osseointegration, functional recovery, esthetic outcomes, biological or mechanical complications, patient satisfaction, or long-term implant survival. Consequently, the findings are limited to demonstrating the technical feasibility of this combined treatment strategy.

6. Clinical Analysis

The principal contribution of this publication lies in its demonstration of how digital implant planning and microsurgical reconstruction can be integrated into a single personalized rehabilitation protocol. The report reflects the growing role of patient-specific implant design in addressing anatomical situations where conventional implant therapy may not be feasible because of extensive bone loss following oncologic surgery.

Modern subperiosteal implants differ substantially from earlier generations through the use of advanced imaging, digital planning, and customized manufacturing processes that improve anatomical adaptation. This case illustrates how these technological developments may expand reconstructive possibilities in carefully selected patients requiring complex oral rehabilitation.

Nevertheless, the clinical implications should be interpreted cautiously. As a single case report, the publication provides a low level of scientific evidence and does not establish clinical effectiveness or predictability. The absence of follow-up data, standardized outcome measures, complication reporting, and comparative analysis prevents any conclusions regarding long-term safety or superiority over alternative reconstructive approaches. Instead, the report should be viewed primarily as a proof of technical feasibility that may encourage further prospective clinical investigation.

7. Clinical Applications

Although limited to a single clinical case, this publication illustrates a potential application of patient-specific subperiosteal implants in highly complex reconstructive situations following oncologic surgery. The reported approach may be relevant when severe maxillary bone deficiency precludes the placement of conventional endosseous implants and when comprehensive rehabilitation requires simultaneous reconstruction of the opposing jaw.

The case also highlights the integration of digital planning, CAD/CAM technology, and personalized implant manufacturing within a multidisciplinary surgical workflow. However, the available data do not define specific clinical indications or support the routine adoption of this protocol. Additional clinical evidence is required before this approach can be considered a predictable treatment option beyond carefully selected cases.

8. Level of Evidence, Limitations, and Transparency

This publication represents a case report, corresponding to a low level of scientific evidence within the hierarchy of clinical research. Case reports are valuable for introducing innovative surgical concepts and generating new clinical hypotheses but cannot establish treatment efficacy or comparative effectiveness.

Several methodological limitations should be considered. The abstract does not report postoperative follow-up, objective clinical outcomes, implant survival, prosthetic performance, complication rates, or patient-reported outcomes. Furthermore, no comparison with alternative reconstructive techniques is presented.

The available information does not include any declaration regarding conflicts of interest, financial disclosures, or relationships with implant manufacturers. Therefore, no conclusions can be drawn on this aspect from the abstract alone.

9. Key Study Points

• Study design: Case report.
• Level of evidence: Low.
• Study population: One patient undergoing maxillofacial reconstruction after tumor ablation.
• Number of patients: One.
• Number of implants: Not specified in the available information.
• Follow-up duration: Not specified in the available information.
• Primary endpoint: Technical feasibility of combining a patient-specific maxillary subperiosteal implant, fibula free-flap mandibular reconstruction, and immediate bimaxillary prosthetic rehabilitation.
• Principal finding: Successful implementation of a multidisciplinary digital workflow described by the authors as the first reported case of its kind.
• Scientific conclusion: The publication demonstrates the technical feasibility of this personalized reconstructive strategy but does not provide evidence regarding long-term clinical performance.
• Main limitations: Single-patient report, absence of quantitative outcomes, no long-term follow-up, and no comparative analysis.

10. Scientific Impact

The principal scientific contribution of this report lies in documenting a novel integration of patient-specific implant technology with microvascular reconstruction and immediate prosthetic rehabilitation. According to the authors, this is the first published description of combining these procedures within a single surgical protocol, making the report particularly relevant from a technical and reconstructive perspective.

The publication also reflects the ongoing evolution of digitally designed subperiosteal implants. Advances in imaging, virtual surgical planning, and CAD/CAM manufacturing have renewed interest in customized implant solutions for patients with extensive maxillary bone loss. Although the present report cannot establish clinical superiority or long-term predictability, it demonstrates how digital technologies may expand reconstructive possibilities in highly selected patients.

Its greatest value therefore lies in opening new avenues for clinical research rather than providing definitive evidence for routine practice. Prospective studies involving larger patient cohorts, standardized outcome measures, and long-term follow-up will be essential to determine the reproducibility, safety, and durability of this treatment concept.

11. Editorial Conclusion

This case report presents an innovative multidisciplinary approach to immediate oral rehabilitation following tumor ablation by combining a patient-specific maxillary subperiosteal implant, fibula free-flap mandibular reconstruction, and immediate prosthetic restoration. It illustrates the growing role of digital technologies in complex implant rehabilitation and maxillofacial reconstruction.

Despite its originality, the publication should be interpreted within the context of its methodological limitations. As a single case report without long-term clinical outcomes, it demonstrates technical feasibility rather than treatment effectiveness. Future clinical investigations will be necessary to define the long-term role of this personalized reconstructive strategy in contemporary implant dentistry and oral and maxillofacial surgery.