Precision in Complexity: Efficacy of VSP and Mock Surgery in Stock Prosthetic Reconstruction for TMJ Re-Ankylosis

Introduction: Temporomandibular joint ankylosis (TMJA) management have evolved from gap arthroplasty to total joint replacement (TJR). TMJ Re-ankylosis presents significant challenge in achieving long-term treatment success. This study evaluates the effectiveness of virtual surgical planning (VSP) guided stock TJR in TMJ re-ankylosis. Materials and method: 10 patients with TMJ re-ankylosis were screened according to inclusion and exclusion criteria. Preoperative virtual surgical planning and mock surgery was performed followed by TJR using Stock TMJ Replacement System. Result: This study showed statistically significant improvement in maximum interincisal opening (MIO) from 1.83mm to 37.83mm (p< 0.001), bite force from 0kg to 10.31kg (p< 0.001), masticatory efficiency, diet consistency post stock-TJR with a mean follow-up of 60months. Mandibular range of movements and quality of life improved markedly with minimal postoperative complications. VSP and mock surgery enhanced precision, reduced the intra-operative duration and complications. Conclusion: This study highlights the clinical success of dual validation protocol by integrating VSP guided stock-TJR in TMJ Re-ankylosis. Mock surgery verified digital precision with intraoperative flexibility, ensures optimal prosthesis fit, restored mandibular function, improvement in quality of life (QoL) and functional rehabilitation. With ongoing advancements, VSP guided stock-TJR protocol can be considered effective in TMJ re ankylosis.