Minimally Invasive Surgery: Transforming Modern Surgical Practice

Abstract

Background. Minimally invasive surgery (MIS)—encompassing laparoscopic, thoracoscopic, endoluminal, and robotic-assisted techniques—has reshaped operative practice across virtually every surgical specialty since the late 1980s. By accomplishing through small incisions or natural orifices what once required large open exposures, MIS aims to reduce surgical trauma while preserving therapeutic efficacy.

Objective. This narrative review traces the development of MIS, summarises the comparative evidence on clinical outcomes, surveys the rise of robotic-assisted surgery, and considers the limitations, costs, and future trajectory of minimally invasive practice.

Methods. We undertook a structured narrative review of peer-reviewed literature, systematic reviews and meta-analyses, and contemporary procedural and industry data, prioritising high-level comparative evidence and primary reporting.

Results. Across multiple specialties, MIS is consistently associated with reduced intraoperative blood loss, shorter hospital stay (commonly 20–30% shorter than open surgery for colorectal procedures), less postoperative pain, and lower wound-related morbidity, with broadly equivalent long-term oncological and functional outcomes in appropriately selected patients. Robotic-assisted surgery has expanded rapidly: da Vinci systems alone have now been used in more than 20 million procedures worldwide. Evidence is not uniformly favourable, however; in early-stage cervical cancer, MIS radical hysterectomy has been associated with worse oncological outcomes than open surgery, underscoring the importance of procedure-specific appraisal.

Conclusion. MIS has transformed modern surgery and is now the standard of care for many procedures. Its benefits are substantial but not universal, and must be weighed against cost, the learning curve, and procedure-specific evidence. Rigorous trials, structured training, and equitable access will determine the next phase of its evolution.