Hemorrhoidectomy using the harmonic scalpel significantly reduces postoperative pain, operating time, and hospital stay compared to conventional Milligan-Morgan techniques. According to a prospective study from the Sri Ramachandra Institute of Higher Education and Research, patients using the harmonic scalpel experienced lower intraoperative blood loss and a reduced need for urinary catheterization.
Harmonic Scalpel vs. Conventional Hemorrhoidectomy: The Data
For patients with grade III and IV hemorrhoids, the Milligan-Morgan hemorrhoidectomy is the gold standard. A prospective observational study conducted between December 2024 and May 2026 at a tertiary teaching hospital compared this traditional method against the use of a harmonic scalpel (HS).
The results showed a stark contrast in recovery metrics. In the HS group, 41.5% of surgeries were completed in under 10 minutes, while only 3.4% of conventional surgeries met that mark. Blood loss was also markedly lower; 45.3% of HS patients lost less than 10mL of blood, whereas 0% of the conventional group achieved that result.
| Metric | Harmonic Scalpel (HS) | Conventional Technique |
|---|---|---|
| Operating Time (<10 min) | 41.5% | 3.4% |
| Blood Loss (<10 mL) | 45.3% | 0% |
| Hospital Stay (<3 days) | 88.7% | 22% |
| Urinary Catheterization | 1.9% | 15.3% |
Why Ultrasonic Energy Reduces Surgical Pain
The harmonic scalpel differs from traditional blades by using ultrasonic energy to cut and coagulate tissue simultaneously. According to the Sri Ramachandra Institute research, this technology limits lateral thermal spread and tissue injury.
The study measured this using the Visual Analog Scale (VAS). On postoperative day 0, the HS group reported a mean pain score of 1.89 ± 0.70, compared to 3.17 ± 0.75 in the conventional group. By day 2, pain for HS patients dropped to 0.55 ± 0.64, while the conventional group remained higher at 1.80 ± 0.92.
Impact on Hospital Recovery and Patient Outcomes
Faster surgical times and less trauma translate directly to shorter hospital stays. The study found that many patients who underwent HS hemorrhoidectomy were discharged in fewer than three days. In contrast, fewer conventional surgery patients left within that window, with some requiring longer hospitalization.
Postoperative urinary retention is another common complication of anorectal surgery. The data indicates a significant reduction in the need for urinary catheterization for HS patients (1.9%) compared to those in the conventional group.
While the HS group showed a lower rate of postoperative bleeding (1.9% vs 3.4%), the researchers noted that this specific difference was not statistically significant.
Future Directions in Anorectal Surgery
The Sri Ramachandra Institute study suggests that the harmonic scalpel is an effective alternative for higher-grade hemorrhoids, though it notes that the non-randomized nature of the study—where allocation was based on patient affordability—could introduce bias.
Frequently Asked Questions
Is the harmonic scalpel safer than traditional surgery?
According to the study, it is associated with lower intraoperative blood loss and fewer complications like urinary retention, though long-term safety data requires further multicenter validation.
Does the harmonic scalpel reduce recovery time?
Yes. Data shows a significant increase in patients discharged within three days compared to conventional methods.
Will I feel less pain with an ultrasonic hemorrhoidectomy?
The research indicates significantly lower pain scores on the Visual Analog Scale during the first three days following surgery compared to the Milligan-Morgan technique.
What are your thoughts on the trade-off between higher surgical costs and faster recovery? Let us know in the comments, or subscribe to our medical insights newsletter for the latest in surgical technology.
