Robotic Surgery in Orthopaedics

Robotic Surgery in Orthopaedics - Precision Pioneers

• Definition: Use of robotic systems to enhance surgeon's ability during orthopaedic procedures.
• Goals: ↑Precision, ↑Accuracy, ↑Safety, ↓Invasiveness, ↓Radiation exposure, improved implant positioning & patient outcomes.
• Components:
  • Robotic arm: Executes surgical tasks.
  • Computer console: Surgeon interface, pre-operative planning.
  • Tracking system: Monitors patient & instrument position.
• Types:
  • Active: Robot performs pre-programmed tasks (e.g., ROBODOC).
  • Semi-active: Surgeon guides robot, robot provides haptic feedback & defines safe zones (e.g., MAKO, NAVIO).
  • Passive: Robot holds/positions instruments/endoscopes (e.g., AESOP).

⭐ Robotic assistance in unicompartmental knee arthroplasty (UKA) has shown superior accuracy in component positioning compared to conventional techniques.

• Benefits: Precise bone cuts, optimal implant alignment, potentially faster recovery, reduced outliers.
• Limitations: High cost, steep learning curve, increased operative time initially, specialized training required.
• Applications: Total Knee Arthroplasty (TKA), Total Hip Arthroplasty (THA), UKA, Spine surgery, Trauma (pelvic fracture fixation).

Robotic Surgery in Orthopaedics - The Bot Brigade

• Robotic System Types:
  • Active: Robot autonomously executes pre-programmed surgical tasks (e.g., ROBODOC).
  • Passive: Surgeon directly controls robot; system offers enhanced stability/navigational guidance (e.g., Navio). Haptic feedback.
  • Semi-active (Shared Control): Surgeon leads, robot provides haptic boundaries, constraining actions to safe zones (e.g., MAKO, ROSA).
• Key Components:
  • Robotic arm: Holds & manipulates surgical tools.
  • Navigation system: Tracks patient anatomy & instruments (optical/EM).
  • Computer console: For pre-operative planning and intra-operative control.

⭐ MAKO system (semi-active) for arthroplasty enhances surgeon's control with haptic feedback, improving implant positioning accuracy and potentially reducing revision rates.

Robotic Surgery in Orthopaedics - Bots in Action

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Robotic Surgery in Orthopaedics - Edge & Hurdles

• Edge (Advantages):
  • ↑ Precision & accuracy: component placement, limb alignment (THA, TKA).
  • ↓ Intra-op errors & outliers.
  • Reduced soft tissue trauma, ↓ blood loss.
  • Potential for ↑ implant survivorship & better functional outcomes.
  • Advanced pre-operative 3D planning.
• Hurdles (Disadvantages & Challenges):
  • High acquisition & maintenance costs.
  • Steep learning curve for surgeons & staff.
  • ↑ Initial operative duration.
  • Specific complications: pin-tract issues, neurovascular injury.
  • Radiation exposure (fluoroscopy-based systems).
  • Lack of haptic feedback (some systems).
  • Limited long-term data for all applications.

⭐ Robotic systems significantly improve acetabular cup inclination and anteversion accuracy in THA, aiming to ↓ dislocation rates.

High‑Yield Points - ⚡ Biggest Takeaways

• Robotic surgery boosts precision and accuracy in implant placement (e.g., TKA, THA).
• Types: Active (autonomous), Semi-active (haptic-guided, e.g., MAKO), Passive (navigation).
• Reduces alignment outliers, potentially improving implant longevity and function.
• May decrease soft tissue trauma, blood loss, and enable faster recovery.
• Relies on preoperative CT/MRI for 3D planning and precise execution.
• Limitations: High cost, steep learning curve, and initial longer operative times.
• Widely used in knee/hip arthroplasty and spine surgery.