Learn Orthopedic Surgery, From the Source

Imaging in Orthopaedics

Myths and Misconceptions in Arthroplasty

Despite rapid advances in implant design, navigation, and perioperative protocols, arthroplasty surgery remains surrounded by persistent misconceptions — many of which influence both surgeon behavior and patient expectations. Understanding and debunking these myths is essential for evidence-based orthopaedic care.

Robotic Assisted UKA

Robotic unicompartmental knee arthroplasty (R-UKA) is an evolution of traditional unicompartmental knee replacement, developed to improve component accuracy, reduce outliers, and enhance short-term recovery. It is indicated for isolated medial or lateral compartment osteoarthritis (Kellgren–Lawrence grade IV) when the remaining compartments are intact. Approximately 20% of knee OA cases are unicompartmental — most involve the medial side.

Patellofemoral Arthroplasty

Ligament Balancing in TKA

• The basic aim is to get both extension and flexion gaps rectangular, equal and balanced. This balanced tension is important for implant stability and long-term survival. • Two popular knee replacement techniques currently practiced are: “measured resection” which depends on tibial and femoral bone cuts through resection guide and “balanced resection” which depends on optimising ligament tensioning. Both affect ligament balancing during the operation. • A stepwise approach for sequential ligament releases, according to the type of deformity, is essential to good outcomes.

Revision Knee Arthroplasty

Revision TKA is a complex reconstructive procedure performed to address implant failure due to infection, aseptic loosening, instability, periprosthetic fracture, or stiffness. Proper diagnosis requires a combination of clinical, radiographic, and laboratory evaluation to identify the cause of failure. Management aims to restore joint stability, mechanical alignment, and bone stock while minimizing complications. Modern evidence supports the use of modular stemmed and constrained implants to improve fixation, with either cemented or press-fit stems achieving comparable alignment outcomes. Prevention of periprosthetic joint infection (PJI) remains crucial, and intraosseous antibiotic prophylaxis provides superior local drug concentrations and lower infection rates compared to traditional intravenous administration.

Optimal Tightrope Positioning for Adequate Syndesmotic Stabilization in Simulated Syndesmotic Injuries

Foot Ankle Orthop. 2025 Jun 19;10(2):24730114251342243. doi: 10.1177/24730114251342243. eCollection 2025 Apr. Optimal Tightrope Positioning for Adequate Syndesmotic Stabilization in Simulated Syndesmotic Injuries Mark A Goss et al.

Alignment Techniques in Total Knee Arthroplasty

Journal of Joint Surgery and Research (2023), Vol 1: 108–116, Yukihide Minoda

Quality of Life and Outcomes After Treatment Failure for Recurrent PJI of TKA

J Arthroplasty. 2026 May;41(5):1495-1501. doi: 10.1016/j.arth.2025.08.017. Epub 2025 Aug 19. Quality of Life and Outcomes After Treatment Failure for Recurrent Periprosthetic Joint Infection of Total Knee Arthroplasty: A Multicenter Retrospective Comparison of Transfemoral Amputation, Arthrodesis, and Permanent Spacer Romain Huguet et al.