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General Orthopaedics

SIMULTANEOUS BILATERAL TKA: SAFE, EFFECTIVE AND COST-EFFICIENT – AFFIRMS

Current Concepts in Joint Replacement (CCJR) Spring 2016



Abstract

Approximately 20% of patients undergoing primary unilateral total knee arthroplasty complain of severe pain in the contralateral knee, and 10% of patients who have had a primary total knee (TKA) undergo contralateral surgery within 1 year.

The number of patients suitable for primary TKA is rising, and so is the need for simultaneous bilateral TKA (BTKA) procedures. The advantages of single-stage BTKA include its low complication rates, high patient satisfaction, and cost-effectiveness. Others believe that there is increased morbidity and mortality.

The goal of reducing the exposure to repeated anaesthesia, total hospitalization and recovery time, and cost, while maintaining patient safety, is a laudable one. Our data suggest that bilateral TKA patients have a lower total operating time, use less pain medication, have a shorter hospital stay and lower overall treatment costs.

The cohort of patients selected for bilateral surgery in our unit is younger and has fewer comorbidities than unilateral controls. They have a high satisfaction rate and no increase in complication or readmission rates. We have seen a higher blood transfusion rate but no increase in cardiac, thromboembolic or septic complications.

The key to BTKA is patient selection and the implementation of efficient care and surgical pathways that includes a thorough pre-assessment, careful education and well-resourced aggressive post-operative physiotherapy. When appropriately applied, the benefits include a shorter overall recovery time and an accelerated return to everyday life and work.