An effective method to reduce ischemia time during total knee arthroplasty

Area of Science:

• Orthopedic Surgery
• Surgical Innovation
• Patient Outcomes

Background:

• Controversy exists regarding optimal tourniquet release timing during total knee arthroplasty (TKA).
• Effective hemostasis is crucial to minimize ischemia time and improve surgical outcomes.
• Intra-articular tamponade via closed arthrotomy closure is explored as a hemostatic method.

Purpose of the Study:

• To evaluate the safety and clinical efficacy of intra-operative tourniquet release following closed arthrotomy in TKA.
• To determine if this technique effectively reduces ischemia time and perioperative blood loss.
• To assess the impact on postoperative recovery, pain management, and functional outcomes.

Main Methods:

• Prospective cohort study of 72 primary unilateral TKAs.
• Two groups: study group (36 TKAs) with intra-operative tourniquet release after arthrotomy closure, and comparative group (36 TKAs) with tourniquet throughout.
• No surgical drains were used in either group.

Main Results:

• Significantly shorter tourniquet times in the study group (p<0.001).
• Reduced ischemic duration and perioperative blood loss observed in the study group.
• Similar postoperative analgesic consumption and inpatient stay, but improved early functional recovery and subjective performance.

Conclusions:

• Closed arthrotomy tamponade with drainage avoidance is an effective hemostasis method in TKA.
• Intra-operative tourniquet release following arthrotomy closure successfully reduces ischemia time.
• This approach offers potential benefits for early patient recovery in total knee arthroplasty.