Closed wound drainage in total hip or total knee replacement. A prospective, randomized study

Area of Science:

• Orthopedic Surgery
• Surgical Outcomes
• Patient Recovery

Background:

• Postoperative wound management is crucial in total joint replacement (TJR) surgery.
• The use of closed wound-drainage systems is a common practice to manage fluid accumulation.
• Evidence comparing drained versus undrained wounds in TJR is limited.

Purpose of the Study:

• To prospectively evaluate the necessity and impact of postoperative wound drainage in total joint replacements.
• To compare outcomes between patients with and without closed wound-drainage systems.
• To assess the influence of drainage on excessive fluid loss, blood transfusion requirements, and joint mobility.

Main Methods:

• A prospective randomized trial involving 415 patients undergoing total knee replacement (TKR) or total hip replacement (THR).
• Patients were randomized to either a closed wound-drainage system or no drainage postoperatively.
• Outcomes assessed included excessive drainage, homologous and autologous blood transfusions, hemoglobin levels, and range of motion (ROM) for TKR patients.

Main Results:

• No statistically significant difference was observed in the incidence of excessive postoperative drainage between drained and undrained wounds.
• The amount of blood transfused and preoperative/postoperative hemoglobin levels showed no significant variations between the groups.
• For TKR patients, daily range of motion during the first seven postoperative days was comparable in both drained and undrained wound cohorts.

Conclusions:

• Closed wound-drainage systems do not appear to offer significant benefits in reducing excessive drainage or blood loss in total joint replacements.
• The routine use of drains may not be necessary for TKR and THR, potentially simplifying postoperative care.
• Further research could explore patient selection criteria for drainage use in TJR.