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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 2 Comparison of postoperative complications and procedures of patients receiving primary TKA

From: Arthrofibrosis after total knee arthroplasty: patients with keloids at risk

Joint complication TKA w/ keloid (n = 11,461) Primary TKA (n = 534,414) ORa (95% CI)
Ankylosis, n (%)
 30-day 69 (0.6) 2006 (0.4) 1.65 (1.3–2.1)
 90-day 347 (3.0) 14,485 (2.7) 1.17 (1.0–1.3)
 6-month 475 (4.1) 19,413 (3.6) 1.19 (1.1–1.3)
 1-year 593 (5.2) 22,890 (4.3) 1.26 (1.2–1.4)
Manipulation under anesthesia, n (%)
 30-day 23 (0.2) 1,009 (0.2) 1.1 (0.7–1.6)
 90-day 393 (3.4) 1, 256 (3.2) 1.1 (1.0–1.2)
 6-month 495 (4.3) 21,421 (4.0) 1.1 (1.0–1.2)
 1-year 528 (4.6) 22,257 (4.2) 1.2 (1.1–1.3)
Lysis of adhesions*, n (%)
 90-day 13 (0.1) 299 (0.1) 2.2 (1.2–3.6)
 6-month 33 (0.3) 794 (0.2) 2.0 (1.4–2.8)
 1-year 54 (0.5) 1,361 (0.3) 1.9 (1.4–2.5)
Prosthetic revision, n (%)
 6-month 42 (0.4) 2,283 (0.4) 0.9 (0.6–1.2)
 1-year 77 (0.7) 3,999 (0.8) 0.9 (0.7–1.2)
 2-year 141 (1.2) 6,442 (1.2) 1.1 (0.9–1.3)
  1. TKA total knee arthroplasty, OR odds ratio, CI confidence interval
  2. aAdjusting for sex, age, BMI, diabetes, tobacco use, and CCI
  3. *Data for 30-day lysis of adhesions not available