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Observational Study
©The Author(s) 2026.
World J Orthop. Jan 18, 2026; 17(1): 110090
Published online Jan 18, 2026. doi: 10.5312/wjo.v17.i1.110090
Table 2 Intraoperative and implant variables, n (%)

Knees (n = 139)
Operative time (minutes) (range)1100.8 (71 to 196)
Anesthesia
General14 (10.1)
Spinal/regional/block125 (89.9)
Laterality
Right61 (43.9)
Left76 (54.7)
Bilateral2 (1.4)
Patellar resurfacing/fixation
Cemented123 (88.5)
Porous (cementless)12 (8.6)
Non-resurfaced4 (2.9)
Bearing surface
Oxidized zirconium-on-polyethylene39 (28.1)
Cobalt chrome-on-polyethylene100 (71.9)


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