Table 3.

Complications found in patients in the high-flexion CR, high-flexion PS, and standard CR TKA groups

Group	Number of complications	Type of complication	Grade*
High-flexion CR	7	2 superficial infection	II
		2 deep vein thrombosis	I
		1 pneumonia treated with antibiotics	II
		1 transient confusion not requiring therapy	I
		1 urinary tract infection	II
High-flexion PS	6	1 plural effusion	II
		1 deep vein thrombosis	I
		1 pneumonia treated with antibiotics	II
		2 urinary tract infection	II
		1 noninfectious diarrhea	I
Standard CR	4	1 superficial infection	I
		1 transient arrhythmia not requiring treatment	I
		1 urinary tract infection	II
		1 constipation requiring medication	II

* Severity classification grade from Dindo et al. [12]; CR = PCL retaining; PS = PCL substituting.