Table 4.

Minor Complications and Patient Positioning, Broken Down by Physician and Joint^a

Physician No.	Joint	Cases, n	Standard Patient Positioning	Vasovagal, n	Persistent Pain (>24 h), n	Need for Additional MRI, n
1	Knee	224	Supine	3	0	4
	Shoulder	116	Lateral	0	0	1
2	Knee	137	Sitting	5	0	2
	Shoulder	7	Sitting	0	0	0
3	Knee	7	Supine (knee flexed to 90°, extended, frog-leg standard)	0	0	0
	Shoulder	4	Sitting upright in examination chair	0	0	1
4	Knee	187	Seated with knee bent	2	0	2
	Shoulder	4	Lateral, holding IV pole	0	0	0
5	Knee	172	Supine	0	2	2
	Shoulder	51	Beach-chair	3
6	Knee	22	Supine, then seated with knee bent	1	0	0
	Shoulder	1	Seated	0	0	0
7	Knee	5	Lateral	1	0	0
	Shoulder	82	Beach-chair	3	0	0
8	Knee	39	Supine	1	0	2
9	Knee	19	Supine	1	0	0
10	Knee	127	Lying supine with legs flexed at knees, off end of examination table	2		3
	Shoulder	9	Sitting upright at end of examination table	0	0	0
11	Knee	50	Supine	0	0	0
	Shoulder	6	Beach-chair	2	0	0
12	Knee	56	Seated	2	2, different from vasovagal patients	0
	Shoulder	16	Seated	0		0
13	Knee	74	Supine	0	1	2
	Shoulder	4	2 seated, 2 lateral	1	0	1

^aIV, intravenous; MRI, magnetic resonance imaging.