Long-term outcomes of the four-corner fusion of the wrist: A systematic review

Table 4 Range of motion and grip strength

Author	Grip strength (%)		ROM Flexion-extension		ROM radial-ulnar (%)
	Preop	Postop	Preop	Postop	Preop	Postop
Cha SM	71	85	84	66	45	39
Luegmair M	38	70	57	64	24	30
Bain GI	27	30	78	57	35	30
Berkhout MJL	-	-	-	87	-	49
Kitzinger HB	69	80	68	62	35	34
Trail I	-	53	-	60	-	26
Neubrech F	-	85	-	63	-	30
Odella S	-	75	-	79	-	-
Traverso P	-	-	-	69	-	33
Wagner ER	60	65	-	54	-	32
Williams J	-	-	-	-	-	-
Averages	53	68	72	66	35	34
SD	± 17	± 18	± 10	± 10	± 8	± 6

ROM: Range of motion; SD: Standard deviation; Preop: Preoperative; Postop: Postoperative.