. 2019 Sep 13;16(5):664–673. doi: 10.1177/1558944719873430

Table 2.

Preoperative and Procedural Characteristics of Hemiresection Interposition Arthroplasty.

Preoperative and Procedural Characteristics	Total n = 66 (100%)	Responder n = 31 (51%)	DASH score P value	HIT arthroplasty questionnaire P value	NRS pain P value	NRS satisfaction P value
Dominant hand affected,^* No. (%)	35 (61)	13 (48)	.671^a	.392^a	.075^b	.397^b
Prior surgery on ipsilateral wrist,^† No. (%)	14 (22)	7 (23)	.918^a	.616^a	.052^b	.030 ^b
Prior ipsilateral wrist fracture, No. (%)	9 (14)	4 (13)	.428^a	.361^a	.010 ^b	.043 ^b
Distal radius fracture	5 (56)	3 (75)
Distal radius fracture with DRUJ dislocation	1 (11)	0 (0)
Ulna fracture	2 (22)	1 (25)
Unknown	1 (11)	0 (0)
Radiology, No. (%)
Visible arthritic changes^‡	42 (84)	20 (80)	.877^a	.657^a	.175^b	.417^b
Subluxation^§	24 (51)	9 (38)	.020 ^a	.931^a	.875^b	.010 ^b
Indication for surgery, No. (%)			.196^c	.283^c	.004 ^d	.305^d
Inflammatory arthritis	55 (83)	25 (81)
Posttraumatic arthritis	9 (14)	5 (16)
Other	2 (3)	1 (3)
Concomitant wrist diagnosis at time of surgery,^† No. (%)	43 (66)	20 (65)	.875^a	.469^a	.878^b	.111^b
Tendon rupture	23 (35)	10 (32)	.715^a	.564^a	.280^b	.049 ^b
Dorsal (teno)synovitis	19 (29)	8 (26)	.818^a	.041 ^a	.211^b	.594^b
Nonunion/Malunion	2 (3)	2 (6)	.646^a	.857^a	.029 ^b	.167^b
Caput ulnae syndrome	2(3)	1 (3)	NA	NA	NA	NA
DRUJ dislocation	2 (3)	1 (3)	NA	NA	NA	NA
Other^**	10 (15)	6 (19)	.928^a	.557^a	.352^b	.391^b
Concomitant procedures performed, No. (%)	65 (98)	31 (100)
Total wrist replacement	6 (9)	2 (6)	.233^a	.827^a	.171^b	.897^b
Wrist arthrodesis	20 (30)	12 (39)	.322^a	.281^a	.517^b	.572^b
Radiolunate arthrodesis	4 (6)	1 (3)	NA	NA	NA	NA
Carpectomy	6 (9)	4 (13)	.973^a	.361^a	.380^b	.569^b
DRUJ reconstruction	4 (6)	1 (3)	NA	NA	NA	NA
Tendon transfer	21 (32)	10 (32)	.715^a	.564^a	.280^b	.049 ^b
Posterior interosseous neurectomy	48 (72)	24 (77)	.243^a	.419^a	.007 ^b	.224^b
(Teno)synovectomy	46 (70)	20 (65)	.833^a	.605^a	.210^b	.019 ^b
Other^††	15 (25)	3 (10)	.597^a	.577^a	.213	.085^b

Note. DASH = Disabilities of the Arm, Shoulder and Hand; DRUJ = distal radioulnar joint; HIT = hemiresection interposition technique; NRS = Numeric Rating Scale.

Missing cases: *9 missing; ^†1 missing; ^‡16 missing; ^§19 missing.

^**

Bone spicules, carpal tunnel release, dislocation of hand joints other than DRUJ, joint destruction other than DRUJ; ^††Thumb arthroplasty, bursectomy, carpal tunnel release, capsulodesis, intercarpal fusion, open reduction and internal fixation, distal radius osteotomy, plate removal, tendon release, ulnar shortening osteotomy.

Statistical tests used: ^aIndependent t test, ^bMann-Whitney U test, ^cAnalysis of variance, ^dKruskal-Wallis test. Bold font denotes significant P value.