Hypothenar fat pad flap vs conventional open release in primary carpal tunnel syndrome: A randomized controlled trial

doi:10.5312/wjo.v8.i11.846

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Randomized Controlled Trial

World J Orthop. Nov 18, 2017; 8(11): 846-852
Published online Nov 18, 2017. doi: 10.5312/wjo.v8.i11.846

Table 1 Demographics data of conventional open carpal tunnel release and hypothenar fat pad flap groups

	COR group (n = 17)	HTFPF group (n = 19)	P value
Age (yr) mean ± SD	50.4 (1.5)	53.3 (1.5)	0.182
Gender (%)			0.231
Male	0 (0)	2 (11)
Female	17 (100)	17 (89)
Body mass index mean ± SD	28.4 (1.3)	25.5 (0.9)	0.064
Hand dominant (%)			1
Right	15 (88)	17 (90)
Left	2 (12)	2 (10)
Side of operation (%)			0.017
Right	6 (35)	15 (79)
Left	11 (65)	4 (21)
Onset of duration mo mean ± SD	11.8 (2.3)	13.3 (2.5)	0.675

COR: Conventional open release; HTFPF: Hypothenar fat pad flap.

Table 2 Results of levine score

Levine score	Preop., mean ± SD		6 wk postop., mean ± SD		12 wk postop., mean ± SD		P value
Levine score	COR	HTFPF	COR	HTFPF	COR	HTFPF	P value
Symptom severity scale	2.6 (0.6)	2.5 (0.5)	1.7 (0.5)	1.7 (0.5)	1.5 (2.5)	1.1 (0.1)	> 0.05
Functional status scale	2.4 (1.0)	2.5 (0.9)	1.8 (0.7)	1.7 (0.6)	1.4 (0.6)	1.1 (0.2)	> 0.05

COR: Conventional open release; HTFPF: Hypothenar fat pad flap.

Table 3 Results of grip and pinch strength

	Preop., mean ± SD		6 wk postop., mean ± SD		12 wk postop., mean ± SD		P value
	COR	HTFPF	COR	HTFPF	COR	HTFPF	P value
Grip strength (Pound)	29.2 (15.0)	28.9 (14.1)	22.3 (12.8)	21.4 (10.4)	30.4 (13.0)	31.4 (10.8)	> 0.05
Pinch strength (Pound)	12.0 (3.3)	11.9 (3.9)	11.0 (2.8)	11.5 (3.4)	13.3 (3.3)	15.5 (3.0)	> 0.05

COR: Conventional open release; HTFPF: Hypothenar fat pad flap.

Table 4 Results of pain (visual analog scale), 2-point discrimination and semmes-weinstein monofilament

	Preop., mean ± SD		6 wk postop, mean ± SD		12 wk postop, mean ± SD		P value
	COR	HTFPF	COR	HTFPF	COR	HTFPF	P value
Pain (VAS)	4.6 (3.4)	4.4 (3.4)	0.4 (1.0)	0.5 (1.1)	0 (0)	0 (0)	> 0.05
2-PD (mm)	3.5 (1.0)	4.7 (2.9)	3.1 (0.8)	2.9 (0.7)	2.5 (0.5)	2.7 (0.8)	> 0.05
SWM	3.7 (0.3)	4.1 (1.0)	3.4 (0.4)	3.4 (0.5)	3.3 (0.4)	3.1 (0.4)	> 0.05

COR: Conventional open release; HTFPF: Hypothenar fat pad flap; VAS: Visual analog scale; 2-PD: 2-point discrimination; SWM: Semmes-weinstein monofilament.

Citation: Kanchanathepsak T, Wairojanakul W, Phakdepiboon T, Suppaphol S, Watcharananan I, Tawonsawatruk T. Hypothenar fat pad flap vs conventional open release in primary carpal tunnel syndrome: A randomized controlled trial. World J Orthop 2017; 8(11): 846-852
URL: https://www.wjgnet.com/2218-5836/full/v8/i11/846.htm
DOI: https://dx.doi.org/10.5312/wjo.v8.i11.846