Treatment of localized post-traumatic neuropathic pain in scars with 5% lidocaine medicated plaster

Figures & data

Figure 1 Percentage reduction in pain score (NRS) in patients treated with 5% lidocaine medicated plaster (LMP).

Figure 2 Percentage reduction in painful area in patients treated with 5% lidocaine medicated plaster (LMP).

Table 1 Percentage reductions in pain score and painful area in patients treated with 5% lidocaine medicated plaster

Reduction versus initial NRS score (%)	Patients (n, %)	Reduction versus initial painful area (%)	Patients (n, %)
75–100	8 (27.6)	75–100	15 (51.7)
50–74	12 (41.4)	50–74	10 (34.5)
25–49	6 (20.7)	25–49	3 (10.3)
0–24	3 (10.3)	0–24	1 (3.5)
Total	29 (100)	Total	29 (100)

Abbreviation: NRS, numeric rating scale.

Table 2 Functional improvement in patients treated with 5% lidocaine medicated plaster

Functional aspect showing improvement	Patients (n, %)
Ability to walk	8 (27.6)
Daily life activities	5 (17.2)
Increased tolerance of standing	3 (10.3)
Sleep quality	3 (10.3)
Increased tolerance of upper limb prosthesis use	2 (6.9)
Increased tolerance of trunk flexion	1 (3.5)

Table 3 Occupational impact of 5% lidocaine medicated plaster in active patients

Case	Time from returning to work to starting LMP (months)	Functional improvement with occupational impact	Previous job	Current job
1	41.6	Working with mouth	Construction worker	Mouth artista
2	39.2	Ability to walk and stand	Telephone line installer	Telephone line installer
3	21.0	Increased functionality of nondominant hand	Advertisement hoarding erector	Advertisement hoarding erector
4	18.9	Increased functionality of nondominant hand	Telephone line repairman	Gardenerb
5	12.0	Working with percussion tools	Maintenance mechanic	Maintenance mechanic
6	3.3	Sleep quality	Boiler worker	Boiler worker
7	1.9	Ability to walk	Foundry worker	Foundry worker
8	9.7	Increased functionality of dominant hand	Garment presser	Garment presser
9	5.2	Resumption of prosthesis usec	Shoe factory worker	Shoe factory worker
10	5.7	Improved tolerance of standing, squatting, going up/down stairs	Senior electrician	Senior electrician
11	6.1	Improved tolerance of standing	Restaurant chef	Restaurant chef
12	2.9	Heavy work with the dominant limb	Transformer factory worker	Transformer factory worker

a Amputations at both shoulders, prevented from working in a new job by painful dorsolumbar scar;

b Job changed for reasons unrelated to pain;

c Wrist disarticulation, unable to use prosthesis because of pain in superficial radial nerve region, underwent surgery three times without success.

Abbreviation: LMP, 5% lidocaine medicated plaster.

Figure 3 Painful surface area before (blue area) and after (red areas) treatment with 5% lidocaine medicated plaster (LMP).

Abbreviations: NRS, numerical rating scale; LMP, 5% lidocaine medicated plaster.