Enrico Martin

262 Chapter 11 Table 3 Continued. Variable At least M3 Less than M3 P No loss of critical sensation Loss of critical sensation P Sensory deficit at presentation 37 (9.4%) 40 (25.5%) <0.001 25 (11.0%) 30 (39.5%) <0.001 Surgical margins R0 224 (57.0%) 98 (62.4%) 0.04 125 (54.8%) 47 (61.8%) 0.33 R1 84 (21.4%) 41 (26.1%) 64 (28.1%) 18 (23.7%) R2 Unknown 47 (12.0%) 12 (7.6%) 26 (11.4%) 10 (13.2%) 38 (9.7%) 6 (3.8%) 13 (5.7%) 1 (1.3%) Local recurrence 101 (28.0%) 50 (33.1%) 0.29 64 (29.9%) 21 (28.4%) 0.92 Involvement of PNS 63 (19.2%) 49 (35.8%) <0.001 49 (23.8%) 30 (44.8%) 0.002 M: medical research council muscle grade, N: number of patients, NA: not available, NF1: neurofibromatosis type 1, PNS: peripheral nerve surgeon