title: Dellon's anterior submuscular transposition of the ulnar nerve: Retrospective study of 82 operated patients with 11.5 years' follow-up.
abstract: Anterior submuscular transposition of the ulnar nerve described by Dellon can solve the dynamic component of cubital tunnel syndrome at the elbow. We carried out a retrospective, single-surgeon study. The McGowan scale as modified by Goldberg (MG) was used preoperatively and at the final assessment; the QuickDASH was completed at the final assessment. The cohort comprised of 82 patients (38 females, 44 males) with a mean age of 61.2 years (37-92). The preoperative MG grade was: stage I (52%), IIA (28%), IIB (16%), III (4%). Three postoperative complications (3.5%) were recorded: two hematomas that did not require surgical revision and one case of elbow stiffness that resolved with physical therapy. Mean follow-up was 11.1 years (11-12). We identified 5 cases of confirmed recurrences (5.9%), 7 of secondary deterioration (8.5%) and 3 of initially poor result (3.5%). Sixty-six patients (86%) considered themselves cured at the final assessment. The MG scale at the last follow-up was: stage 0 (85.5%), I (9%), IIA (5%), III (0%). The QuickDASH was 11.88 (11-16). Mean time to recurrence was 6.3 years (1.5-10). Dellon's anterior submuscular transposition can be considered a reliable procedure. Eighty-six percent of patients were cured and 6% recurrence rate was noted. However, this is a demanding procedure.
authors.affiliation: Département de chirurgie osseuse, centre hospitalier universitaire, 4, rue Larrey, 49933 Angers cedex 9, France. Electronic address: romain.lancigu@gmail.com.
authors.forename: R
authors.initials: R
authors.lastname: Lancigu
authors.affiliation: Centre de la main, 47, rue de la Foucaudière, 49800 Trélazé, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Saint Cast
authors.affiliation: Centre de la main, 47, rue de la Foucaudière, 49800 Trélazé, France.
authors.forename: G
authors.initials: G
authors.lastname: Raimbeau
authors.affiliation: Centre de la main, 47, rue de la Foucaudière, 49800 Trélazé, France.
authors.forename: F
authors.initials: F
authors.lastname: Rabarin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D020430:Cubital Tunnel Syndrome / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000379:methods; D012189:Retrospective Studies; D013997:Time Factors; D014459:Ulnar Nerve / Q000601:surgery*
keywords: Canal; Canalaire; Coude; Elbow; Nerf; Nerve; Transposition; Ulnaire; Ulnar