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Parálisis obstétrica del plexo braquial: resultados preliminares de la transferencia del nervio espinal accesorio al nervio supraescapular en 10 casos / Accessory nerve to suprascapular nerve transfer in obstetrical brachial plexus palsy: prelininary results in 10 cases
Valbuena, Sebastian.
Affiliation
  • Valbuena, Sebastian; Hospital El Cruce Dr. Néstor Carlos Kirshner. Servicio de Ortopedia y Traumatología. Kirchner. Florencio Varela. AR
Rev. Asoc. Argent. Ortop. Traumatol ; 80(2): 113-120, jun. 2015. ilus, tab
Article in Es | LILACS | ID: lil-757164
Responsible library: AR337.1
RESUMEN

Objetivo:

Evaluar los resultados preliminares en 10 casos de transferencias del nervio espinal accesorio al nervio supraescapular en parálisis obstétricas del plexo braquial. Materiales y

Métodos:

Entre 2010 y 2012, se realizaron 16 transferencias del nervio espinal accesorio al nervio supraescapular en parálisis obstétricas del plexo braquial. Se incluyeron 10 casos con un seguimiento mínimo de 18 meses. Se evaluó la fuerza muscular del hombro según la escala de Gilbert y se usaron escalas funcionales de Mallet y de Gilbert. Se compararon valores preoperatorios y posoperatorios, así como las diferencias entre parálisis de tipo parcial y total. Se usó la prueba de Student para valorar la significancia estadística de los datos.

Resultados:

El seguimiento promedio fue de 20.9 meses. Se hallaron valores medios preoperatorios de fuerza de abducción de 0,48 M, y posoperatorios de 2,70 M; los valores de rotación externa preoperatorios fueron de 0 M y, al final del seguimiento, de 2,4 M. Todos los pacientes mostraban patrones preoperatorios de tipo 1 tanto de la escala de Mallet como la de Gilbert, con valores posoperatorios promedio de 3,2 y 3,5, respectivamente. Se hallaron diferencias estadísticamente significativas entre estos valores.

Conclusiones:

Esta serie presenta valores preliminares con un seguimiento corto y su principal crítica es el bajo número de casos. Los resultados funcionales obtenidos coinciden con los de otros reportes, y avalan su uso en las reconstrucciones del plexo braquial que requieran aporte extraplexual.
ABSTRACT

Background:

To evaluate the preliminary results of spinal accessory nerve to suprascapular nerve transfer in obstetric brachial plexus palsy.

Methods:

Between 2010 and 2012, 16 transfers of spinal accessory nerve to suprascapular nerve were performed in obstetric brachial plexus palsy. Ten patients with a minimum follow-up of 18 months were included. Values of muscle power were assessed according to the Gilbert scale, and functional scales of the shoulder (Mallet and Gilbert) were used. Preoperative and postoperative values, and the differences between partial and total paralysis results were compared. Student test was used for the statistical analysis.

Results:

The average follow-up was 20.9 months. Preoperative shoulder abduction power was 0.48 M, preoperative external rotation power was 0 M, and those values at the end of the follow-up were 2.70 M and 2.4 M, respectively. All patients had type 1 patterns of the Gilbert and Mallet scales, with mean postoperative values of 3.2 and 3.5, respectively. Statistically significant differences were found between these values.

Conclusions:

Limitations of this preliminary report are the short follow-up and the low number of cases. However, the functional results obtained are consistent with those from other reports, and they support the use of the spinal accessory nerve to suprascapular nerve transfer in brachial plexus reconstructions requiring an extra-plexual contribution.
Subject(s)
Key words
Full text: 1 Index: LILACS Main subject: Paralysis, Obstetric / Brachial Plexus / Nerve Transfer / Brachial Plexus Neuropathies / Accessory Nerve Type of study: Observational_studies / Prognostic_studies Limits: Child / Humans Language: Es Journal: Rev. Asoc. Argent. Ortop. Traumatol Journal subject: ORTOPEDIA Year: 2015 Type: Article
Full text: 1 Index: LILACS Main subject: Paralysis, Obstetric / Brachial Plexus / Nerve Transfer / Brachial Plexus Neuropathies / Accessory Nerve Type of study: Observational_studies / Prognostic_studies Limits: Child / Humans Language: Es Journal: Rev. Asoc. Argent. Ortop. Traumatol Journal subject: ORTOPEDIA Year: 2015 Type: Article