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Mostrando entradas con la etiqueta tenotomía del subescapular. Mostrar todas las entradas
Mostrando entradas con la etiqueta tenotomía del subescapular. Mostrar todas las entradas

01 mayo 2017

Hombro/Shoulder. Podemos seguir con la tenotomía del subescapular

Subscapularis Tenotomy Versus Lesser Tuberosity Osteotomy for Total Shoulder Arthroplasty: A Systematic Review.

Louie PK, Levy DM, Bach BR Jr, Nicholson GP, Romeo AA.

Am J Orthop (Belle Mead NJ). 2017 Mar/Apr;46(2):E131-E138.

Abstract

Subscapularis tenotomy (ST) has been the standard method of mobilizing the subscapularis during the approach to a total shoulder arthroplasty (TSA). Recently, lesser tuberosity osteotomy (LTO), which avoids subscapularis complications, has gained in popularity. 

We performed a systematic review to elucidate any differences in clinical or radiographic outcomes between ST and LTO. Using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we identified clinical and/or radiographic TSA studies with minimum mean 2-year follow-up and level I to IV evidence.

Twenty studies (1420 shoulders, 1392 patients) were included in the study. The ST group had significantly more patients with osteoarthritis (P = .03) and fewer patients with posttraumatic arthritis (P = .04). At final follow-up, mean (SD) forward elevation improvements were significantly (P < .01) larger for the ST group, +50.9° (17.5°) than for the LTO group, +31.3° (0.9°). Complication rates were almost identical, but the ST group showed a trend (P = .31) toward fewer revisions (10.0% vs 16.2%). 

There were no differences in Constant scores, pain scores, or radiolucencies. Both approaches (ST, LTO) produced excellent outcomes. ST may result in wider range of motion and fewer revisions, but more studies are needed to further evaluate these results.


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Tenotomía del subescapular (TS) contra osteotomía del troquín en la artroplastia total del hombro:  revisión sistemática.

La tenotomía subescapular (TS) ha sido el método estándar para movilizar el subescapular durante el abordaje de una artroplastia total del hombro (ATH). Recientemente ha ganado popularidad la osteotomía del troquín (OT) ya que evita las complicaciones subescapulares. 

Realizamos una revisión sistemática para dilucidar cualquier diferencia en los resultados clínicos o radiográficos entre TS y OT. Utilizando las guías PRISMA (Preferred Reporting Items for Systematic Reviews y Meta-Analyses), identificamos estudios clínicos y / o radiográficos de PTH con un seguimiento mínimo de 2 años y pruebas de nivel de evidencia I a IV. 

Veinte estudios (1420 hombros, 1392 pacientes) fueron incluidos en el estudio. El grupo TS tuvo significativamente más pacientes con osteoartritis (p = 0,03) y menos pacientes con artritis postraumática (P = 0,04). En el seguimiento final, la mejora de la elevación media (SD) fue significativamente mayor(P <0,01) para el grupo TS, + 50,9 ° (17,5 °) que para el grupo OT, + 31,3 ° (0,9 °). Las tasas de complicación fueron casi idénticas, pero el grupo TS mostró una tendencia (p = 0,31) hacia menos revisiones (10,0% vs 16,2%). No hubo diferencias en las puntuaciones de Constant, las de dolor o en las radiotransparencias.

Ambos enfoques (TS, OT) produjeron excelentes resultados. La TS puede resultar en un rango más amplio de movimiento y menos revisiones, pero se necesitan más estudios para evaluar estos resultados.

11 abril 2017

Hombro / Shoulder: En la PTH escoge cerrar bien la osteotomía del troquín

How should I fixate the subscapularis in total shoulder arthroplasty? A systematic review of pertinent subscapularis repair biomechanics
 
John B. Schrock, Matthew J. Kraeutler, Charles T. Crellin, Eric C. McCarty, Jonathan T. Bravman
First Published April 5, 2017

Shoulder & Elbow
Article first published online: April 5, 2017
DOI: https://doi.org/10.1177/1758573217700833

Abstract

Background

The present study aimed to review the biomechanical outcomes of subscapularis repair techniques during total shoulder arthroplasty (TSA) to assist in clinical decision making.

Methods

A systematic review of multiple databases was performed by searching PubMed, Scopus, Cochrane Library, Google Scholar, and all databases within EBSCOhost to find biomechanical studies of subscapularis repair techniques in cadaveric models of TSA.

Results

Nine studies met the inclusion criteria. In the majority of studies, lesser tuberosity osteotomy (LTO) techniques had greater load to failure and less cyclic displacement compared to subscapularis tenotomy or peel methods. LTO repairs with sutures wrapped around the humeral stem demonstrated superior biomechanical outcomes compared to techniques using only a tension band. In terms of load to failure, the strongest repair of any study was a dual-row  LTO using four sutures wrapped around the stem.

Conclusions

Several cadaveric studies have shown superior biomechanical outcomes with LTO techniques compared to tenotomy. In the majority of studies, the strongest subscapularis repair technique in terms of biomechanical outcomes is a compression LTO. Using three or more sutures wrapped around the implant and the addition of a tension suture may increase the biomechanical strength of the LTO repair.