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Flexor Pollicis Longus Tendon Rupture After Volar Plating of a Distal Radius Fracture: Pronator Quadratus Plate Coverage May Not Adequately Protect Tendons

Objective: The senior author previously reported a case of rupture of the flexor policis longus tendon after volar plating of a distal radius fracture. We hypothesized that restoration of the pronator quadratus to its native position after plating might prevent this problem. Methods: The authors rep...

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Detalles Bibliográficos
Autores principales: Brown, Emile N., Lifchez, Scott D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Open Science Company, LLC 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216646/
https://www.ncbi.nlm.nih.gov/pubmed/22096615
Descripción
Sumario:Objective: The senior author previously reported a case of rupture of the flexor policis longus tendon after volar plating of a distal radius fracture. We hypothesized that restoration of the pronator quadratus to its native position after plating might prevent this problem. Methods: The authors report a new case of irritation of the flexor policis longus 2.5 years after volar plating of a distal radius fracture. The plate was in good contact with the bone, and the pronator quadratus had been restored to its native position. Despite this, there was a partial-thickness laceration of the tendon over the plate and a defect in the pronator quadratus muscle which had been between the plate and the tendon. Results: The patient was treated with removal of the plate and repair of the tendon. She never lost function of the flexor policis longus tendon and has full function of her hand. Conclusions: The authors believe that restoration of the pronator quadratus to its native position after volar plating of a distal radius fracture does protect the overlying flexor tendons. Even with this step, tendon irritation can still occur. The authors advise their patients at the time of discharge from initial treatment of their distal radius fracture to be vigilant for any evidence of flexor tendon irritation and to return for evaluation if they have any suspicion of this.