Radiography and US of Os Peroneum Fractures and Associated Peroneal Tendon Injuries: Initial Experience

Abstract

Os peroneum fragment separation of 6 mm or more suggests os peroneum fracture and associated full-thickness peroneus longus tendon tear. Separation of 2 mm or less may be seen with nondisplaced os peroneum fractures and bipartite os peroneum.

Nonoperative Treatment of an Os Peroneum Fracture in a High-level Athlete: A Case Report

“…This is thought to be partly attributable to a functional disruption of the peroneus longus with associated weakness of eversion and plantar flexion of the first metatarsal. Although nonoperative treatment might be poorly tolerated if there is true functional incompetence of the peroneus longus musculotendinous unit, as can be assumed if the proximal os peroneum fragment migrates more than 6 mm [5], our patient did very well with nonoperative treatment of a minimally displaced fracture. Therefore it is important to distinguish between these two injury patterns.…”

“…Anatomic and radiographic studies have identified an os peroneum in 5% to 26% of the population [3,4,19,24,27]. This accessory bone is often unilateral and radiographically has rounded edges in uninjured patients [5,6,20].…”

“…There may be varying amounts of fracture displacement. If there is proximal migration of part of the ossicle, a functional rupture of the peroneus longus should be suspected [5,27,29]. Treatments for an os peroneum fracture include nonoperative management, fixation of the fracture, excision of the bone with direct repair of the tendon, and tenodesis of the peroneus longus to the peroneus brevis [7, 9, 10, 15, 18, 20-23, 27, 29, 30].…”

Peroneal Tendon Lesions in Athletes (Review)

“…Кроме того, разрывы малоберцового су-хожилия могут возникать при хронических заболеваниях, таких как нестабильность лате-ральной лодыжки голеностопного сустава, под-вывих малоберцового сухожилия (рис. 7), полая стопа и анатомические вариации, которые при-водят к стенозированию в заднелодыжковой борозде [7,9,24]. Разрывы сухожилий мало-берцовых мышц обычно находятся в пределах заднелодыжкового ложа, тем самым указывая, что они, скорее всего, случились из-за механи-ческой травмы в этой области (рис.…”

Ultrasound of the ankle

“…There is often an os peronei at this point. The presence of hypoechogenicity within the tendon surrounding this ossicle, associated hyperaemia and point tenderness would indicate the diagnosis of tendinopathy 8 .…”