Isolated avulsion fracture of the first metatarsal base at the peroneus longus tendon attachment: a case report
- 48 Downloads
Avulsion fractures of the first metatarsal (MT1) base at the peroneus longus (PL) tendon attachment are rare and may be undiagnosed during an emergency visit. If the injury is not treated properly, chronic pain or persistent impairment for inversion and plantar-flexion of the first ray may occur. This case report presents a 30-year-old woman who presented 10 weeks post trauma to a foot and ankle surgeon due to a swollen right midfoot with diffuse tenderness over the medial Lisfranc joint. Further evaluation showed an isolated avulsion fracture of the first metatarsal, which was undiagnosed during the emergent visit following the accident. In this case, the patient was successfully treated conservatively. The goal of this article is to raise awareness of this rare injury for radiologists and orthopedic surgeons.
KeywordsPeroneus longus tendon Avulsion fracture Lisfranc injury
Compliance with ethical standards
Conflict of interests
Nicola Krahenbuhl is supported by a grant from the Swiss National Science Foundation (SNF; grant number: P2BSP3_174979).
- 2.Kwak HY, Bae SW. Isolated avulsion fracture at the plantar lateral base of the first metatarsal: a case report. Foot Ankle Int. 2000;21(10):864–7.Google Scholar
- 4.Zermatten P, Crevoisier X. Avulsion fracture of the peroneus longus tendon insertion at the base of the first metatarsal: report of a case. Foot Ankle Surg. 2011;17:e10–2.Google Scholar
- 7.Hardcastle PH, Reschauer R, Kutscha-Lissberg E, Schoffmann W. Injuries to the tarsometatarsal joint. incidence, classification and treatment. J Bone Joint Surg. 1982;64(3):349–56.Google Scholar
- 10.Patil V, Frisch NC, Ebraheim NA. Anatomical variations in the insertion of the peroneus (fibularis) longus tendon. Foot Ankle Int. 2007;28(11):1179–82.Google Scholar