Outcomes of stress fractures of the talus.
BACKGROUND
Stress fractures of the talus are rare, and only a few small studies have been published. In the absence of follow-up studies, the outcomes of these injuries are unknown.


OBJECTIVE
Traumatic fractures of the talus frequently heal poorly, and stress fracture healing might remain inadequate. The purpose of this study was to determine the outcome of stress fractures of the talus treated in the authors' institution with reduced exercise and nonweightbearing.


METHODS
Case series (prognosis); Level of evidence, 4.


METHODS
Patients with a diagnosed stress fracture in the talus by magnetic resonance imaging between April 1997 and March 2005 were recalled for a follow-up inspection by an orthopaedic surgeon, magnetic resonance imaging, and plain radiographs to determine the outcome of the injury.


RESULTS
One of the 9 patients in our sample declined the invitation, leaving 8 patients with 9 stress fractures in the talus who participated in the follow-up examination. Five patients displayed subchondral degeneration and edema near the original injury area in the follow-up magnetic resonance imaging. In 2 patients, the degeneration was also visible on the plain radiographs. Three patients had mild and 2 moderate symptoms after the mean follow-up time of 45 months (range, 12-74 months). No serious complications in the healing process were seen.


CONCLUSIONS
Stress fractures of the talus do not seem to seriously damage the foot. In a middle-term follow-up, however, minor to moderate symptoms and radiological degeneration of the injured area prevailed in roughly half of the patients.
Sormaala
Markus J
MJ
Centre of Military Medicine, PO Box 50, FIN-00301 Helsinki, Finland. markus.sormaala@welho.com
Niva
Maria H
MH
Kiuru
Martti J
MJ
Mattila
Ville M
VM
Pihlajamäki
Harri K
HK
D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D001855:Bone Marrow Diseases / Q000473:pathology; D002357:Cartilage Diseases / Q000473:pathology; D003446:Crutches; D004487:Edema / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D015775:Fractures, Stress / Q000473:pathology* / Q000628:therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D017063:Outcome Assessment, Health Care; D013628:Talus / Q000293:injuries* / Q000473:pathology*
D000894:Anti-Inflammatory Agents, Non-Steroidal