Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

ABSTRACT There are several injuries potentially related to high-G exposure, including neck and back pain, spinal fractures, and pneumomediastinum. We present a young military pilot diagnosed with isolated fractures of the right 9th and 10th ribs via X-ray after high-G exposure (maximum G level: 9G). This patient presented with progressive and localized pain in the right anterior chest and flank region. After conservative treatment with rest and pain management, he recovered from the rib fractures and completed all profile challenges in the advanced high-G training program. A review of the annual health examination of the pilot did not show any rib lesions or other related illnesses. He was qualified for flying class II and considered fit for flight training. His medication history was unremarkable, and he did not have a family history of malignancy, osteoporosis, or osteopenia. He also denied having previously experienced trauma of the rib cage or participated in any strenuous military training program or exercise before centrifuge training. The potential explanations for the multiple rib fractures are repetitive stress from the anti-G straining maneuver and anti-G suit compression of the abdominal bladder. To our knowledge, consecutive rib fractures related to high-G exposure have never been documented. This report may increase the awareness of flight surgeons and training units regarding the risk of chest wall injuries during high-G exposure and encourage them to use multiple diagnostic tools to determine the correct diagnosis.

Original publication




Journal article


Military Medicine


Oxford University Press (OUP)

Publication Date