The interosseous crest of the ulna runs along the lateral surface of the ulnar shaft, mirroring the radial crest across the interosseous space. It provides the medial attachment of the interosseous membrane and separates the anterior and posterior compartments of the forearm.
| Articulations |
|
|---|---|
| Landmarks |
|
| Ossification | Formed from the primary ulnar ossification centre present from the second fetal month, with the olecranon epiphysis fusing at 14-16 years and the distal ulnar physis at 16-19 years. |
The interosseous crest of the ulna guides plate placement in ulnar shaft fractures and Monteggia injury repairs. Accurate restoration of the ulnar bow and crest alignment is essential for restoring forearm rotation. The crest is involved in periosteal stripping during comminuted shaft fractures.
Longitudinal disruption of the interosseous membrane between the radial and ulnar crests, usually with a radial head fracture, destabilises the whole forearm axis.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
