تعريف
A navicular fracture is a fracture of the navicular bone of the foot, a bone on the top of the midfoot. Athletes are particularly susceptible to fractures of the navicular bone. (There is also a navicular bone in the wrist.)
أسباب
A navicular fracture can be caused by a fall, severe twist, or direct trauma to the navicular bone. It can also be caused by repeated stress to the foot, creating a fracture not due to any acute trauma (a stress fracture).
عوامل الخطر
عامل الخطر هو الشيء الذي يزيد من فرصتك في الإصابة بمرض أو حالة.
The following factors may increase your risk of a navicular fracture:
- صدمة
- High-impact sports (eg, track and field, gymnastics, tennis, basketball)
- Being an adolescent
- In women, abnormal or absent menstrual cycles
- Military recruits
- Osteoporosis or other bone conditions
الأعراض
Symptoms of a navicular fracture include:
- Vague, aching pain in the top, middle portion of your foot, which may radiate along your arch
- Increasing pain with activity
- Pain on one foot only
- Altered gait
- Pain that resolves with rest
- Swelling of the foot
- Tenderness to touch on the inside aspect of the foot
التشخيص
Your doctor will ask about your symptoms and medical history, and perform a physical exam, which will include a thorough examination of your foot. Other tests may include:
- الأشعة السينية - اختبار يستخدم الإشعاع لالتقاط صورة لهياكل داخل الجسم ، وخاصة العظام
- Bone scan—a test that creates an image of the bones by using a low-dose radioactive substance injected into a vein
- الأشعة المقطعية — نوع من الأشعة السينية التي تستخدم الكمبيوتر لالتقاط صور للهياكل داخل الجسم
- MRI scan —a test that uses magnetic waves to make pictures of structures inside the body. This is particularly useful with stress fractures.
العلاج
تحدث مع طبيبك حول أفضل خطة علاجية لك. تشمل خيارات العلاج ما يلي:
Nonsurgical Treatment
Most cases of navicular fracture respond well to being placed in a cast that holds the bones in place. You will need to use crutches to help you walk. Once the bone has healed, your doctor will recommend a rehabilitation program that will allow you to eventually return to your normal activities.
جراحة
In rare cases of severe fracture, you may need surgery to realign the bone. This involves placing a metal plate and/or screws or pins to hold the bone in place. You will need to wear a cast or splint after the surgery. You will also need to use crutches to help you walk.
الوقاية
To prevent navicular fractures and other fractures of the foot:
- Wear well-fitting, supportive shoes appropriate for the type of activity you are doing.
- اتباع نظام غذائي غني بالكالسيوم وفيتامين د.
- Do weight-bearing exercises to build strong bones.
- Build strong muscles and practice balancing exercises to prevent falls.