Fibula Bone - Introduction, Anatomy, Function, Injuries and Treatment.

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Chapters
0:09 Introduction
0:57 Anatomy
2:12 Function of fibula bone
3:08 inuries
3:27 signs and symptoms
4:07 Treatment of Fibula Bone
The fibula or calf bone is a leg bone on the lateral side of the tibia, to which it is connected above and below. It is the smaller of the two bones and, in proportion to its length, the most slender of all the long bones. Its upper extremity is small, placed toward the back of the head of the tibia, below the knee joint and excluded from the formation of this joint. Its lower extremity inclines a little forward, so as to be on a plane anterior to that of the upper end; it projects below the tibia and forms the lateral part of the ankle joint. The bone has the following components:
Lateral malleolus
Interosseous membrane connecting the fibula to the tibia, forming a syndesmosis joint
The superior tibiofibular articulation is an arthrodial joint between the lateral condyle of the tibia and the head of the fibula.
The inferior tibiofibular articulation (tibiofibular syndesmosis) is formed by the rough, convex surface of the medial side of the lower end of the fibula, and a rough concave surface on the lateral side of the tibia.
Blood supply
The blood supply is important for planning free tissue transfer because the fibula is commonly used to reconstruct the mandible. The shaft is supplied in its middle third by a large nutrient vessel from the fibular artery. It is also perfused from its periosteum which receives many small branches from the fibular artery. The proximal head and the epiphysis are supplied by a branch of the anterior tibial artery. In harvesting the bone the middle third is always taken and the ends preserved (4 cm proximally and 6 cm distally)
Development
The fibula is ossified from three centers, one for the shaft, and one for either end. Ossification begins in the body about the eighth week of fetal life, and extends toward the extremities. At birth the ends are cartilaginous.
Ossification commences in the lower end in the second year, and in the upper about the fourth year. The lower epiphysis, the first to ossify, unites with the body about the twentieth year; the upper epiphysis joins about the twenty-fifth year.
Head
The upper extremity or head of the fibula is of an irregular quadrate form, presenting above a flattened articular surface, directed upward, forward, and medialward, for articulation with a corresponding surface on the lateral condyle of the tibia. On the lateral side is a thick and rough prominence continued behind into a pointed eminence, the apex (styloid process), which projects upward from the posterior part of the head.
The prominence, at its upper and lateral part, gives attachment to the tendon of the biceps femoris and to the fibular collateral ligament of the knee-joint, the ligament dividing the tendon into two parts.
The remaining part of the circumference of the head is rough, for the attachment of muscles and ligaments. It presents in front a tubercle for the origin of the upper and anterior fibers of the peroneus longus, and a surface for the attachment of the anterior ligament of the head; and behind, another tubercle, for the attachment of the posterior ligament of the head and the origin of the upper fibers of the soleus.
Body
The body of the fibula presents four borders - the antero-lateral, the antero-medial, the postero-lateral, and the postero-medial; and four surfaces - anterior, posterior, medial, and lateral.
Borders
The antero-lateral border begins above in front of the head, runs vertically downward to a little below the middle of the bone, and then curving somewhat lateralward, bifurcates so as to embrace a triangular subcutaneous surface immediately above the lateral malleolus. This border gives attachment to an intermuscular septum, which separates the extensor muscles on the anterior surface of the leg from the peronaei longus and brevis on the lateral surface.
The antero-medial border, or interosseous crest, is situated close to the medial side of the preceding, and runs nearly parallel with it in the upper third of its extent, but diverges from it in the lower two-thirds. It begins above just beneath the head of the bone (sometimes it is quite indistinct for about 2.5 cm. below the head), and ends at the apex of a rough triangular surface immediately above the articular facet of the lateral malleolus. It serves for the attachment of the interosseous membrane, which separates the extensor muscles in front from the flexor muscles behind.
The postero-lateral border is prominent; it begins above at the apex, and ends below in the posterior border of the lateral malleolus. It is directed lateralward above, backward in the middle of its course, backward, and a little medialward below, and gives attachment to an aponeurosis which separates the peronaei on the lateral surface from the flexor muscles on the posterior surface.
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[@mortywitoutahoodie]

I dislocated my fibula playing soccer and I didnt know what my injury was after getting 2 Mri's and 4 xrays. I also had multiple doctor and surgeon visits. It's a very tricky injury because its not very well known. After I saw my surgeon a few times, she said she was stumped and decided to send me to a special sports physio therapist. That's where I was diagnosed with (superior tibiofibular dislocation.) I had a year and a half of knee locking episodes where I couldn't walk/bear weight. One of the reasons why it was so tough for them to diagnose my injury was because after a day or so, my knee would pop back by itself in my sleep. So I wouldn't be able to see a doctor in time while my knee was still dislocated. The reason I got my injury was because I landed on my toes with my leg in full extension, causing all the weight to be pushed into the knee rather than being absorbed by it. I really like the contents of this video. It does an amazing job of explaining the bone and its many functions in great detail.

[@MedicalCentric]

I'm sorry to hear about your challenging experience with a proximal fibular tibia dislocation. It's true that some injuries can be complex to diagnose, especially when they involve less common conditions like this one. I'm glad to hear that you found the video informative and that it provided a detailed explanation of the fibula's functions. Understanding such injuries and their impact can be crucial in the recovery process, and I hope you're on the path to healing and improved mobility.

[@Jan96106]

This was an excellent explanation and visuals, but I'd like additionnal focus on breaks or bruises at the top of the bone, not near the ankle. Everyone focuses on the ankle.

[@tempejkl]

yes true I, tryna figure out whether I’m being too anxious or gonna cause myself a malunion

[@vaughn47]

I broke my fibula three months ago and I just had surgery on Friday I’m just hoping for speedy recovery ❤

[@MedicalCentric]

Wishing you a smooth and speedy recovery from your surgery! ❤️

[@monicap891]

Speedy recovery

[@marcocuentas6784]

How are you doing post surgery?

[@navin0000]

Great info. Thanks

[@MedicalCentric]

Glad it was helpful!

[@masih24]

Thanks

[@MedicalCentric]

You are welcome

[@christineireri4254]

I think Mayne is fibula plastered for 3 month now which medication for calcium plz

[@bijayraj8213]

Thanx for info, due to my knee twisted accident shin bone deformed with out any fracture what to do

[@banyocovers15]

how is knee twisted

[@jyotsnamohanta6495]

Fibula bone problem ke karon uper leg pain ho raha hai iss keliye kiya kiya jaye

[@jitdas7015]

I had fibulectomy for biopsy, can I walk normally without limping ?

[@9axxh]

I twisted my ankle and felt a little bit of pain after resting and waking up, I’ve been dealing with an ankle strain for a bit now. Went to the doctor and he said my ankle bone might be weak and I might have a Vitamin D deficiency, so he gave me Vitamin D3 and Vitamin K2. I also got some Naproxen for the pain, plus a rofenac gel and a removable wrap. The pain did go down a bit but the fibula is discomforting and hurts a bit even tho he did an x ray and it appeared to be safe, any suggestions? Highly appreciated and thank you

[@MedicalCentric]

I'm sorry to hear about your ankle pain. Given your symptoms and the treatments prescribed by your doctor, it's important to follow his advice closely. Ensure you take the Vitamin D3 and K2 supplements as directed, as they will help strengthen your bones. Use the Naproxen and rofenac gel to manage the pain, and keep your ankle wrapped to provide support. Additionally, try to rest and elevate your ankle to reduce swelling and avoid putting too much weight on it. If the pain persists or worsens, please follow up with your doctor for further evaluation. ❤️

[@9axxh]

@@MedicalCentric sure, thanks alot 🤍

[@rune269]

Whenever I looked at a skeleton, I wondered why such a useless looking bone exists. I'm surprised to see that while the Tibia does support weight as expected, the Fibula has a more technical use and supports a significant amount of important tendons.

[@MedicalCentric]

The fibula may seem overlooked, but its role in supporting tendons and stabilizing the ankle is crucial for mobility and balance alongside the tibia's weight-bearing function.

[@user-xq5se9wc5f]

I had Weber B surgery it's been 1year 5months and my leg still little bit stiff and little bit limping

[@MedicalCentric]

Sorry about the condition, I hope it gets better soon

[@yogeshpingle3848]

Sir i had a small crack in my fibula and treatment is going on ( cast )....So in how many days i can walk normally with bearing weight without walker

[@uchihasasuke9787]

Hello .. Is it still swollen your leg?

[@aymiharbi]

I am also In the same situation but is still swollen

[@victormontoya1923]

Same here but its only been a week, my fracture was small and wqs only given 800mg ibuprophen, walking boot & crutches.

[@yanams12311]

I have a fibular avulsion fracture and an atfl disruption. Would I need surgery

[@MedicalCentric]

Whether surgery is required for a fibular avulsion fracture and ATFL (Anterior Talofibular Ligament) disruption depends on the severity of the injury, the degree of instability in your ankle, and the recommendations of your orthopedic surgeon. In some cases, non-surgical treatment, such as immobilization and physical therapy, may be sufficient. However, if there's significant instability or if conservative measures fail, surgery may be necessary to repair the ligament and address the fracture. It's crucial to consult with a healthcare professional to determine the most appropriate treatment plan for your specific condition.

[@yanams12311]

@@MedicalCentric Thank you so much

[@mrrishiraj88]

Good day greetings

[@MedicalCentric]

Have a nice day