Os calcaneus secundarius
Last revised by Daniel J Bell ◉ on 05 May 2022
Citation, DOI & article data
Citation:
Dixon A, Bell D, Jones J, et al. Os calcaneus secundarius. Reference article, Radiopaedia.org (Accessed on 29 Jan 2023) https://doi.org/10.53347/rID-10661
rID:
10661
Article created:
02 Sep 2010 by Andrew Dixon ◉
Revisions:
24 times by 12 users - see full revision history
System:
Section:
Tags:
Synonyms:
- Calcaneus secundarius
- Os calcanei secundarium
- Os calcaneus secundarius
An os calcaneus secundarius is an accessory ossicle of the anterior calcaneal process present in up to 5% of the population at cadaveric examination. The ossicle can be a cause of ankle pain and may mimic bifurcate ligament avulsion fracture of the anterior calcaneal process.
Differential diagnosis
- fracture of the anterior process of the calcaneus - difficult to distinguish from an os calcaneus secundarius if the suspected fracture is subacute or chronic.
- fracture of the tuberosity of the calcaneus
- calcaneus accessorius
- cuboideum secundarium
- os sustentaculi
References
- 1. Hodge J. Anterior Process Fracture or Calcaneus Secundarius: A Case Report. J Emerg Med. 1999;17(2):305-9. doi:10.1016/s0736-4679(98)00167-x - Pubmed
- 2. Ceroni D, De Coulon G, Spadola L, De Rosa V, Kaelin A. Calcaneus Secundarius Presenting as Calcaneonavicular Coalition: A Case Report. J Foot Ankle Surg. 2006;45(1):25-7. doi:10.1053/j.jfas.2005.10.004 - Pubmed
- 3. Keles-Celik N, Kose O, Sekerci R, Aytac G, Turan A, Güler F. Accessory Ossicles of the Foot and Ankle: Disorders and a Review of the Literature. Cureus. 2017;9(11):e1881. doi:10.7759/cureus.1881 - Pubmed
Related articles: Anatomy: Lower limb
- skeleton of the lower limb
- joints of the lower limb
-
hip joint
- ligaments
- muscles
- additional structures
- hip joint capsule
- zona orbicularis
- iliotibial band
-
hip bursae
- anterior
- iliopsoas bursa (iliopectineal bursa)
- lateral
- subgluteal bursae
- greater trochanteric bursa (subgluteus maximus bursa)
- subgluteus medius bursa
- subgluteus minimus bursa
- gluteofemoral bursa
- subgluteal bursae
- postero-inferior
- anterior
- ossification centers
-
knee joint
- ligaments
- anterior cruciate ligament
- posterior cruciate ligament
- medial collateral ligament
- lateral collateral ligament
- meniscofemoral ligament (mnemonic)
-
posterolateral ligamentous complex
- arcuate ligament
- patellar tendon and quadriceps tendon
- anterolateral ligament
- posterior oblique ligament
- oblique popliteal ligament
- medial patellofemoral ligament
- additional structures
- extensor mechanism of the knee
- groove for the popliteus tendon
- knee bursae
- anterior bursae
- medial bursae
- lateral bursae
- posterior bursae
- knee capsule
- lateral patellar retinaculum
- medial patellar retinaculum
- menisci
- pes anserinus (mnemonic)
- ossification centers
- ligaments
- tibiofibular joints
-
ankle joint
- regional anatomy
- medial ankle
- lateral ankle
- anterior ankle
- ligaments
- medial collateral (deltoid) ligament
- lateral collateral ligament
- additional structures
- ankle bursae
- ossification centers of the ankle
- variants
- regional anatomy
- foot joints
- subtalar joint
- mid-tarsal (Chopart) joint
-
tarsometatarsal (Lisfranc) joint
- ligaments
- intermetatarsal joint
- metatarsophalangeal joint
- interphalangeal joint
- ossification centers
-
hip joint
- spaces of the lower limb
-
muscles of the lower limb
- muscles of the pelvic group
- muscles of the thigh
- muscles of the leg
- anterior compartment of the leg
- posterior compartments of the leg
- lateral compartment of the leg
- muscles of the foot
- dorsal muscles
- plantar muscles
- 1st layer
- 2nd layer
- 3rd layer
- 4th layer
- accessory muscles of the lower limb
- accessory gluteal muscles
-
accessory muscles of the ankle
- accessory peroneal muscles
- accessory flexor digitorum longus muscle
- accessory soleus muscle
- peroneocalcaneus internus muscle
- tibiocalcaneus internus muscle
- extensor hallucis capsularis tendon
- anterior fibulocalcaneus muscle
- accessory extensor digiti secundus muscle
- tibioastragalus anticus of Gruber muscle
- vascular supply of the lower limb
- arterial supply of the lower limb
- venous drainage of the lower limb
- innervation of the lower limb
- lymphatic system of the lower limb
- lymphatic pathways
- anteromedial group
- anterolateral group
- posteromedial group
- posterolateral group
- lower limb lymph nodes
- lymphatic pathways