- Cubitus varus
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Cubitus varus Classification and external resources ICD-10 M21.1, Q68.8 ICD-9 736.02, 755.59 Cubitus varus (varus means a deformity of a limb in which part of it is deviated towards the midline of the body) is a common deformity in which the extended forearm is deviated towards midline of the body .
Cubitus varus is often referred to as 'Gunstock deformity', due to the crooked nature of the healing.[1][2]
The "opposite" condition is cubitus valgus.
Contents
Causes
A common cause is the supracondylar fracture of humerus. It can be corrected via a corrective osteotomy of the humerus and either internal or external fixation of the bone until union.
Diagnosis
Cubitus varus is not able to be diagnosed until after healing of the prior fracture, as the arm must be in full extension, not flexion, for the deformity to be noticed.
Prognosis
A cubitus varus deformity is more cosmetic than limiting of any function,[3] however internal rotation of the radius over the ulna may be limited due to the overgrowth of the humerus. This may be noticeable during an activity such as using a computer mouse.
Complications
Instances in which the medial epicondyle of the distal humerus is malformed due to the initial fracture at the humeral endplate may result in subluxation (snapping) of the ulnar nerve over the medial epicondyle with active flexion and extension of the elbow. In such instances, conductance of the ulnar nerve may be compromised due to chronic irritation, potentially resulting in irreversible ulnar neuropathy.
References
- ^ "Medcyclopaedia - Gunstock deformity". http://www.medcyclopaedia.com/library/topics/volume_vii/g/gunstock_deformity.aspx. Retrieved 2008-02-25.
- ^ Stimson LA (Sep 1900). "I. Cubitus Varus; or, "Gunstock" Deformity following Fracture of the Lower End of the Humerus". Ann Surg. 32 (3): 301–8. doi:10.1097/00000658-190007000-00021. PMC 1425131. PMID 17860875. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1425131.
- ^ "Cubitus Varus - Wheeless' Textbook of Orthopaedics". http://www.wheelessonline.com/ortho/cubitus_varus. Retrieved 2008-02-25.
Musculoskeletal disorders: Acquired musculoskeletal deformities (M20–M25, M95, 734–738) Upper limb elbow (Cubitus valgus, Cubitus varus)Lower limb foot deformity (Bunion/hallux valgus, Hallux varus, Hallux rigidus, Hammer toe, Foot drop, Flat feet, Club foot)Genu recurvatumHead General terms M: JNT
anat(h/c, u, t, l)/phys
noco(arth/defr/back/soft)/cong, sysi/epon, injr
proc, drug(M01C, M4)
Osteochondropathy (M80–M94, 730–733) Osteopathies endocrine bone disease: Osteitis fibrosa cystica (Brown tumor)infectious bone disease: Osteomyelitis (Sequestrum, Involucrum) · Sesamoiditis · Brodie abscess · PeriostitisBone density
and structureDensity / metabolic bone diseaseContinuity of boneOtherFibrous dysplasia (Monostotic, Polyostotic) · Skeletal fluorosis · bone cyst (Aneurysmal bone cyst) · Hyperostosis (Infantile cortical hyperostosis) · Osteosclerosis (Melorheostosis)OtherChondropathies OtherBoth lower limb: hip (Legg–Calvé–Perthes syndrome) · tibia (Osgood-Schlatter disease, Blount's disease) · foot (Köhler disease, Sever's disease)Congenital malformations and deformations of musculoskeletal system / musculoskeletal abnormality (Q65–Q76, 754–756.3) Appendicular
limb / dysmeliahand deformity:Lowerhip:knee:Genu valgum · Genu varum · Genu recurvatum · Discoid meniscus · Congenital patellar dislocation · Congenital knee dislocationfoot deformity:Either / bothdactyly / digit:reduction deficits / limb:multiple joints:Axial Craniofacial dysostosis:other:spinal curvature (Scoliosis) · Klippel-Feil syndrome · Spondylolisthesis · Spina bifida occulta · SacralizationThoracic skeletonribs:sternum:M: JNT
anat(h/c, u, t, l)/phys
noco(arth/defr/back/soft)/cong, sysi/epon, injr
proc, drug(M01C, M4)
Categories:- Disease stubs
- Musculoskeletal system stubs
- Congenital disorders of musculoskeletal system
- Arthropathies
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