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It is vulnerable to injury with fractures of the humeral shaft as it lies in very close proximity to the bone (it descends within the spiral groove on the posterior aspect of the humerus). Characteristic findings following injury will be as a result of radial nerve palsy (e.g. weakness of wrist/finger extension and sensory loss over the dorsum ...
Proximal fractures make up 5% of all fractures and 25% of humerus fractures, [9] middle fractures about 60% of humerus fractures (12% of all fractures), [12] and distal fractures the remainder. Among proximal fractures, 80% are one-part, 10% are two-part, and the remaining 10% are three- and four-part. [ 22 ]
The distal humerus grows slowly post fracture (only contributes 10 to 20% of the longitudinal growth of the humerus), therefore, there is a high rate of malunion if the supracondylar fracture is not corrected appropriately. Such malunion can result in cubitus varus deformity. [citation needed]
This nerve is the most commonly injured nerve in proximal humerus fractures due to its location close to the proximal humerus. [ 12 ] Muscles that attach to the proximal humerus and can cause a deforming force on fracture fragments include the pectoralis major , the deltoid , and the rotator cuff muscles .
The native humerus and scapula bones are prepared using precise machining to accommodate their respective implants. At the end of the procedure, the subscapularis muscle is typically repaired, although some surgeons advocate not repairing this muscle due to the excess tension placed on it by the altered mechanics of the reverse shoulder design.
One example of a commonly used regional anesthetic is an interscalene brachial plexus block and it has been used in a number of shoulder procedures including instability repairs, proximal humeral prosthetic replacements, total shoulder arthroplasties, anterior acromioplasties, rotator cuff repairs, and operative treatment of humeral fractures. [24]
Medial epicondyle fractures account for 10% elbow fractures in children. 25% of injuries are associated with a dislocation of the elbow. Medial epicondyle fractures are typically seen in children and usually occur as a result of a fall onto an out-stretched hand. This often happen from falls from a scooter, roller skates, or monkey bars, as ...
Bone fractures, joint dislocations, high dose steroids [1] Diagnostic method: Medical imaging, biopsy [1] Differential diagnosis: Osteopetrosis, rheumatoid arthritis, Legg–Calvé–Perthes syndrome, sickle cell disease [3] Treatment: Medication, not walking on the affected leg, stretching, surgery [1] Frequency ~15,000 per year (US) [4]