Ace The ONP-C® Exam

The olecranon is the proximal articular portion of the ulna.  Along with the coronoid process, it forms the greater sigmoid notch which articu ...

The median nerve is a continuation of the middle and lateral cords of the brachial plexus that receives innervation from all roots of the brac ...

The atlantoaxial segment consists of the atlas (C1) and axis (C2) and forms a complex transitional structure bridging the occiput and cervical spin ...

The relevant anatomy of the spinal nerve-muscular innervation of the back is centered around the lumbar spinal nerves, peripheral nerves of the lum ...

Injury of the pars interarticularis is among the most common causes of low back pain, especially in adolescent athletes. Sometimes these lesions de ...

According to the National Hospital Ambulatory Medical Care Survey, there are 12 injury-related emergency department visits for every 100 persons ov ...

Osteochondritis dissecans (OCD) of the knee is a somewhat rare cause of knee dysfunction and pain that has been recognized for over one hundred yea ...

The rotator cuff (RC) is an anatomic coalescence of the muscle bellies and tendons of the supraspinatus (SS), infraspinatus (IS), teres minor (TM), ...

Talipes equinovarus (TEV) is a congenital disorder affecting a large portion of the global population leading to decreased quality of life, disabil ...

Osteoporosis is defined as low bone mineral density caused by altered bone microstructure ultimately predisposing patients to low-impact, fragility ...

Osteitis fibrosa cystica (OFC) is a disorder involving the bone which is resulted from excessive production of parathyroid hormone (PTH) due to par ...

The anatomical snuffbox is a surface anatomy feature described as a triangular depression on the dorsum of the hand at the base of the thumb. The a ...

Elbow injuries are a frequent occurrence in the skeletally immature pediatric population.  The metaphysis of the distal humerus is most suscep ...

Clubfoot (talipes equinovarus) is a congenital deformity involving the foot, otherwise known as congenital talipes equinovarus. It is among the mos ...

Osteonecrosis of the hip, commonly known as avascular necrosis (AVN) of the hip, is the death of the femoral head as a result of the vascular disru ...

Facet joints form from the superior and inferior articular processes of two adjacent vertebrae. They are synovial joints as a fibrous capsule encom ...

Bone cysts are often asymptomatic and found incidentally on radiographs. Sometimes, they may present with pain due to repeated hemorrhages or patho ...

Total hip arthroplasty (THA) is one of the most cost-effective and consistently successful surgeries performed in orthopaedics