Every orthopaedic condition in the Atlas, searchable and filterable by anatomical region. Each entry is written for clinicians and cites the evidence where it matters.
A degenerative overuse disorder of the Achilles tendon characterised by pain and impaired performance; distinct midportion and insertional subtypes are recognised.
Complete disruption of the Achilles tendon, typically in middle-aged recreational athletes, causing sudden calf pain and loss of plantarflexion power.
A self-limiting but prolonged inflammatory and fibrotic contracture of the glenohumeral capsule producing marked pain and loss of motion.
A three-dimensional deformity of the growing spine of unknown cause, characterised by lateral curvature and vertebral rotation during adolescence.
A ligamentous disruption most often sustained during pivoting or deceleration in sport, producing rotational instability of the knee.
Recurrent or symptomatic anterior translation of the humeral head from the glenoid, typically following a traumatic dislocation in a young patient.
Ischaemic death of subchondral bone in the femoral head leading to collapse, secondary arthritis, and a disproportionate burden in young adults.
Compression of the median nerve at the wrist beneath the transverse carpal ligament, producing the most common upper-limb entrapment neuropathy.
Compression or inflammation of a cervical nerve root producing dermatomal arm pain with or without motor and reflex changes.
Degenerative narrowing of the cervical canal producing chronic spinal cord compression and progressive neurological dysfunction.
Compression of the ulnar nerve at the elbow, producing medial elbow pain, ulnar-sided hand paraesthesia, and eventually intrinsic weakness.
Painful tenosynovitis of the first dorsal extensor compartment at the wrist, involving APL and EPB tendons.
A spectrum of abnormal acetabular and femoral development ranging from mild instability in infancy to frank dislocation and adult dysplastic arthritis.
Abnormal morphological contact between the proximal femur and acetabular rim during hip motion, implicated as a precursor of premature osteoarthritis.
Degenerative cartilage loss in the glenohumeral joint causing progressive pain and stiffness, often with characteristic posterior glenoid erosion.
Lateral hip pain arising from gluteal tendinopathy, tears, or trochanteric bursitis; now recognised as a tendinopathic rather than purely bursal disorder.
Progressive lateral deviation of the great toe with medial eminence prominence, often accompanied by pain and functional footwear difficulty.
Degenerative cartilage loss in the acetabulofemoral joint producing groin pain, stiffness, and progressive functional impairment.
An overuse syndrome of the lateral knee in runners and cyclists, producing pain as the iliotibial band tracks over the lateral femoral epicondyle.
Progressive loss of articular cartilage with associated subchondral bone, capsular, and periarticular changes, producing pain, stiffness, and functional decline.
Degenerative enthesopathy of the common extensor origin at the lateral humeral epicondyle, a frequent cause of lateral elbow pain.
Displacement of nucleus pulposus material beyond the disc space, commonly causing radiculopathy through compression of a nerve root.
Narrowing of the central canal, lateral recess, or foramen of the lumbar spine producing neurogenic claudication in older adults.
Slippage of one vertebral body on another, typically at L4-5 (degenerative) or L5-S1 (isthmic), producing back pain, radiculopathy, or neurogenic claudication.
Injury to the medial or lateral fibrocartilaginous meniscus, ranging from acute sport-related tears in young patients to degenerative tears in mid-life.
A perineural fibrosis of a common plantar digital nerve, most often in the third intermetatarsal space, producing forefoot pain and paraesthesia.
Inflammation of the olecranon bursa at the posterior elbow, either inflammatory or septic, producing characteristic swelling over the olecranon.
Lateral displacement of the patella from the trochlear groove, usually after a twisting injury, with rupture of the medial patellofemoral ligament.
A common cause of anterior knee pain, particularly in young active patients, arising from altered patellofemoral joint loading without a single discrete structural lesion.
A non-discogenic cause of sciatic-type buttock and leg pain attributed to compression or irritation of the sciatic nerve by the piriformis muscle.
Overuse-related degenerative and inflammatory change at the plantar fascia origin on the medial calcaneal tubercle, producing heel pain.
Partial or full-thickness disruption of one or more rotator cuff tendons, most commonly supraspinatus, driven by age-related degeneration and mechanical factors.
Superior labral anterior-posterior injury of the glenoid, seen in throwers and after traction or compression injuries, producing deep shoulder pain and catching.
A spectrum of shoulder pain attributed to mechanical or functional impingement of the rotator cuff beneath the coracoacromial arch, now understood as part of rotator cuff disease.
Stenosing tenosynovitis of the flexor tendon at the A1 pulley, producing catching, locking, and pain with finger flexion.