Ortho Oracle - orthopaedic operative atlas

Iliohypogastric Nerve

– Discussion:     – arises from T12 & L1;     – emerges from lateral border of Psoas  & passes over Quadratus Lumborum to penetrate transverse abdominal muscle near the iliac crest;     – nerve supplies anterior cutaneous branch to skin of suprapubic region

Identification of the Musculocutaneous Nerve

– Discussion:     – before retractors are placed beneath coracoid process palpate for musculocutaneous nerve as it enters conjoined tendon;     – nerve lies on deep surface of coracoid muscles;     – most often nerve enters coracobrachialis and biceps from medial aspect about 5 cm distal to tip of coracoid process;       … Read more

Idiopathic Hypertrophic Subaortic Stenosis

– See: Aortic Stenosis – Etiology: (familial inheritance)     – no anatomic stenosis     – anterior leaf of MV moves against Hypertrophied septum, blocking outflow; – Sequelae:      – sudden death is common;      – L.V.H.      – mitral valve dysfunction. – Physical Exam:      – pulse collapses w/ … Read more

Idiopathic Scoliosis

– Discussion:     – prevalence of scoliosis:           – 10 deg curve is considered to be the threshold for scoliosis;           – curves > 10 deg occur in 2.5/100;           – curves > 20 deg occur in about 1/2500       … Read more

Idiopathic Transient Osteoporosis of the Hip

– See: Musculoskeletal Considerations in Pregancy – Discussion:     – uncommon disease which is a diagnosis of exclusion;     – most often seen in women during the third trimester of pregnancy and in middle-aged men;     – typically there is no antecendent trauma;     – up to 40% of patients may … Read more

Iliac Wing: Fractures

– See: Sacro-Iliac Fracture Dislocations – Management:     – consider  direct frx fixation from iliac crest into sacrum;     – under x-ray control, long, 6.5-mm cannulated lag screws transfix the frx from iliac wing to body of S-1;     – because of risk to neural structures, K guide wire usually is inserted, and its … Read more

Iliacus

Origin: superior 2/3 of the iliac fossa, internal border iliac crest, anterior sacroiliac, lumbosacral and iliolumbar ligaments, ala sacrum; Insertion: Lesser trochanter of femur and for a short distance below along medial border of the shaft; Action: Flexes thigh at the hip, minimal activity on lateral rotation of the thigh; Reversed origin-insertion action: when the … Read more

Iliocostalis Cervicis

origin: superior borders of the angles of the 3rd to 6th ribs; insertion: the posterior tubercles of the transverse processes of the 4th, 5th, and 6th cervical vertebrae; action: acting bilaterally, extends and hyperextends the vertebral column; nerve supply: posterior rami of the spinal nerve, C6, C7, C8 ; synergists: splenius cervicis, Semispinalis Cervicis  Longissimus Cervicis

ICD-9 Codes: Debridement

10000 I&D (NON)/INFECTED CYST  10000 I&D SEBACEOUS CYST-1  10020 I&D FURUNCLE  10060 I&D ABSCESS-SIMPLE  10061 I&D ABSCESS-COMPLICATED  10120 INCISION AND REMOVAL OF FB/SUTURES-SIMPLE  10120 REMOVE FOREIGN BODY  10140 I&D OF HEMATOMA-SIMPLE  10141 I&D OF HEMATOMA-COMPLICATED  10160 NEEDLE ASPIRATION-ABS/HEMATOMA  11000 DEBRIDEMENT INFECTED SKIN