Surgery 5 Flashcards
What is enhanced recovery after surgery (ERAS) and how is it achieved?
Aims to optimise patients before surgery and reduce the risk of adverse outcomes
PRE-OP: aggressive physiological optimisation, smoking cessation for > 4 weeks, avoid prolonged fast, carb loading
INTRA-OP: short-acting anaesthetics, epidural, minimally invasive, avoid drains and NG tubes
POST-OP: aggressive pain/nausea management, early mobilisation and physiotherapy, early resumption of oral intake, remove drains and catheters ASAP
Outline the management of meniscal tears.
Symptomatic (analgesia)
Arthroscopic or open partial meniscectomy/meniscal repair
IMPORTANT: the lateral 1/3 of the meniscus has a rich blood supply so tears may heal by themselves or with surgery; the medial 2/3 has a poor blood supply so requires meniscectomy
Which changes in the skin give rise to a seborrhoeic keratosis?
Hyperkeratosis - thickening of corneum
Acanthosis - thickening of spinosum
Hyperplasia of basal cells
List the special tests used in a shoulder exam and state the anatomical structure that is being tested.
Jobe’s empty can test: supraspinatus
Forced external rotation of shoulder with elbow at 90 degrees: infraspinatus + teres minor
Gerber’s lift off: subscapularis
Scarf test: acromioclavicular joint dysfunction
Hawkin’s test: impingement
Apprehension test: glenohumeral joint instability
Which investigation should be requested in suspected renal tract cancer?
Renal tract ultrasound
List some differentials for RIF masses.
Transplanted kidney Caecal cancer Appendix mass Incisional hernia Ovarian tumour/fibroid uterus Ectopic kidney Iliac artery aneurysm
What adjacent structures can be damaged during a fracture?
Nerves
Vessels
Ligaments
Tendons
List some different types of bypass surgery for chronic limb ischaemia.
Anatomical: femoral-popliteal, femoral-distal, aorto-bifemoral
Extra-Anatomical: axillo-fem, fem-fem crossover
What are the two main techniques used for hip replacement? Describe them.
Posterior Approach: involves reflecting the short external rotators, good access, higher dislocation rate, sciatic nerve injury (footdrop)
Anterolateral Approach: incision over greater trochanter dividing fascia lata, abductors are reflected, lower dislocation risk, superior gluteal nerve injury (Trendelenburg gait)
What features of a fracture can be described from a plain X-ray?
Location (which bone) Pieces (simple, multifragmentary?) Pattern (transverse, oblique, spiral) Displaced/undisplaced (speaking about the distal end) Translated/angulated Plane of radiograph
NOTE: translated means lateral movement of the fracture’ (lateral, medial, anterior, posterior) and angulation is rotation of the fracture component (varus or valgus)
What are the boundaries of Hesselbach’s triangle?
Medial: rectus abdominis muscle
Lateral: inferior epigastric artery
Inferior: inguinal ligament
List some types of non-absorbable suture.
Silk (used to secure drains)
Prolene (skin wounds and arterial anastomosis)
Ethilon (skin wounds)
Metal (skin wounds, sternotomy closure)
What does limited active movement but normal passive movement suggest?
Either a muscular problem (e.g. tendon rupture) or an innervation issue
List some contraindications for IV urography.
Contrast allergy Renal impairment Pregnancy Severe asthma Metformin
List some causes of thoracic outflow obstruction.
Cervical rib
Clavicle fracture
Pathological enlargement of 1st rib
NOTE: DDx - Raynaud’s, axillary vein thrombosis, cervical spondylosis, Pancoast tumour
Describe the examination features of a sebaceous cyst.
Occur at sites of hair growth (e.g. scalp, face, neck, chest)
Central punctum
Firm, smooth and intradermal
List some differentials for RUQ masses.
Hepatomegaly
Hepatic mass (e.g. cyst)
Gallbladder
Right kidney
When should the COCP be stopped prior to elective surgery?
4 weeks
What is a trigger finger?
Flexion of middle or ring finger
Caused by tendon nodule catching on the proximal side of the tendon sheath (usually FDS tendon)
NOTE: managed with steroid injections or sheath incision
At what vertebral levels do the coeliac trunk, SMA and IMA branch off the aorta?
Coeliac trunk: L1 SMA: L1 Renal arteries: L2 IMA: L3 Bifurcation of aorta: L4/L5