operative management

Lateral Epicondylitis / Tennis Elbow

Incidence

 

Lateral : Medial 9:1

 

Epidemiology

 

4th & 5th decades

- M = F

- 75% dominant arm 

 

50% of regular tennis players

- especially > 2 hrs / week

 

Aetiology

 

Insertion pathology / Enthesopathy

 

Over-extension of the elbow with supination / pronation

 

Anatomy

 

Lateral epicondyle

- anconeus from posterior face

- ECRB and EDC from anterior face (CEO)

Cubitus Varus

Incidence

 

Occurs 10% of supracondylar humeral fractures

- varus malunion

 

Lateral condyle fracture

- AVN trochlea

 

Elbow Cubitus Varus

 

Growth arrest of medial aspect physis

- rare

- post traumatic

 

Effects

 

Achilles Tendonopathy

Definition

 

Inflammation of achilles tendon; insertional or noninsertional

 

Spectrum

 

Tendonitis / Tendonosis / Rupture

 

Anatomy

 

Triceps surae

- medial and lateral gastrocnemius

- soleus

- surrounded by paratenon which allows gliding and supplies nutrition

 

Inserts middle 1/3 calcaneal tuberosity

- 2 x 2 cm area

- 90o rotation distally

 

Retrocalcaneal bursa (x2)

Achilles Tendon Rupture

AnatomyAchilles tendon anatomy

 

Gastrocnemius tendon 10-25 cm long

- soleus 3-10 cm

- inserts superior calcaneal tuberosity

- fibres spiral 90°

- fibres that lie medially in proximal portion become posterior distally

- allows elastic recoil & energy storage

 

Plantaris present in 90% population

- medial to T Achilles

 

Poor blood supply midportion

- mesotenal vessels

Tendonitis / Tendonopathy

Anatomy

 

Lateral compartment of leg

- run through retromalleolar groove

- pass superior and inferior to peroneal tubercle

- covered by inferior peroneal retinaculum

 

Peroneus longus

- origin lateral condyle of tibia and head fibula

- tendon PL superficial and inferior to brevis in retromalleolar groove

- runs in cuboid groove 

- insert plantar surface base of 1st MT and lateral aspect medial cuneiform

Spinal Metastasis

EpidemiologyThoracic Metastasis

 

80% cancer patients have spinal metastasis at autopsy 

 

Spine is number one site for bony metastasis (50%)

 

Cause

 

Hexagon: PBBLTK

 

                 Prostate    Breast

 

Scheuermann's kyphosis

Definition 

 

Structural kyphosis of thoracic or thoracolumbar spine

- characterised by vertebral wedging & subsequent growth disturbance of vertebral end plate

 

X-ray Diagnostic Criteria Sorensen 1964

 

1.  Kyphosis > 45°

 

2. > 5° wedging 3 or more adjacent apical vertebrae

 

Other features

- Schmorl nodes

Vertebral Osteomyelitis

Epidemiology

 

M:F =2:1

 

30-40 years

 

20% diabetic

 

50-80% identifiable source

 

Site

 

Lumbar (50%) > Thoracic > Cervical (<10%)

 

Pathogenesis

 

1.  Haematogenous

- arterial rather than venous

 

Risk factors

- UTI (40% of all cases)

- IVDU

- elderly