Week 7 - Injury Prevention Flashcards
Strains and Sprains
Approximately 50% of work-related injuries are for sprains and strains of muscles and ligaments.
Back (particularly lower back) and ankle injuries are the most commonly occurring injuries, but they can occur in any muscles or ligaments.
What is a Strain?
Injury to the muscle as a result of over-stretching of the muscle eg lower back (most common)
Swelling may be present
What does it feel like?
Patient may feel a “pop” sensation as the strain injury occurs
Movement may increase the pain
May experience cramping or muscle spasms
May have decreased range of movement
How do we treat it?
Rest Ice Compression Elevation (lay down if it is more comfortable) Non-steroidal anti-inflammatories Begin mobilising after first 24 hours to aid recovery, may be referred to physio Should be healed within 2 weeks: if not, seek further review
Prevention of Strain Injuries
Avoid twisting the torso where possible
Warm up before exercise
Obesity and poor muscle tone increase risk (healthy diet, exercise decrease risk)
What is a Sprain?
Ligaments are fibrous bands of tissue that connect two or more bones at a joint and prevent excessive movement of the joint.
A strain is an injury to a ligament (stretch or tear) due to the body part being moved in the wrong direction
Ankle and Knee most common sites for sprains
Swelling, bruising may be seen at the site.
.
What does it feel like?
Can be extreme pain on movement
Patient may not be able to weight-bare on the effected limb
How do we treat sprains?
Rest (including crutches for legs) Ice Compression Elevation All for the first 24 hours: do not use heat or massage as a treatment in this first phase
May be referred to physio
Severe ligament tears may require surgery eg cruciate ligament.
Prevention of sprains
Take care of surroundings and wear appropriate footwear
Warm up before exercise
Strapping of limbs which are prone to sprains during sport
Fractures: how often?
In Australians 35-55 years, men sustain twice as many fractures as women
35-55 years, the fracture rate (persons per 10,000/year) in men was about double the rate in women. (Risk-taking, manual tasks, contact sports)
Fractures
Most common (across the lifespan) are hip, spine, distal forearm (Colles), humerus, tibia/fibula, ankle (in decreasing order of rate of occurance
Fractures
Any bone can be fractured)(Hip fractures not covered in HOA, as previously covered in HOOA)
The fracture rate between men and women starts to even out after the age of 60, when fractures due to falls and osteoporosis become more common
Fracture Prevention
Safety initiatives: MVAs, industrial safety, home handyman safety, farm safety, helmets
Bone health: high calcium diet +- calcium supplements for older adults
Weight-baring exercises increase bone strength
Healthy weight range
Types of fracture: closed and stable
The most common, and easiest to treat fractures are closed and stable fractures.
This occurs when the bone stays in its natural alignment when broken, and doesn’t pierce the skin.
For limb fractures, a cast is applied to minimise bone movement during the healing period.
Casts: backslab
A backslab cast is applied first, with a bandage to keep in place, to allow for swelling.
Full Cast
The patient then returns to the ED or fracture clinic at a later date for a full cast.
The cast will become warm during the chemical process: this is normal (first hour).
Tell the patient to be careful
for the first 24 hours whilst
the plaster sets.
Dynacast
Dynacast, and other similar products, are sometimes applied over the plaster of paris cast, to give extra durability. They are sometimes coloured, or
even glow in the dark!
key points about cast
Whilst some settings have casts which are advertised by companies to be able to get wet, this is never advisable.
Water under the cast can lead to cast failure, or worse, skin breakdown.
Also, patients shouldn’t poke knitting needles etc down cast to scratch skin
Patients receive slings for arm casts and crutches for leg casts.
Casts generally stay on for 6 weeks, after which they are removed with a plaster saw.
The bone is then X-Rayed to ensure that the bone is completely healed.
Patients generally find it difficult to move that limb for a few days after plaster removal (muscles lose condition)
Patients can get arthritis after fractures, often many years later.
Closed and unstable fractures
Sometimes fractured pieces of bones are displaced from each other, and this generally requires surgery to re-align the bones.
Pins and screws
It may require temporary or permanent pins and screws for fixation
what is an Open fracture
A fracture which pierces the skin.
Can be more complex to fix and increased risk of infection, patient will be
prescribed antibiotics.
Potential risks after fractures: Pain
For simple fractures, oral analgesia PRN may suffice. It could be a combination of paracetamol, ibroprufen and oral opiods.
For more complex fractures, the inpatient may be prescribed an opiod via PCA/infusion/epidural
Potential Risks: Compartment Syndrome
A full cast can provide a compartment, and this is one of the reasons for backslabs for initial stabilisation.
Skin can also create the compartment.
Swelling after the injury has nowhere to go, and tissue begins to die.
key points of Compartment syndrome
Any patient reports of tingling, burning should be reported and documented: may be expected but you should check with the surgeon
Neurovascular observations can detect changes which could indicate compartment syndrome, and therefore should be done for every patient with limb trauma:
Colour Warmth Movement Sensation
Sometimes the treatment can simply be removing the cast, but if the skin is creating the compartment, the patient may require a
fasciotomy