Introduction

Transverse fractures are the most common type¹ of broken bone. Fractures happen in the opposite direction of the bone, which makes a straight break across the width.  It is also called a complete fracture. This means the line of break goes entirely through the bone.

Mainly, it is seen in long bones like 

• Femur(thigh)
• Tibia(shin)
• Fibula(calf)
• Humerus(upper arm)
• Radius and ulna(upper arm)
• Clavicle (collar bone)

Transverse Fractures are caused by trauma, like a fall, by car accident, sports injury.³

Depending upon the type of bone involved, the causes of the break &  patient's health condition, the choice of treatment may vary; it can be surgery, splints or casts or braces.

If the fracture is mild, the bone has not moved far apart from the original place, then the splints & casts are enough for that case. Splinting usually takes 3 to 5 weeks. For the casts, it lasts about 6 to 8 weeks longer. In both cases, X-ray follow-up is needed to assess the correct bone healing.

In the case of the bone being moved far apart, such that a gap is formed between the bones,² surgeries are needed to repair the break. Braces or brackets are used to connect the broken bony parts.

Overview of transverse fractures

A transverse fracture is a simple fracture, which the bone is broken into two pieces or is segmented. It can occur in any bone, but is most commonly seen in the shaft of long bones like the femur, tibia.

This type of fracture is often caused by direct trauma or blow to the bone, or fall from height, sports injuries, overuse and repetitive stress on the bone.

Other factors, like weakened bone condition osteoporosis, certain medications, also increase the risk of bone injury.⁴

Symptoms include pain, swelling, bruising, or discolouration, and inability to move the affected limb or joint. Deformity or misalignment of bone, a popping or cracking sound at the time of injury.

A variety of diagnostic imaging tests are used to confirm the transverse fractures. X-rays, computerised tomography(CT SCAN), and magnetic resonance imaging(MRI SCAN) are used to detect & confirm transverse fractures.

X-rays are the first diagnostic tool used to diagnose transverse fractures.

Principles of immobilisation

Immobilisation is a process of holding a bone or a joint in place with a cast, splints, or braces. This prevents the injured area from being moved when it heals. It can help reduce pain, swelling, and muscle spasms. Fracture management aims to restore the bone to a solid, firm form for its proper function.

Indications of immobilisation:

• Immobilisation or restricted movement of the affected bone area is very important for effective fracture healing. It is applied when the fracture is severe, and it requires stabilisation to prevent further damage or displacement
• Or if the fracture involves joints, then immobilisation is needed to promote early healing & prevent further complications & deformities
• Or even if the fracture is in such a location of the bone that delays bone healing & an external support is necessary as in hands & foot⁵

Splints

Definition and function

Wearing splints is a common treatment for lots of injuries.⁷

Splints are the non-circumferential,⁶ immobilisers that accommodate swelling. It is used in acute fractures, sprains, also for the initial stabilisation of reduced, displaced and unstable fractures before orthopaedic intervention.

To get maximum benefits & to reduce complications, splints are used for short-term cases, and it's a temporary immobiliser. Careful monitoring is required for all patients who are placed in the splints to ensure proper recovery.

Types of splints

Upper extremity splints

1. Ulnar gutter splints

Indication and 5th metacarpal fractures, boxer’s fractures.

• Radial gutter

Indication: Fracture of 2nd &3rd metacarpal and phalanges.

• Thumb spica splints

Indication: scaphoid injuries, navicular injuries, ligamentous injuries to the thumb,1st metacarpal fractures

• Sugar-tong

Indications: initial treatment of fracture of radius & uln

• Long arm posterior splints

Indication: elbow, proximal and mid-shaft forearm, wrist fractures.

Indications

Splints are used to treat various types of injuries 

• Sprains, muscle strains, tendon or ligament injuries, bone fractures, and dislocations. We need to wear splints in certain health conditions that affect our brains, muscles, and bone joints, such as 
• Peripheral neuropathy, arthritis, joint hypermobility syndrome
• neurological conditions like multiple sclerosis or cerebral palsy
• After orthopaedic surgery                                    

Casts

Casts are most commonly used to hold a part of the body in a place while you are healing after a bone fracture.⁹

Casts are used for long-term immobilisation, and custom-made casts are used according to the patient's fit.

The type of cast used depends on the location of the fracture, its severity, the patient’s age and activity level.

There are two types of casts, 

• Fibreglass & 
• Plaster

Fibreglass is more durable & lighter than plaster, and is most commonly used.

You may be able to choose the colour of the casts in the case of fibreglass.

Plaster is easier to work with, given the shape of the body. Plaster is most commonly used in the case of a displaced fracture, where broken bone is pushed out of its usual place.

Procedures 

Initially, health care providers thoroughly examine the fracture before applying a cast around the broken bone. They will also realign the bone to make sure it heals correctly.

Closed reduction or surgery is needed, depending on the types of fractures.

During closed reduction, to line up the broken bone on the inside, the provider will push and pull the body on the outside. They will also administer a type of anaesthesia to make the area painless.

Surgery is needed for a severe bone fracture. Internal fixation is the most commonly applied bone fracture surgery. The surgeon will put a piece of metal into your bone to hold it in place while it heals. This procedure is done under general anaesthesia. Once the bone is ready to set, the provider will put a cast on it, and it's safe to immobilise it.

Application of cast

1. The health care provider will put a soft, stretchy fabric called a stockinette around your broken bone
2.  They will roll a cotton or another soft padding (fibreglass & plaster) over the stockinette. The stockinette and padding together will help to heal the area and prevent swelling by providing a constant, light pressure on the area
3. The provider will moisten the roll of strips and put them around the body
4. Keep layering the fibreglass or plaster roll of strips around the fracture until the cast is completed
5. The fibreglass cast will dry fast and might take a few hours. The plaster will take a day or two to harden
6. The health care will provide special instructions for the cast when it's drying

Types of cast

1. Short arm cast:¹⁰ Also called a below elbow cast, used for circumferential immobilisation cast  for the forearm, wrist

Indication: distal forearm fractures, carpal wrist fractures, metacarpal fractures,

• Long arm cast:¹¹ Static orthosis for positioning of the elbow.

 Indication: distal radius fractures, distal ulnar fractures, pediatric forearm fractures, pediatric elbow dislocations.

• long leg cast:¹² Conservative treatment

• Sarmiento cast: It is used as the last treatment option for tibia fractures.

Advantages 

A cast is usually best for the protection of a bone after a fracture, when it heals. They are extremely safe & effective. Once our bone has healed, it is very easy & quick to remove a cast.

Risk of wearing a cast

Fewer complications are there

• Skin
• Pressure sore
• Deep vein thrombosis
• Infections
• Cast application

Braces

Definition and function

A brace is designed to stabilise the broken bone or surgery site, allowing you to perform a limited range of motion and weight-bearing exercises like light walking, daily activities.

Braces are designed to help increase circulation to decrease swelling.

Braces are available in a combination of metals, hard plastic, elastic material, and soft pads, straps. Braces are available in various sizes, shapes, and colours.

Types of braces

• Functional braces

Effective therapeutic modality for tibia, humerus, and ulna fractures.it is used to support fracture instability during the healing stage.¹³

Proper use and care are critical to obtain the desired results. It's available in different sizes, shapes, and brands.

• Sarmiento braces

Indications

Conservative fracture treatment at the extremities. Like humerus shaft, ulna shaft, tibia, or lower leg fractures. Long-term immobilisation avoids the risk of fracture.¹⁴

Advantages and limitations

Increase stability and pain reduction.

It promotes mobility. support, warmth, relieves pain and aches, hence prevents injury.

It prevents the progression of the disease.¹⁵

It cannot be used in any type of fracture.

Complications and management

Transverse fracture surgery complications include

• Acute compartment syndrome: the pressure inside the muscle may stop blood from getting into the tissues, which leads to permanent nerve & muscle damage
• Malunion: it happens during the healing stage, when the broken bones do not line up correctly 
• Non-union: normal growth of bones does not occur after the fracture
• Osteomyelitis: bone infection happens when the fractured bone site gets exposed to an outside environment (open fracture), increasing the chances of bacterial infection
• Fracture can damage the internal structures around the injury, like nerves, vessels, muscles, and ligaments

Patient education and monitoring

The recovery from a transverse fracture is a very long, challenging p[process. It is necessary to take the required steps to enhance proper healing & prevent further complications.

1. It is important to follow the doctor's instructions closely, to take prescribed medication, and also to follow up on appointments
2. Rest & protect the affected limb area by avoiding weight-bearing exercise to avoid further injury, and use assistive devices such as crutches, a walker, or a wheelchair as recommended by the doctor
3. Physical therapy can help to restore strength, mobility & flexibility of the affected bone area
4. Maintaining a healthy and nutritious diet can help to promote healing, strengthen the bones, and try to make sure to include calcium, vitamin D supplements, green leafy vegetables, and fish
5. Managing pain and swelling by medication, applying ice and elevating the affected limb may relieve pain & swelling.
6. Avoid bad habits like smoking & alcohol, as they may interfere with bone healing
7. It's important to resume normal activity with the guidance of a doctor
8. It's important to monitor the complications like increased pain, swelling, fever, or numbness
9. Maintaining a positive attitude will help to improve overall well-being & the healing process

Special considerations

• In pediatric patients¹⁶

Bone fractures in pediatric patients are common due to their active lifestyle, and also their bones are more flexible and still growing.

Conservative management with cast immobilisation is a safe & effective treatment for forearm fractures in pediatric patients. Surgical intervention is recommended when an acceptable reduction is not obtained with closed reduction and casting, because the child's ability to remodel. Green stick fracture, bone bend or cracks rather than a fracture of one or a complete fracture of another bone, reduction by rotation is used.

Flexible intramedullary nailing is a suitable option in pediatric patients for forearm fractures.

• Elderly or osteoporotic patients¹⁷

The reduction in fracture risk is greater in individuals, osteoporosis is characterised by low bone mass, microarchitectural deterioration of bone tissue, and decreased bone strength.

The estimate indicates that 50%of women & 20% men aged 50 and above are experiencing osteoporosis-related bone fractures. A hip fracture is more devastating.

Most recent studies show that vitamin and calcium supplements reduce the risk of bone fractures. Bisphosphonates will improve bone density.

• In athletes & active patients¹⁸

Stress fractures are the most common injuries in athletics and those who do more physical work. usually overuse injuries. This happens when physical activity produces too much pressure on bone, it initially showing as small bone bruises & later it becomes evident as a bone fracture. 

Conclusion

Immobilisation techniques such as splints, casts, and braces play an important role in the management of transverse fractures by stabilising the bone, minimising movements, reducing pain, and promoting optimal healing.

Treatment options for transverse fractures depend on the severity & the location of injury.

Non-surgical approaches include immobilisation of the affected area with a cast or braces, rest, and physical therapy.

For more severe bone fractures, surgical intervention is needed to realign the bones & stabilise the broken fragments with plates, screws, and hardware.

Splints are typically used for initial stabilisation, while a cast allows more rigid & long-term immobilisation. Bracers are used during the later stage of healing, offering adjustable support.