Pseudoarthrosis: why a fracture doesn't heal and how it's treated

When a fracture occurs, the bone usually heals gradually over time. However, in some cases this healing process is not completed as it should be, resulting in what is known as pseudoarthrosis.

What is a pseudoarthrosis and why does a fracture not heal?

Pseudoarthrosis is an alteration in the healing process of a fracture in which the bone does not fully heal. Instead of forming solid bone tissue, an area of instability persists that can behave like a "false joint".

A fracture may not heal when the balance necessary for bone regeneration is disrupted. Consolidation It depends on mechanical stability and the biological capacity for healing.; If any of these factors fail, the process may slow down or stop.

What is the difference between delayed union and pseudoarthrosis?

Consolidation delay occurs when The bone takes longer than expected to heal., But the process is still active. Although the evolution is slower, there is still potential for a cure without complex treatments.

Pseudoarthrosis, on the other hand, occurs when Consolidation stalls and there are no signs of union over time. In these cases, a specific approach is usually necessary to get the bone to heal.

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What causes a fracture to not heal properly?

The healing of a fracture can be affected by various factors. factors that alter both the stability of the area and the bone's ability to regenerate. When these conditions are not suitable, the healing process can slow down or even stop.

In general, the causes tend to combine mechanical and biological aspects. Identifying them is key to understanding Why a fracture doesn't heal as expected and guide the treatment correctly.

How do tobacco, infection, or lack of bone stability affect the condition?

Some factors directly influence the bone's ability to consolidate:

• Tobacco: It reduces blood flow and limits the arrival of oxygen and nutrients to the fracture site.
• Infection: It alters the biological environment necessary for healing and hinders consolidation.
• Lack of bone stability: Excessive movement between fragments prevents the formation of a solid bone bridge

What symptoms can a pseudoarthrosis cause?

Pseudoarthrosis can manifest in different ways Symptoms that usually appear when the fracture has not healed properly. Among the main ones are:

• Persistent pain in the area of the fracture
• Feeling of instability or lack of firmness
• Difficulty supporting or using the limb
• Persistent or recurrent inflammation
• Abnormal mobility at the fracture site

When might persistent pain after a fracture indicate poor healing?

Pain after a fracture is normal in the early stages, but it should gradually decrease over the following weeks. When this does not happen and The pain remains unchanged or even increases, is a warning sign.

It should also be evaluated when the pain persists beyond the expected healing time or recurs upon resuming activity. In these cases, it may indicate that The bone has not healed properly and requires a specific evaluation..

How is a pseudoarthrosis diagnosed?

The diagnosis of a pseudoarthrosis is based on the clinical evolution and the confirmation through imaging tests. The persistence of symptoms along with the lack of consolidation in medical check-ups points to this problem.

What imaging tests confirm that the bone has not healed?

For confirm that a fracture has not healed properly, Various imaging tests are used:

• Radiography: It allows for the assessment of the absence of a bone bridge and the persistence of the fracture line.
• Computed tomography (CT): It offers more detail to analyze the lack of connection between fragments.
• Magnetic resonance imaging (MRI): It helps to assess the condition of the tissues and any associated complications.
• Bone scintigraphy: It can be used in specific cases to assess the biological activity of bone.

What types of pseudoarthrosis exist and why is it important to differentiate between them?

Not all pseudoarthrosis is the same, and differentiating them allows us to... to better understand why the fracture has not cured. This classification guides the treatment, since a problem due to lack of stability is not the same as one due to a biological deficiency.

What changes between atrophic, hypertrophic, and infected pseudoarthrosis?

Based on their characteristics, several can be distinguished. types of pseudoarthrosis:

• Atrophic pseudoarthrosis: There is low biological activity, with little new bone formation and impaired blood flow.
• Hypertrophic pseudoarthrosis: There is good biological capacity, but stability is lacking, which prevents the bone from healing.
• Infected pseudoarthrosis: It is associated with an infection in the area, which complicates both healing and treatment.

What is the treatment for pseudoarthrosis?

The treatment for a pseudoarthrosis depends on the type, cause, and clinical situation of each case. The goal is create the necessary conditions for the bone to heal, combining measures that improve stability and biological response.

In many cases surgery is necessary, but before We are assessing whether there are less invasive options depending on the evolution and characteristics of the fracture.

When can non-surgical treatment be attempted?

Non-surgical treatment may be considered in the initial stages or when There is still healing capacity. It is usually considered in cases of delayed consolidation or pseudoarthrosis with some stability.

It can also be assessed when The symptoms are mild and there are no signs of complications.. These options include measures such as immobilization, control of risk factors, or therapies that stimulate bone regeneration.

What reconstruction options exist to treat a pseudoarthrosis?

When The fracture has not healed and is not responding to conservative measures., Surgical treatment is usually necessary. The goal is to promote bone healing and reactivate the regeneration process using various techniques tailored to each individual case.

When are bone grafts, osteosynthesis, or biological techniques used?

Depending on the cause and type of pseudoarthrosis, the following may be used: different reconstruction options:

• Bone grafts: They are used when there is a deficiency of bone tissue or low regenerative capacity
• Osteosynthesis: It allows the fracture to be stabilized using plates, screws, or nails.
• Biological techniques: These include the use of growth factors or other strategies to stimulate bone formation

What is recovery like after pseudoarthrosis surgery?

Recovery after surgery for pseudoarthrosis depends on the type of procedure and the patient's condition. It usually requires a Progressive monitoring, with pain control, recovery of mobility, and load adaptation until proper bone healing is achieved.

In Elgeadi Clinic We conduct a precise assessment tailored to each individual case. If you need an evaluation, make an appointment with our team