Dr. Philip Mostert

Dr. Philip Mostert Specialising in shoulder, hip, and knee surgeries, Dr. Mostert provides expert, patient-centered care at Johannesburg Surgical Hospital in Northcliff.

Orthopaedic care is not just about treating joints — it’s about restoring movement, confidence, and quality of life.Dr P...
09/04/2026

Orthopaedic care is not just about treating joints — it’s about restoring movement, confidence, and quality of life.

Dr Philip Mostert has a deep passion for shoulder, hip, and knee surgery, with a focus on achieving the best possible outcomes for each patient. Every condition, every lifestyle, and every goal is different — which is why treatment is never one-size-fits-all.

From conservative management to advanced surgical techniques, the approach is always guided by what is most appropriate for the individual patient.

Seeing patients regain mobility, return to activity, and move without pain is what drives the work every day.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Should you rest your shoulder — or keep moving it?Rest can help early on, but too much rest may lead to stiffness and sl...
01/04/2026

Should you rest your shoulder — or keep moving it?

Rest can help early on, but too much rest may lead to stiffness and slower recovery.

Conditions like tendinitis, impingement, muscle strain, and early osteoarthritis often improve with the right balance of movement and physiotherapy — not complete rest.

Gentle, guided movement helps maintain mobility and support healing.

If shoulder pain isn’t improving or you’re unsure how to manage it, a proper assessment can guide the right approach.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎ (011) 794 5758

Not all shoulder pain is the same — but osteoarthritis often follows a gradual pattern.You may notice increasing stiffne...
27/03/2026

Not all shoulder pain is the same — but osteoarthritis often follows a gradual pattern.

You may notice increasing stiffness, reduced movement, and a deep, aching pain that worsens with activity or at the end of the day. Everyday tasks like reaching, lifting, or dressing can start to feel more difficult.

A proper diagnosis is based on a clinical assessment and, when needed, imaging such as X-rays to evaluate changes within the joint.

If shoulder pain is persistent or slowly getting worse, it’s worth having it assessed to understand the cause and guide the right treatment.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎ (011) 794 5758

A Bankart lesion occurs when the cartilage (labrum) at the front of the shoulder is torn, often after a shoulder disloca...
25/03/2026

A Bankart lesion occurs when the cartilage (labrum) at the front of the shoulder is torn, often after a shoulder dislocation. This can lead to ongoing instability, where the shoulder feels like it may “slip” or dislocate again.

This type of injury is common in contact sports and activities involving overhead movement.

When instability persists, a Bankart repair may be recommended. This procedure restores stability by repairing the torn labrum and supporting structures, helping to reduce the risk of future dislocations.

Accurate diagnosis and appropriate treatment are key to restoring confidence, stability, and a safe return to activity.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎ (011) 794 5758

If you’ve felt shoulder pain during or after overhead lifts — like shoulder press, bench press, or lifting above your he...
23/03/2026

If you’ve felt shoulder pain during or after overhead lifts — like shoulder press, bench press, or lifting above your head — it’s something many people experience.

Repeated weight training can place strain on the shoulder over time, especially with poor form, heavy loads, or limited recovery. What starts as mild discomfort can develop into conditions such as tendon irritation, shoulder impingement, or rotator cuff strain.

Ignoring early symptoms like pain, weakness, or stiffness can lead to more persistent issues.

The key is not to push through it. Proper assessment helps identify the cause and guide the right treatment so you can return to training safely.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Shoulder stiffness can develop gradually and often becomes noticeable when simple movements start to feel restricted — r...
18/03/2026

Shoulder stiffness can develop gradually and often becomes noticeable when simple movements start to feel restricted — reaching overhead, fastening clothing, or moving the arm behind your back.

One common cause is frozen shoulder (adhesive capsulitis), a condition where the joint capsule becomes inflamed and tight, leading to pain and limited movement. Stiffness can also occur after injury, prolonged immobility, or inflammation within the shoulder joint.

Over time, reduced movement can make the joint feel increasingly tight, which may further limit normal shoulder function.

Early assessment can help identify the underlying cause and guide appropriate treatment to restore mobility and reduce discomfort.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Reverse shoulder replacement is a specialised procedure used when the rotator cuff tendons are severely damaged and the ...
16/03/2026

Reverse shoulder replacement is a specialised procedure used when the rotator cuff tendons are severely damaged and the shoulder joint can no longer function normally.

In this surgery, the natural ball-and-socket structure of the shoulder is reversed. This allows other muscles, particularly the deltoid muscle, to help lift and move the arm when the rotator cuff is no longer able to do so.

This procedure is often recommended for patients with severe rotator cuff tears, advanced arthritis, or complex shoulder injuries.

The goal is to reduce pain, improve shoulder function, and restore independence in daily activities.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

The shoulder is one of the most complex and mobile joints in the body. Its wide range of movement is made possible by se...
13/03/2026

The shoulder is one of the most complex and mobile joints in the body. Its wide range of movement is made possible by several important structures working together.

Muscles such as the deltoid and rotator cuff help move and stabilise the joint, while structures like the bursa reduce friction between tissues. The labrum helps deepen the socket of the shoulder, improving stability as the arm moves.

Because so many structures work together in a relatively small space, problems affecting any one of them can lead to pain, weakness, or reduced movement.

Understanding shoulder anatomy helps explain why accurate diagnosis is important when assessing shoulder pain or injury.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Not all shoulder pain starts in the shoulder.The neck and shoulder are closely connected, and irritation in the cervical...
24/02/2026

Not all shoulder pain starts in the shoulder.

The neck and shoulder are closely connected, and irritation in the cervical spine can refer pain into the shoulder and even down the arm. Sometimes what feels like a shoulder injury is actually coming from the neck.

A few clues can help distinguish the source:

Pain triggered mainly by arm movement often suggests a shoulder joint problem.

Pain that worsens with neck movement, or travels down the arm with tingling or numbness, may point to the cervical spine.

Localised weakness can suggest rotator cuff involvement, while nerve-related symptoms tend to feel more widespread.

Correct diagnosis matters. Treating the wrong source can delay recovery and prolong discomfort.

If shoulder or arm pain is persistent or unclear, a proper assessment can help determine where it’s truly coming from and guide the most appropriate treatment.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

DrMostert

A dislocated shoulder is a common injury in contact sports, rugby, cricket, tennis, swimming, and gym training. It happe...
18/02/2026

A dislocated shoulder is a common injury in contact sports, rugby, cricket, tennis, swimming, and gym training. It happens when the upper arm bone slips out of the shoulder socket, often after a fall, tackle, or sudden impact.

Symptoms may include severe pain, visible deformity, swelling, and difficulty moving the arm. Even after the shoulder is put back into place, instability can remain — especially in younger or active individuals.

Repeated dislocations or ongoing instability may require further assessment to prevent long-term damage and reduce the risk of future injury.

Early evaluation is important, particularly for athletes wanting a safe return to sport.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Oestrogen has anti-inflammatory properties and plays an important role in tendon and joint health. During perimenopause,...
16/02/2026

Oestrogen has anti-inflammatory properties and plays an important role in tendon and joint health. During perimenopause, when oestrogen levels begin to fluctuate and decline, inflammation may increase in tissues where oestrogen receptors are present — including the rotator cuff tendons of the shoulder.

Some women notice new or worsening shoulder pain, stiffness, or tendon-related discomfort during this phase of life. This is not coincidental. Hormonal changes can influence tendon resilience, pain sensitivity, and inflammatory responses.

However, while hormonal shifts may contribute to symptoms, underlying conditions such as rotator cuff tendinopathy, impingement, or early degenerative changes should still be properly assessed.

Understanding this connection allows for a more holistic and informed approach to treatment.

If shoulder pain has developed or worsened during perimenopause, a clinical assessment can help clarify the cause and guide appropriate management.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

DrMostert JointHealth

In shoulder surgery, small incisions usually refer to minimally invasive or arthroscopic techniques. These allow the sho...
10/02/2026

In shoulder surgery, small incisions usually refer to minimally invasive or arthroscopic techniques. These allow the shoulder joint to be treated using specialised instruments and a camera, with less disruption to surrounding tissue.

Smaller incisions can mean reduced post-operative pain, smaller scars, and a smoother recovery. It’s important to remember that small incisions don’t mean a simple procedure — the surgery itself can still be complex.

Dr Philip Mostert explains the surgical approach clearly so patients understand what to expect and feel confident about their care.

📞 Dr Philip Mostert
📍 Johannesburg Surgical Hospital
☎️ (011) 794 5758

Address

Johannesburg Surgical Hospital, Second Floor, Suite 4
Randburg
2195

Telephone

+27117945758

Website

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