Osteoarthritis – Symptoms, Diagnosis and Individual Treatment Options

Osteoarthritis is a degenerative joint disease that can cause joint pain, stiffness and loss of mobility. However, the diagnosis alone does not determine the right treatment. The appropriate approach depends on the affected joint, the stage of osteoarthritis, the severity of osteoarthritis symptoms, functional limitations and the individual goals of the patient.

For Prof. Joachim Grifka, the guiding principle is to preserve the natural joint whenever this is medically reasonable. Appropriate conservative treatment options should be used before replacement surgery is considered. If osteoarthritis becomes severe to a stage at which pain and loss of function remain substantial despite optimized treatment, surgery may become the appropriate next step.

The decision should be based on symptoms, physical function, clinical examination and imaging findings together – not merely on the appearance of osteoarthritis on an X-ray.

In brief: osteoarthritis cannot currently be cured by restoring a completely well functioning joint. Treatment aims to reduce pain, relieve stiffness, maintain mobility, preserve the affected joint where possible and identify the appropriate time for surgery if conservative and joint-preserving treatment no longer provide sufficient benefit.

Looking for an individual assessment of your osteoarthritis?

Prof. Joachim Grifka provides orthopedic consultations in Regensburg and can assess which treatment strategy is appropriate for your individual situation.

What Is Osteoarthritis?

Osteoarthritis is a degenerative joint disease involving considerably more than simply “worn cartilage”.

Osteoarthritis is one of the most common musculoskeletal diseases worldwide. Current global estimates indicate that hundreds of millions of people are affected. The disease burden increases with age and can substantially limit mobility, independence and quality of life, particularly when the knees or hips are involved.

In a healthy joint, articular cartilage forms a smooth layer of protective cartilage over the ends of the bones. This allows movement with very little friction and helps distribute mechanical load.

As osteoarthritis develops, the articular cartilage becomes rougher, damaged and progressively thinner. However, osteoarthritis affects the entire joint rather than the cartilage alone. Changes can also occur in the subchondral bone, synovial membrane, joint lining, joint capsule, ligaments and muscles surrounding the joint.

Changes in the subchondral bone may include increased bone density and remodeling. Synovial inflammation can contribute to osteoarthritis pain and swelling. Increased vascularity in the synovium may also occur in more advanced osteoarthritis.

At the biological level, inflammatory mediators also contribute to disease progression. Proinflammatory cytokines such as IL-1β and TNFα can promote cartilage catabolism, while degradation products released from damaged joint tissues may stimulate further synovial inflammation.

Articular cartilage itself does not contain pain-sensitive nerves. This is one reason why osteoarthritis cartilage damage visible on imaging does not necessarily correspond directly to the amount of pain experienced by the patient.

Bone marrow lesions, synovial inflammation, changes in the subchondral bone, muscle weakness and altered joint mechanics may all contribute to symptoms.

Primary and Secondary Osteoarthritis

Primary osteoarthritis develops without one single identifiable underlying cause. Age, genetics, mechanical loading and other risk factors can contribute to the development of primary osteoarthritis.

Secondary osteoarthritis develops following an identifiable condition or event. Causes can include previous joint injury, malalignment, hip dysplasia, femoroacetabular impingement or other structural abnormalities.

Patients with secondary osteoarthritis may develop osteoarthritis considerably earlier in life. Previous trauma can also lead to post traumatic osteoarthritis.

Both primary osteoarthritis and secondary osteoarthritis require an individualized assessment because the underlying mechanical and biological factors can influence treatment.

Which Joints Are Commonly Affected by Osteoarthritis?

Osteoarthritis can affect almost any synovial joint. Hip and knee osteoarthritis are particularly important because they can significantly affect walking, mobility and independence.

Osteoarthritis also occurs in the hands, spine and other joints.

Osteoarthritis becomes increasingly common with age, and radiographic changes can be found in many older adults even when symptoms are limited. Importantly, structural changes visible on X-rays do not necessarily correspond to the severity of joint pain or functional impairment.

Knee Osteoarthritis - Articular cartilage destruction

Knee osteoarthritis is one of the most common forms of peripheral joint osteoarthritis.

Osteoarthritis of the knee can affect different areas of the knee joint, including the medial, lateral and patellofemoral compartments. Medial knee osteoarthritis is particularly common when varus alignment places increased load on the inner part of the knee.

Knee extensor muscle weakness may further reduce stability and influence mechanical loading of the knee joint.

Typical knee osteoarthritis symptoms include:

activity-related knee pain
start-up pain after sitting or resting
stiffness
swelling
reduced range of motion
difficulty walking or climbing stairs

Knee osteoarthritis pain does not always correspond directly to the severity of cartilage degeneration visible on imaging.

A patient may have advanced radiographic changes but relatively moderate symptoms. Another patient may experience significant knee osteoarthritis pain despite less striking structural changes.

For this reason, symptomatic knee osteoarthritis should always be assessed clinically. Osteoarthritis of the knee should not be treated solely according to an X-ray grade.

Treatment of knee osteoarthritis may include training therapy, medication, selected injections, correction of mechanical factors and, when appropriate, joint-preserving surgery.

For severe knee osteoarthritis, knee partial or total knee replacement can become appropriate when conservative treatment no longer provides sufficient relief.

Hip Osteoarthritis

Hip osteoarthritis commonly causes pain in the groin, buttock or lateral hip. Patients may notice reduced hip rotation, difficulty putting on shoes or socks, reduced walking distance or increasing problems with everyday mobility.

Hip osteoarthritis can develop as primary osteoarthritis, but secondary osteoarthritis of the hip may result from structural problems such as hip dysplasia or femoroacetabular impingement.

As with knee and hip osteoarthritis generally, the intensity of symptoms is particularly important when treatment decisions are made.

The presence of structural damage alone does not automatically mean that surgery is necessary.

Treatment of hip osteoarthritis can range from conservative therapy and training to joint-preserving treatment and, for advanced disease, hip replacement.

Osteoarthritis of the Hands and Other Joints

Osteoarthritis may also affect the finger joints and the base of the thumb. Hand osteoarthritis can make gripping, writing and other everyday activities more difficult.

Erosive osteoarthritis is a less common form of hand osteoarthritis associated with more pronounced inflammatory and structural changes.

Degenerative disease can also affect facet joints of the spine. However, back and neck pain can have many different causes, and degenerative findings should always be interpreted together with the clinical symptoms.

What Are the Symptoms of Osteoarthritis?

Osteoarthritis symptoms usually develop gradually and may fluctuate over time.

Not every patient experiences the same symptoms, and osteoarthritis progression can differ considerably between individuals.

Five common osteoarthritis symptoms are:

Activity-related joint pain
Pain may occur during walking, standing, climbing stairs or other activities that place load on the affected joint.
Joint stiffness after rest
Stiffness is often noticeable after sitting for a longer period or during the first movements in the morning.
Reduced range of motion
The affected joint may become increasingly difficult to bend, straighten or rotate.
Swelling or recurrent irritation
Synovial inflammation can cause swelling, warmth or recurrent joint effusion. Some patients also notice crepitus – a grinding, grating or crackling sensation during joint movement. This is particularly common in knee osteoarthritis, although the presence of crepitus alone does not indicate how severe the disease is.
Functional limitation
Joint pain and stiffness may interfere with walking, climbing stairs, dressing, carrying objects or other activities of daily life.

In early osteoarthritis, pain is frequently related to load and activity.

As osteoarthritis progresses, osteoarthritis pain may become more persistent. Severe symptoms can include pain at rest, night pain and chronic pain that interferes with sleep and everyday activities.

The impact of the disease therefore depends not only on osteoarthritis cartilage damage but also on how symptoms affect physical function and quality of life.

How Is Osteoarthritis Diagnosed?

Osteoarthritis is diagnosed primarily through a detailed medical history and physical examination. Imaging can support the diagnosis but should not replace clinical assessment.

Medical History and Physical Examination

The physician assesses the location and pattern of joint pain, duration of stiffness, previous joint injury, changes in mobility, functional limitations, previous treatments and individual expectations and goals.

During the physical examination, the affected joint may be assessed for tenderness, swelling, alignment, stability, muscle strength and range of motion.

The examination also helps distinguish between degenerative disease and rheumatoid disease and other forms of inflammatory arthritis or rheumatic diseases.

X-Rays

X-rays remain an important first-line imaging technique for many patients with suspected osteoarthritis.

Typical findings include joint space narrowing, osteophytes or bone spurs, changes in the subchondral bone, cystic changes, altered alignment and joint deformity.

For osteoarthritis of the knee, weight-bearing X-rays can be particularly useful because they show the knee under mechanical load.

The Kellgren-Lawrence system is frequently used to classify the severity of radiographic osteoarthritis.

However, radiographic osteoarthritis does not automatically determine the severity of symptoms.

An X-ray alone should therefore not determine whether a patient receives conservative treatment, joint-preserving surgery or joint replacement.

The clinical decision should combine imaging findings with osteoarthritis symptoms, physical function, examination findings and the patient’s individual goals.

When is MRI Useful?

MRI can provide additional information about articular cartilage, bone marrow lesions, menisci, ligaments, synovial tissue and other joint tissues.

MRI may be useful in selected cases, particularly when symptoms are atypical, early osteoarthritis is suspected or joint-preserving treatment is being considered.

MRI is not routinely required for every patient with primary osteoarthritis.

Blood Tests

Blood tests do not diagnose osteoarthritis.

They may be used when necessary to exclude conditions such as rheumatoid arthritis, inflammatory arthritis, gout or other rheumatic diseases.

What Are the Risk Factors for Osteoarthritis?

There are several risk factors that can increase the likelihood that a person will develop osteoarthritis.

Some risk factors cannot be changed, while others can potentially be influenced.

Non-Modifiable Risk Factors

Age

Osteoarthritis becomes more common in older adults, although degenerative joint disease should not simply be considered an unavoidable consequence of aging.

Genetics

Genetic factors can influence the likelihood of developing primary osteoarthritis.

Sex

Several forms of osteoarthritis are more common in women, particularly after menopause.

Anatomical factors

Hip dysplasia, femoroacetabular impingement and certain alignment abnormalities can increase the likelihood of secondary osteoarthritis.

Modifiable Risk Factors

Excess body weight

Additional weight increases the mechanical load on weight-bearing hip joints and the knee joint.

Muscle weakness

Knee extensor muscle problems and insufficient hip muscle strength can affect joint stability and load distribution.

Previous joint injury

Ligament injuries, meniscal injuries and fractures can increase the likelihood of post traumatic osteoarthritis.

Repetitive mechanical overload

Certain occupational and sporting activities can place substantial repetitive load on joint tissues.

Malalignment

Varus or valgus alignment can concentrate mechanical stress in one part of the knee joint.

Risk factors do not mean that an individual will inevitably develop osteoarthritis. They help explain why osteoarthritis develops and which potentially modifiable factors should be considered during treatment and prevention.

How Is Osteoarthritis Treated?

There is no single best treatment for osteoarthritis.

The optimal approach depends on the affected joint, the stage of osteoarthritis, osteoarthritis pain and other symptoms, physical function, structural findings, risk factors, accompanying medical conditions and the patient’s individual goals.

Prof. Grifka follows a staged treatment strategy.

Conservative treatment should generally form the foundation of care. If appropriate, joint-preserving treatment may provide another option before replacement surgery is considered.

Only when advanced disease causes substantial pain and functional impairment despite appropriate treatment should replacement become the next therapeutic step.

Exercise and Training Therapy for Osteoarthritis

Targeted exercise is a central part of treatment for knee osteoarthritis and hip osteoarthritis.

Appropriate training can reduce pain, relieve stiffness and improve physical function.

Strength Training

Strong muscles surrounding the affected joint can improve stability and mechanical load distribution.

For knee osteoarthritis, strengthening the quadriceps and other muscles controlling the knee is particularly important.

Mobility Training

Maintaining joint mobility can help preserve everyday function and reduce stiffness.

Neuromuscular and Balance Training

Improving coordination and movement control can support joint stability, particularly in knee OA and hip and knee osteoarthritis.

Low-Impact Endurance Exercise

Walking, cycling and swimming can help maintain cardiovascular fitness and mobility without unnecessary high-impact loading.

Appropriate movement should therefore usually be part of osteoarthritis treatment rather than automatically avoided.

In symptomatic knee osteoarthritis, the training program should be adapted to the individual patient instead of relying on a generic instruction to rest.

Can Knee Osteoarthritis Progression Be Slowed?

No exercise program can guarantee that knee osteoarthritis will stop progressing.

However, maintaining muscle strength, engaging in regular joint-compatible exercise, managing body weight where relevant and addressing abnormal mechanical load may improve joint function and reduce potentially modifiable contributors to osteoarthritis progression.

For osteoarthritis of the knee, the goal is not to find one exercise that “repairs” osteoarthritis cartilage. The objective is to improve the mechanical and functional environment of the knee and help the patient remain active.

Lifestyle Changes for Osteoarthritis

Lifestyle changes can play an important role in osteoarthritis management.

Weight Management

For patients with excess weight and hip or knee osteoarthritis, weight reduction can decrease mechanical stress on the affected joint and may reduce symptoms.

Activity Modification

Activities that repeatedly aggravate symptoms can sometimes be modified without abandoning physical activity.

Ergonomics

Workplace setup, seating, footwear and everyday movement patterns may be adjusted where mechanical factors contribute to symptoms.

General Fitness

Maintaining cardiovascular fitness, muscle strength and mobility becomes particularly important for older adults.

Patients may also have cardiovascular, metabolic, musculoskeletal and skin diseases or other medical conditions that influence the appropriate treatment strategy.

Lifestyle changes should therefore be individualized rather than reduced to generic advice.

Complementary approaches may also be considered in selected patients. Acupuncture can provide modest improvements in pain relief for some people with osteoarthritis, but it should be regarded as an adjunct rather than a substitute for individualized exercise therapy and other established treatments.

Not sure whether conservative treatment is still appropriate or surgery should be considered?

An orthopedic assessment can help determine which options match your symptoms, joint damage, functional limitations and personal goals.

Medication for Osteoarthritis Pain

Medication can play a supportive role in treating osteoarthritis pain.

Depending on the affected joint and the individual risk profile, topical or oral non-steroidal anti-inflammatory drugs may be considered.

The objective is primarily pain relief that allows the patient to remain active and participate in training and everyday activities.

Medication does not restore damaged articular cartilage or reverse degenerative joint disease.

Treatment must also take potential gastrointestinal, cardiovascular and renal risks into account.

Some patients also ask about supplements such as glucosamine. Studies have reported small symptomatic benefits with certain glucosamine preparations, but results are inconsistent. Glucosamine should therefore not be regarded as a treatment that prevents osteoarthritis progression or restores damaged cartilage.

Injections for Osteoarthritis

Injections may be considered as part of an individualized treatment strategy when exercise, lifestyle measures and medication do not provide sufficient pain relief.

Intra-Articular Corticosteroid Injections

Intra articular corticosteroid injections may provide temporary pain relief, particularly during episodes associated with increased inflammation.

They do not regenerate damaged cartilage and repeated injections require careful consideration.

Hyaluronic Acid

Hyaluronic acid may be considered in selected patients, particularly for symptomatic knee osteoarthritis.

Evidence regarding the magnitude of benefit is mixed. It should therefore not be presented as a universally effective treatment.

PRP for Knee Osteoarthritis

Platelet-rich plasma, or PRP, has been investigated in numerous randomized controlled trials for symptomatic knee osteoarthritis.

Systematic review and meta analysis research indicates that PRP may reduce pain and improve physical function in selected patients, particularly in earlier or moderate knee OA.

A review and meta analysis comparing PRP with other injection treatments has also reported symptomatic benefits in selected patient groups.

However, randomized clinical trial results vary according to PRP preparation, treatment protocol, disease stage and patient characteristics.

PRP should therefore be regarded as a possible symptom-modifying treatment rather than a method that reliably restores articular cartilage.

It should not be claimed that PRP reverses osteoarthritis cartilage degeneration.

Autologous Adipose Tissue-Based Treatment

Autologous adipose tissue-based treatment represents another selected regenerative approach.

Prof. Grifka has worked with adipose-derived approaches in selected patients as part of strategies intended to preserve the natural joint and potentially postpone prosthetic surgery where clinically reasonable.

Randomized controlled trials have reported improvements in symptoms and physical function in some selected patient populations.

Systematic review and meta analysis evidence nevertheless shows that the long-term evidence for structural regeneration remains heterogeneous.

These treatments should therefore not be presented as a guaranteed method for restoring osteoarthritis cartilage or as a universal alternative to surgery.

The indication depends on the affected joint, disease stage, symptoms and individual clinical findings.

When Is Joint-Preserving Surgery an Option?

Joint replacement is not automatically the next step when conservative treatment becomes insufficient.

In selected patients, joint-preserving surgery can address mechanical factors contributing to osteoarthritis.

For knee osteoarthritis associated with significant malalignment, corrective osteotomy may redistribute load away from the more damaged part of the knee joint.

This can be particularly relevant in medial knee osteoarthritis with varus alignment.

Whether this approach is appropriate depends on age, activity level, degree and distribution of knee osteoarthritis, articular cartilage status, alignment, symptoms and patient expectations.

Arthroscopic surgery, by contrast, is not a general treatment for established knee arthritis or knee osteoarthritis. It should be reserved for selected mechanical indications where a specific problem is likely to be contributing to symptoms.

The objective of joint-preserving treatment is to maintain the patient’s natural joint where the underlying problem can still be addressed appropriately.

When Is Knee or Hip Joint Replacement Appropriate?

Replacement surgery can become a highly effective treatment when serious osteoarthritis causes persistent pain and significant loss of function despite appropriate conservative and, where applicable, joint-preserving treatment.

Knee replacement or hip replacement may be considered when:

severe symptoms substantially affect everyday life
chronic pain interferes with activity or sleep
mobility and independence are significantly impaired
appropriate non-surgical treatments no longer provide sufficient relief
examination and imaging findings correspond to the clinical symptoms
the patient’s health and personal goals support surgery

For advanced osteoarthritis of the knee, a total knee replacement should address a significant clinical problem – not simply a radiographic finding.

The same principle applies to hip osteoarthritis.

Prehabilitation and Fast-Track Treatment

If an artificial joint becomes necessary, Prof. Grifka places particular emphasis on preparing the patient before surgery and organizing the entire treatment pathway around recovery.

This includes the principles of prehabilitation and Fast-Track orthopedics.

Important elements can include targeted exercise before surgery, optimization of relevant medical risk factors, coordinated perioperative treatment, effective pain management, early mobilization and structured rehabilitation.

The underlying philosophy remains consistent:

Preserve the natural joint where appropriate. If surgery becomes necessary, prepare the patient properly and create the conditions for the best possible recovery.

Prof. Joachim Grifka’s Approach to Osteoarthritis

Prof. Joachim Grifka combines extensive experience in conservative orthopedics, training therapy, joint-preserving procedures and surgical treatment of advanced osteoarthritis.

His approach is based on an individualized treatment pathway rather than a predetermined progression toward surgery.

Treat the Patient, Not the X-Ray

Osteoarthritis diagnosed on imaging must always be interpreted together with symptoms, physical function and clinical examination.

Use Conservative Treatment Where Appropriate

Training therapy, lifestyle changes, medication and selected injection treatments may help reduce osteoarthritis pain and maintain mobility.

Preserve the Natural Joint Where Medically Reasonable

Mechanical causes and joint-preserving options should be considered in suitable patients before prosthetic replacement.

Recommend Surgery When the Indication Is Clear

When osteoarthritis causes substantial pain and functional limitation despite appropriate treatment, surgical replacement may be the correct solution.

Prepare Patients Properly for Surgery

If knee replacement or hip replacement becomes necessary, prehabilitation and Fast-Track principles can be used to optimize the treatment pathway before and after the procedure.

For Prof. Grifka, conservative treatment and surgery are therefore not competing philosophies. They are different elements of the same individualized treatment strategy.

Orthopedic Consultation with Prof. Joachim Grifka in Regensburg

If you are looking for an individual assessment of osteoarthritis, Prof. Grifka can evaluate your symptoms, existing diagnostic findings and previous treatments and discuss the appropriate next steps with you.

Frequently Asked Questions About Osteoarthritis

Can You Live a Long Life With Osteoarthritis?

Yes. Osteoarthritis itself does not usually determine life expectancy. Its primary effects are on joint pain, mobility and quality of life.

Maintaining physical activity, managing symptoms appropriately and treating relevant accompanying conditions are important, particularly in older adults.

What Is the Best Treatment for Osteoarthritis?

There is no single best treatment for every patient.

The appropriate way to treat osteoarthritis depends on the affected joint, disease stage, osteoarthritis symptoms, functional limitation and individual goals.

Treatment often begins with conservative measures such as exercise, lifestyle changes and symptom control. Joint-preserving treatment or replacement surgery may be considered when medically appropriate.

What Are Five Symptoms of Osteoarthritis?

Five common osteoarthritis symptoms are activity-related joint pain, stiffness after rest, reduced range of motion, swelling or recurrent irritation, and functional limitation during everyday activities.

Some patients also experience crepitus, a grinding or grating sensation during joint movement.

Significant osteoarthritis may additionally cause chronic pain, rest pain or night pain.

How Can You Slow Down Osteoarthritis in the Knees?

No treatment can guarantee that osteoarthritis progression with knee pain will stop.

However, maintaining quadriceps and other muscle strength, staying active with joint-compatible exercise, managing body weight where appropriate and addressing abnormal mechanical loading can support knee function and may reduce modifiable factors associated with progression.

Persistent knee pain should be assessed so that the cause and stage of knee osteoarthritis can be identified.

How Is Osteoarthritis Diagnosed?

Osteoarthritis is diagnosed primarily through medical history and physical examination, supported by X-rays when appropriate.

X-rays may show joint space narrowing, osteophytes and changes in the subchondral bone.

MRI may provide additional information in selected cases. Blood tests can help exclude rheumatoid arthritis and other inflammatory or rheumatic diseases but do not diagnose osteoarthritis itself.

Do X-Rays Always Show How Severe Osteoarthritis Is?

No.

Radiographic signs of arthritis and symptoms do not always correspond closely. Some patients have pronounced imaging findings with relatively minor symptoms, while others experience substantial osteoarthritis pain despite more modest structural changes.

Treatment decisions should therefore be based on a comprehensive clinical assessment.

Can Osteoarthritis Be Treated Without Surgery?

Yes.

Many patients with primary osteoarthritis or secondary osteoarthritis can be treated conservatively for extended periods.

Exercise therapy, lifestyle changes, medication and selected injection treatments can reduce pain and improve mobility in suitable patients.

Whether surgery is necessary depends on the affected joint, disease stage, severity of symptoms and response to previous treatment.

Does Exercise Make Osteoarthritis Worse?

Appropriate exercise does not generally make osteoarthritis worse.

Targeted strengthening, mobility work and joint-compatible endurance activity can reduce pain, relieve stiffness and improve physical function.

Exercise should be adapted to the individual patient, particularly when symptomatic knee osteoarthritis or advanced hip osteoarthritis is present.

What Is the Difference Between Osteoarthritis and Rheumatoid Arthritis?

Osteoarthritis is primarily a degenerative joint disease involving articular cartilage, subchondral bone and other joint tissues.

Rheumatoid arthritis is a systemic autoimmune inflammatory arthritis in which the immune system attacks joint tissue.

Rheumatoid arthritis therefore requires a different diagnostic and medical treatment strategy.

Can PRP Help Knee Osteoarthritis?

PRP may reduce pain and improve physical function in selected patients with knee osteoarthritis.

Randomized controlled trials and systematic review and meta analysis research provide the strongest support for symptomatic improvement in selected patients with early or moderate knee OA.

PRP should not be presented as a treatment that reliably regenerates articular cartilage.

What Role Can Adipose Tissue-Based Treatment Play?

Autologous adipose tissue-based procedures may be considered for selected patients as part of an individualized treatment strategy.

Randomized controlled trials and systematic review and meta analysis research suggest possible symptomatic improvements, but long-term evidence for structural cartilage regeneration remains uncertain.

The indication should therefore be determined individually according to the affected joint, osteoarthritis stage, symptoms and treatment goals.

Discuss Your Osteoarthritis Treatment Options with Prof. Grifka

If osteoarthritis is limiting your mobility or you would like to understand whether conservative treatment, a joint-preserving approach or surgery is appropriate, an individual orthopedic assessment can provide clarity.

Prof. Joachim Grifka offers orthopedic consultations in Regensburg.

Prof. Joachim Grifka – Specialist in Orthopedics | Osteoarthritis | Joint Preservation | Hip & Knee Replacement | Training Therapy