Shoulder joint arthrosis (omarthrosis)

What is shoulder joint arthrosis?

In omarthrosis, the smooth articular cartilage of the head of the upper arm (humeral head) and socket (glenoid) breaks down. The surface loses its ability to slide, inflammation develops in the synovial lining (synovitis), osteophytes (bone attachments), compacted bone under the cartilage (sclerosis) and sometimes fluid accumulation (joint effusion). The joint capsule can thicken and limit mobility.

It is important to differentiate it from osteoarthritis of the acromioclavicular joint (AC joint) as well as capsular inflammation (frozen shoulder) or rotator cuff diseases. Mixed images often exist. Accurate diagnosis is therefore crucial for correct therapy planning.

Typical symptoms

• Deep shoulder pain, initially under stress, later also at rest and at night
• Starting pain after periods of rest, starting pain in the morning
• Crepitation (rubbing/cracking) and “blocking feeling”
• Limited mobility: rotation and abduction painful, hand behind back/head difficult
• Reduced strength and rapid fatigue
• Difficulty sleeping due to shoulder pain, sleeping on my side is hardly possible
• Swelling/effusion formation in inflammatory phases

In contrast to frozen shoulder, the focus of omarthrosis is not only the painful capsular stiffness, but above all the joint-related cartilage wear - often with bony changes.

Causes and risk factors

• Primary (idiopathic) osteoarthritis: age-associated cartilage wear without clear triggers
• Posttraumatic: after fractures, dislocations or repeated microtraumas
• Consequence of instability: arthropathy after repeated dislocations (e.g. Bankart/Hill-Sachs constellations)
• Rotator cuff insufficiency (cuff tear arthropathy): Imbalance and altered joint mechanics
• Inflammatory causes: e.g. B. Rheumatism, crystal arthropathies
• Circulatory disorders of the humeral head (avascular necrosis)
• Occupation/overhead strain and sports with repetitive movements
• General factors: smoking, metabolic disorders; rarely family disposition

Diagnostics in practice

First of all, the focus is on the anamnesis and physical examination: character of pain, stress profile, previous illnesses and previous operations. We actively and passively check mobility (abduction, flexion, internal/external rotation), pain on palpation and function of the rotator cuff as well as scapular control.

• X-ray: Standard in at least two planes including axillary/outlet image to assess joint space, osteophytes, sclerosis, cysts and axial relationships
• Ultrasound: Evidence of effusions, biceps tendon or rotator cuff findings
• MRI: in case of unclear diagnosis, preoperative planning or suspicion of major soft tissue damage
• Laboratory/joint puncture: only if an inflammatory or infectious cause is suspected

Differential diagnoses such as AC joint osteoarthritis, SLAP lesion, frozen shoulder, biceps tendon disease or cervical nerve root irritation are specifically differentiated.

Stages and course

Omarthrosis usually progresses gradually. Early stages show preserved joint space with soft symptoms; in middle stages there are osteophytes and increased sclerosis; In advanced stages, the joint space may be largely eliminated, with deformation of the humeral head and socket. Pain intensity and loss of function do not always correlate with the x-ray image.

The process is individual. Many patients benefit from conservative measures in the long term and do not require surgery. The aim is to reduce pain, calm inflammation and stabilize mobility as well as shoulder blade and cuff function.

Conservative treatment – ​​our focus

Conservative therapies come first. They are combined individually and adjusted depending on the course. Reliable advice also includes a realistic assessment of the expected effects.

• Education & activity management: joint-friendly strategies, breaks, smart training instead of protective posture
• Physiotherapy: mobilization of the capsule (especially posterior), improvement of gliding movement, strengthening of the rotator cuff and scapula stabilizers, cervical/thoracic spine mobility
• Self-exercises: daily, short routines (e.g. commuting, bar/scarf exercises, rotation exercises), slowly increasing the load
• Pain education: understanding pain mechanisms, stress and sleep management
• Pain therapy: temporary NSAIDs or analgesics; local topical NSAIDs; If necessary, stomach protection and individual consideration
• Physical measures: Warmth in the initial phase, cold in acute irritation; TENS/Fango can supplement
• Ergonomics & everyday life: adjusted handle heights, household aids, sleeping position with side pillows
• Short-term relief: Arm sling only for acute irritation and for very short periods of time to avoid stiffness

In selected cases, we supplement conservative therapy with intra-articular injections. The decision is made based on the findings, level of suffering, comorbidities and individual goals.

Injections: options, evidence and safety

• Cortisone (glucocorticoids): can reduce inflammation and pain in the short term, especially in activated osteoarthritis/synovitis. frequency limited; possible side effects, etc. Increase in blood sugar, skin changes.
• Hyaluronic acid (viscosupplementation): The aim is better lubrication; The study situation is heterogeneous, individual patients report improvement. Benefit-risk is weighed individually.
• PRP (platelet-rich plasma): biological procedure with limited and still inconsistent evidence on the shoulder; off-label, only after informed consent and if there is a suitable indication.

We carry out injections under sterile conditions and, if appropriate, with ultrasound support. Risks (rare) include infection, bleeding, irritation, temporary increase in pain. Repeated cortisone injections should be strictly limited in time and number.

Surgical options – when conservative is not enough

Operations are considered when conservative measures do not produce a satisfactory effect despite sufficient duration and consistency and everyday life is significantly restricted. The decision is always individual and takes into account age, activity level, rotator cuff status and comorbidities.

• Arthroscopic debridement/synovectomy: possible in early stages to relieve symptoms, effect often limited in time.
• Anatomical shoulder prosthesis: for advanced osteoarthritis with an intact cuff.
• Inverted shoulder prosthesis: for relevant rotator cuff insufficiency or complex deformities.
• Hemiarthroplasty/special implants: in selected constellations.

Postoperative rehabilitation and structured aftercare are crucial. We provide neutral advice, explain the opportunities and risks and, if necessary, coordinate specialized further treatment.

Rehabilitation and everyday tips

• Regular, measured exercise instead of immobilization; Maintain mobility in low-pain areas
• Integrate shoulder blade control into everyday life (upright posture, conscious scapula position)
• Heat packs before exercise, cold after exercise if you are irritated
• Sleep: lying on your back with a pillow under your arm; Lie on your side with a pillow between your upper arms
• Exercise frequency: it is better to do short exercises more often (5-10 minutes) than rarely for long periods
• Load control: limit overhead work, plan breaks, keep load close to your body
• Reduce smoking, eat a balanced diet – support general joint health

Prevention: What you can do yourself

• Technique training for overhead sports, sufficient rotator cuff and scapula strengthening
• Early treatment of shoulder injuries to avoid incorrect mechanics
• Workplace ergonomics: frequent position changes, preferring to work at shoulder height
• Compensatory training for the thoracic spine and posture

Differential diagnoses at a glance

Not all shoulder pain is osteoarthritis. Common alternatives or accompanying findings are:

• AC joint arthrosis: pain v. a. at the top/side of the shoulder, discomfort with lateral movements
• Frozen shoulder: painful capsulitis with pronounced stiffness
• Rotator cuff tear/impingement: stress-dependent pain, night pain
• SLAP lesion/biceps tendon pathology: anterior deep pain, snapping
• Consequences of instability (e.g. Bankart/Hill-Sachs lesions)
• Synovitis/irritable effusion without pronounced cartilage damage
• Cervical radiculopathy: Neck pain radiating to the arm

When should I seek medical attention?

• Increasing, nocturnal or persistent pain at rest
• Significantly decreasing mobility or loss of function in everyday life
• Acute trauma with inability to raise arm
• Redness, overheating, fever or general feeling of illness
• Numbness, tingling or paralysis

An early diagnosis helps to provide targeted treatment and avoid consequential damage.

Your visit to our practice in Hamburg

We take time for diagnostics, advice and structured conservative therapy planning. At Dorotheenstrasse 48, 22301 Hamburg, you will receive a clear assessment of your situation and – if appropriate – a graduated treatment strategy with comprehensible goals.