Stress fractures due to overuse of the elbow

What is an elbow stress fracture?

A stress fracture is a subtle crack in bone caused by repeated microtraumas - not a single, acute trauma. At the elbow, stress fractures typically occur at the olecranon (tip of the ulna), more rarely at the radial head or in the area of ​​the humeral condyles. The bone tries to adapt to the load (remodeling). However, if the load is too frequent, too intense or the regeneration time is too short, the degradation predominates - a fatigue crack can occur.

• Typically affected: throwing and hitting athletes (baseball, handball, javelin, tennis), gymnasts, weight training, repetitive supporting loads.
• Pain often begins gradually, initially depending on the load, later pain at rest is possible.
• Most stress fractures heal with consistent weight loss and gradual rehabilitation.

Anatomy and biomechanical background

The elbow is a complex joint consisting of the humerus (upper arm bone), ulna (ulna) and radius (spoke). When throwing, high valgus and extension forces act, especially in the late backswing and acceleration phase. The olecranon absorbs recurring tensile and shear forces. Tensile forces also act on the ulnar collateral ligament at the medial elbow; Compressing forces are transmitted radially via the radius head.

• Olecranon: most common site of an elbow stress fracture (valgus extension overload).
• Radial head: rare stress fractures due to repetitive compression.
• Humeral condyles: particularly vulnerable in adolescents with open growth plates (special entities).

Typical symptoms

• Stress-dependent, localized pain at the back of the elbow (olecranon) or on the side (radial head/condyles).
• Pressure pain over the affected bone structure.
• Occasionally slight swelling or feeling of warmth.
• Increasing discomfort when throwing/hitting, supporting or push-ups.
• Late pain at rest or at night if irritation persists.
• Loss of performance, uncertainty during final extension, “blocking feeling” during valgus extension overload.

Causes and risk factors

Stress fractures are multifactorial. High, repetitive loads usually result in a temporarily reduced bone adaptability. In addition to training errors, individual factors play a role.

• Rapid increase in training volume or intensity; insufficient regeneration.
• Technical errors, changes in material/equipment (e.g. bat, throwing technique).
• Previous elbow problems, limited mobility (especially extension).
• Bone health: Vitamin D deficiency, energy/calcium deficiency, eating disorders; RED-S/relative energy deficits, female athlete triad.
• Adolescents with open growth plates (higher vulnerability).
• Systemic factors: low bone density, certain medications (e.g. long-term cortisone).

Diagnostics: This is how the stress fracture is recognized

The diagnosis is based on anamnesis (stress profile), physical examination and imaging. A conventional x-ray image is often unremarkable, especially in the early stages.

• Differential diagnoses: epicondylopathies, bursitis, osteochondrosis dissecans, ulnar nerve impingement, loose joint bodies, acute fractures.

Conservative therapy: the standard

Most stress fractures of the elbow heal with consistent unloading, time-appropriate immobilization and structured rehabilitation. The goal is freedom from pain, restoration of full mobility and a gradual, sport-specific increase in load.

• Relative rest/stress reduction: initially pause throwing, hitting and supporting stress (typically 6-8, sometimes 10-12 weeks depending on the stage).
• Immobilization/splint: makes sense in the short term, especially a. in olecranon stress fracture with end-extension pain.
• Pain management: cooling, if necessary short-term non-steroidal anti-inflammatory drugs (NSAIDs) - as agreed by a doctor; no cortisone injections into fracture areas.
• Physiotherapy: mobility (especially pain-free extension), soft tissue balance, technique training; early isometric, later eccentric and coordination strengthening of the arm, shoulder blade and trunk muscles.
• Load control: individual return-to-throw/return-to-hit plan with gradual increase in volume and intensity; Symptom monitoring.
• Bone health: nutritional check (calcium, protein), vitamin D status; Optimize sleep and regeneration.

Adjunctive procedures may be considered in individual cases if healing appears delayed. However, evidence is limited and use should be carefully considered.

• Bone stimulation procedures (e.g. low-intensity ultrasound): inconsistent data; not routine.
• Shockwave/PRP: not recommended as standard for elbow stress fractures.

Surgical therapy: rarely necessary

Surgery is considered if conservative measures do not bring about healing, if there is a complete fracture line with impending dislocation, or if there is a false joint formation (non-union). The aim is to achieve stable bony development and restore resilience.

• Olecranon: screw osteosynthesis or tension banding depending on the type of fracture.
• Radial head/humeral condyles: individual osteosynthesis procedures after preoperative imaging.
• Accompanying pathologies (e.g. free joint bodies, capsular/soft tissue conflicts) can be treated arthroscopically/openly.

Risks such as infection, bleeding, nerve irritation or lack of bony healing are discussed in detail in advance. The operation is followed by structured rehabilitation with timely mobilization and gradual increase in load.

Healing process and rehabilitation

Times are guidelines. The actual course depends on the stage of the stress fracture, individual factors and the consistent implementation of the rehabilitation plan.

Prevention: manage stress wisely

• Training periodization: gradual increases, planned regeneration phases.
• Technique optimization: train throwing/hitting technique and shoulder blade control.
• Stress documentation: regularly record volume, intensity and pain scales.
• Strength-mobility-coordination: balanced program for arm, shoulder and torso.
• Nutrition & bone health: adequate energy intake, calcium, vitamin D; if necessary screening.
• Adolescents: protection of open growth plates, limited litter numbers, sporting variety.

Special features for children and young people

As the skeleton grows, loads often shift to the apophyses and growth plates. Pain on the medial elbow, olecranon or lateral side should be taken seriously and clarified early.

• Consistent protection has high priority; early stopping of provocative activities.
• Rapid imaging if symptoms persist, as X-rays may be unremarkable in the early stages.
• No cortisone on the growing skeleton; conservative measures in the foreground.
• Close follow-up checks before returning to competition.

When should you see a doctor?

• Increasing elbow pain despite rest for > 1–2 weeks.
• Pain at night or at rest, significant swelling or restricted movement.
• Cracking/acute pain when thrown/hit with immediate loss of function.
• Neurological symptoms (tingling, numbness, loss of strength) or feeling of blockage.
• Recurrent symptoms after a previous stress fracture.

forecast

With early diagnosis and consistent conservative treatment, the prognosis is usually good. Delayed diagnosis, continued overexertion or accompanying technical/stress problems increase the risk of delayed healing or renewed symptoms. Careful return planning reduces relapse rates.

What you can do yourself

• Identify stress and pause temporarily (especially throwing/hitting/supporting).
• Cool if necessary, avoid pain-provoking movements.
• Training alternatives: cardiovascular training without elbow compression, leg/core strength.
• Keep a pain and stress diary; Document gradual increases.
• Get enough sleep, pay attention to a balanced diet; Have vitamin D status checked if necessary.