Overview
Overuse injury by repetitive stress to the common flexor tendon at its origin - the medial epicondyle of the humerus
Most often occurs in individuals who engage in repeated wrist flexion, forearm pronation, or gripping tasks
Primary complaint is medial elbow pain
Involves tendinosis (degeneration) of the tendon
Anatomy
Condition occurs at the common flexor tendon at the medial epicondyle of the humerus
Mostly affects the flexor carpi radialis and pronator teres
The tendon becomes irritated from overuse and degenerates
Microscopic tears, fibroblasts, and disorganized collagen are present, making the tendon weak, thickened, and painful
Causes
Eccentric overload of the common flexor tendon
Repetitive strain from activities involving wrist flexion and/or gripping
Such as using tools, throwing sports, or lifting heavy objects
Can be from poor technique or sudden increase in activity that the body is not used to
Symptoms
Pain over the medial elbow, especially at or just distal to the medial epicondyle
Pain is worse with gripping, lifting, and wrist flexion
Tenderness to palpation
Pain reproduced with:
Resisted wrist flexion
Resisted forearm pronation
Resisted wrist extension
Prognosis/Timeline
80% of cases resolve with conservative treatment within 1-3 years
Surgery is very rare but has good outcomes when needed
Patients should stick to therapy regimens to prevent recurrence
Treatment Ideas
Always ask your fieldwork educator or supervising therapist and review any followed protocols before implementing any of the following
Slow eccentric contraction exercises
Wrist stretches
Resisted pronation with emphasis on eccentric contraction
Quiz Questions
1. What is medial epicondylitis commonly caused by?
A. Ligament tear at the medial elbowf
B. Overuse of the common extensor tendon
C. Compression of the radial nerve
D . Overuse of the common flexor tendon
2. Which tendon group is primarily affected in medial epicondylitis?
A. Extensor tendons of the wrist
B. Common flexor tendons of the forearm
C. Biceps tendon
D. Rotator cuff tendons
4. What two muscles are most commonly involved?
A. Extensor carpi radialis and supinator
B. Flexor carpi radialis and pronator teres
C. Brachialis and triceps
D. Flexor digitorum profundus and anconeus
5. Which activity is most likely to contribute to developing medial epicondylitis?
A. Reaching overhead
B. Wrist extension during typing
C. Repetitive wrist flexion or gripping
D. Finger abduction against resistance
6. What is the underlying pathology of medial epicondylitis?
A. Acute inflammation of muscle tissue
B. Tendinosis with microscopic tendon degeneration
C. Nerve compression causing motor loss
D. Ligament sprain and synovitis
7. Pain is most commonly reproduced with:
A. Resisted wrist flexion and forearm pronation elbow extension
B. Resisted elbow extension
C. Passive shoulder internal rotation
D. Passive wrist extension
Quiz Answers
B
B
B
C
B
A
References
Reece, C. L., Li, D., & Susmarski, A. J. (2025). Medial epicondylitis. In StatPearls. StatPearls Publishing. http://www.ncbi.nlm.nih.gov/books/NBK557869/