Medial epicondylitis is chronic degeneration of the flexor-pronator tendon on the inside of the elbow — not inflammation, not an acute injury. It is a legitimately tough problem that often lingers for months. Dr. Graham's approach: throw the kitchen sink at it. Cortisone, therapy, PRP, and surgery when needed. But the inside of the elbow has one important neighbor that demands attention before any injection: the ulnar nerve.
You don't have to golf to get golfer's elbow. It is common in manual workers, climbers, baseball players, and anyone who repeatedly grips and flexes the wrist under load.
Understanding the Condition
Golfer's elbow — medial epicondylitis — is chronic degeneration of the flexor-pronator origin (FCO) at the medial epicondyle of the humerus, the bony prominence on the inside of the elbow. Like its lateral counterpart tennis elbow, this is not truly an inflammatory condition. The tissue shows degenerative change — angiofibroblastic dysplasia — rather than inflammatory cells. The name "epicondylitis" is historical and inaccurate. What is happening is tendon breakdown, not inflammation.
The flexor-pronator origin is the common attachment point for the muscles that flex the wrist and pronate the forearm — the flexor carpi radialis, pronator teres, flexor carpi ulnaris, palmaris longus, and flexor digitorum superficialis. Repetitive loading of these muscles — through gripping, throwing, swinging, or sustained manual work — causes microscopic tears that accumulate at the FCO origin faster than the tendon can repair them. The result is medial elbow pain with gripping, wrist flexion, and forearm pronation.
What separates medial epicondylitis from its lateral equivalent is the anatomy of the inside of the elbow. The ulnar nerve passes directly behind the medial epicondyle in the cubital tunnel, lying immediately adjacent to the flexor-pronator origin. This proximity has real consequences — for injection technique, for symptom interpretation, and for surgical planning. In Dr. Graham's experience, every patient with medial elbow pain deserves a careful assessment of ulnar nerve function and stability at every visit.
The FCO (red) degenerates at its origin on the medial epicondyle — the source of medial elbow pain. The ulnar nerve (purple) runs immediately posterior to the epicondyle in the cubital tunnel. In some patients, the nerve is unstable and can sublux anteriorly over the epicondyle (amber dashed arrow).
This proximity means every medial elbow injection requires nerve assessment first — and subluxation changes technique.
The Critical Difference from Tennis Elbow
The medial elbow is more anatomically complex than the lateral elbow. The ulnar nerve passes directly behind the medial epicondyle in a groove called the cubital tunnel — immediately adjacent to the flexor-pronator origin where the injection or PRP needs to go. In most patients, the nerve sits stably in this groove. But in a meaningful subset of patients, the ulnar nerve is unstable: it subluxes — snaps or rolls — over the medial epicondyle when the elbow is flexed.
Dr. Graham assesses ulnar nerve position and stability at every medial elbow visit. This is not a routine checkbox — it directly affects what happens next. A nerve that is stable in its groove can be injected with standard technique. A nerve that subluxes is at risk of being struck by a needle placed at the epicondyle using the standard approach.
When subluxation is present, Dr. Graham modifies the injection technique — placing the needle more proximal or distal to the epicondyle to avoid the nerve's path of movement. The injection can still be performed safely; the anatomy just has to be respected first. This is the kind of clinical detail that separates a thoughtful medial elbow evaluation from a quick shot at the tender spot.
Beyond injection safety, ulnar nerve subluxation is also clinically significant in its own right. A chronically subluxing nerve can become irritated, producing numbness or tingling in the ring and small fingers — symptoms that can be easily attributed to the epicondylitis alone if the nerve is not specifically assessed.
Dr. Graham's Treatment Philosophy
Golfer's elbow responds to a broad spectrum of treatments — and Dr. Graham's philosophy is to offer as many evidence-informed options as possible, in a logical sequence, with the goal of providing as much relief as possible for as long as possible.
Medial epicondylitis is a degenerative tendinopathy — the FCO tendon at the medial epicondyle has broken down at a microscopic level and has not successfully repaired itself. Platelet-rich plasma (PRP) addresses this directly: concentrated growth factors and platelets drawn from the patient's own blood are injected into the degenerative tendon to stimulate the biological repair process that the tendon has failed to complete on its own.
PRP is particularly well-suited to refractory medial epicondylitis — cases where cortisone injection and therapy have provided some but not enough relief, or where the pain has persisted despite multiple rounds of conservative treatment. It is also a strong option for patients who prefer a biologic approach and want to maximize conservative treatment before considering surgery.
The PRP injection for medial epicondylitis is performed with the same ulnar nerve awareness as the cortisone injection — nerve position is assessed before placement, and the technique is modified if subluxation is present. The concentrated platelets are injected precisely at the degenerative FCO origin.
Dr. Graham does not proactively bring up PRP in every consultation, but he is happy to discuss it in detail with any patient who asks. For complete information on the PRP procedure, preparation, and what to expect, see the PRP treatment page.
The ulnar nerve passes immediately behind the medial epicondyle — directly adjacent to the FCO tendon origin. The two conditions share the same anatomic address, and they can occur together. Chronic degeneration and local inflammation at the medial epicondyle can irritate the adjacent ulnar nerve, producing tingling or numbness in the ring and small fingers (ulnar nerve distribution) alongside the lateral forearm pain of epicondylitis.
When a patient presents with medial elbow pain, Dr. Graham assesses for ulnar nerve involvement at every visit: Tinel's sign at the cubital tunnel, sensation in the ring and small fingers, intrinsic muscle strength, and nerve stability with elbow flexion. If the history and exam suggest cubital tunnel syndrome coexisting with medial epicondylitis, nerve conduction studies may be ordered to confirm.
When both conditions are confirmed and the patient proceeds to surgery, Dr. Graham addresses both in the same operative setting — FCO debridement and reattachment for the epicondylitis, and in-situ ulnar nerve decompression or transposition for the cubital tunnel component. This avoids a second procedure and takes advantage of the exposure already required for the epicondylitis surgery.
If you have medial elbow pain and have also noticed tingling or numbness in your ring or small finger — especially with the elbow bent — mention it at your visit. The two conditions together explain the full picture, and treating only the tendon while missing the nerve leads to incomplete relief.
When Conservative Treatment Isn't Enough
Surgery for medial epicondylitis is offered after a genuine trial of conservative treatment — cortisone injection, formal physical therapy, and other modalities including PRP — has not resolved the pain adequately. Dr. Graham does not discourage surgery for patients who are ready. In his experience, the vast majority of patients who proceed to medial epicondylitis surgery achieve meaningful, durable relief.
The surgical technique mirrors what is done on the lateral side: the FCO tendon is detached from the medial epicondyle, the degenerative portion is identified using the Nirschl scratch test and excised, and the healthy tendon is reattached using suture anchors. The key difference on the medial side is the immediate proximity of two nerves that require careful protection throughout the procedure: the ulnar nerve in the cubital tunnel just posterior to the epicondyle, and the medial antebrachial cutaneous nerve (MABC) — a small sensory nerve that crosses the medial elbow in the subcutaneous tissue and is at risk during the skin incision and dissection.
Inadvertent injury to the MABC nerve during medial epicondylitis surgery causes a patch of chronic numbness or painful neuroma on the medial forearm. Dr. Graham identifies and protects the MABC branch during every medial epicondylitis case — a step that requires attention but is not technically complex, and one that prevents a persistent and frustrating complication.
Operative Technique
Medial epicondylitis surgery involves FCO detachment from the medial epicondyle, Nirschl scratch test identification and excision of the degenerative tissue, and suture anchor reattachment of the healthy tendon. The critical element that makes the medial side distinct is deliberate protection of two nerves throughout the procedure: the ulnar nerve posteriorly and the medial antebrachial cutaneous nerve (MABC) in the subcutaneous tissue.
The MABC nerve is a sensory branch that crosses the medial elbow superficially and is easily damaged during the skin incision or retraction if it is not specifically identified. Injury causes a patch of numbness or a painful neuroma on the medial forearm — a complication that is entirely preventable with careful technique. Dr. Graham identifies the MABC branch during every medial epicondylitis case and protects it throughout the dissection.
The ulnar nerve is also visualized and protected throughout the case — particularly if the nerve was found to be subluxing on pre-operative assessment. If cubital tunnel decompression is being performed concurrently, the nerve is addressed through the same exposure before or after the FCO repair.
The MABC nerve crosses the medial elbow in the subcutaneous fat — at risk during skin incision and retraction. Injury produces a painful neuroma or numb patch on the medial forearm that can be more bothersome than the original epicondylitis. Dr. Graham identifies and protects this nerve in every medial epicondylitis case. It is a straightforward protective step that prevents an avoidable complication.
Regional block. Outpatient at Baptist Beaches Hospital or Horizon Surgery Center. No general anesthesia required in most cases.
Incision centered over the medial epicondyle. The medial antebrachial cutaneous nerve is identified in the subcutaneous tissue and protected throughout the case. This step is performed before any deeper dissection.
The ulnar nerve is identified in the cubital tunnel and protected. If concurrent cubital tunnel decompression is planned, the nerve is addressed at this stage. If subluxation was noted pre-operatively, the nerve path is specifically protected during all subsequent dissection.
The flexor-pronator origin is detached from the medial epicondyle. The Nirschl scratch test identifies the degenerative tissue — grayish, friable, fish-flesh appearance distinct from healthy white tendon. The degenerative zone is excised while healthy tendon is preserved.
The FCO is reattached to the medial epicondyle using Arthrex suture anchors — providing robust, stable fixation. The medial epicondyle is lightly decorticated to enhance the healing environment at the reattachment site.
Post-operative splint for 2 weeks. Custom-made orthosis for an additional 4 weeks. Hand therapy begins at 2 weeks. Full recovery: approximately 3 months.
Recovery After Surgery
Recovery from medial epicondylitis surgery follows the same timeline as tennis elbow surgery — structured, predictable, and significantly faster than the months of conservative treatment that preceded it.
Splint protecting the repair. Wound healing. Finger motion not restricted. Wound check at 2 weeks. Ulnar nerve symptoms monitored if decompression was performed concurrently.
Custom-made elbow and wrist orthosis. Hand therapy begins — gentle range of motion, progressive loading of the flexor-pronator musculature, grip strengthening.
Orthosis discontinued. Strengthening advances — eccentric loading, grip and wrist flexion strengthening, return to sport and work-specific activities progressively.
Most patients return to full activity — including manual labor, sport, and throwing — by 3 months. If cubital tunnel surgery was performed concurrently, nerve recovery may take 9–12 months to fully manifest.
"I had inner elbow pain for almost a year. Two cortisone shots from my primary care doctor, no therapy. When I finally came to Dr. Graham, he checked my nerve before anything else — something nobody had done — and explained exactly why my injections hadn't worked. Within three months of surgery I was pain-free."
Common Questions
Questions from patients dealing with medial elbow pain — including the ones who've already tried cortisone somewhere else.