Cubital Tunnel Syndrome is a condition that involves pressure on the ulnar nerve (also known as the “funny bone” nerve) which can cause numbness or tingling in the ring and little digits, pain in the forearm, and/or weakness in the hand. This known as an Ulnar Neuropathy.
A diagnosis can be made by your specialist Physiotherapist or General Practitioner. Examination is very important to ensure the correct diagnosis made as this diagnosis can present in a similar way to other pathologies around the neck and shoulder area that can cause cubital tunnel syndrome associated symptoms in the hand.
There are a number of causes that lead to an ulnar nerve problem, but mainly it is caused as a result of direct pressure on the nerve causing impingement known as a mechanical factors. Direct trauma or other space-occupying lesions which may compress the ulnar nerve can cause this condition also.
In addition, other co-morbidities such as inflammatory arthritis, anatomical irregularities, metabolic disorders, congenital abnormalities and occupations that require repetitive bending and straightening of the elbow may contribute to cubital tunnel syndrome.
On observation, there may be atrophy (muscle wasting) of the intrinsic muscles of the hand pads, associated with certain aspects known as the hypothenar and thenar eminence. This may often kead to an abnormal claw posture of the 4th and 5th fingers – also known as Bishops deformity.
Depending on the severity and irritability of your symptoms, your specialist Physiotherapist may initially recommend a splint to immobilise the elbow joint to reduce symptom severity. Other forms of management include a specific exercise programme aimed at offloading the mechanical compression of the ulna nerve. Often conservative management is utilised for 8-12 weeks before surgical consideration.
In conjunction with conservative management which your specialist Physiotherapist will prescribe, medical management is often employed to treat symptoms including the associated neuropathic pain and inflammation. If limited progress is made, a corticosteroid injection may be deliberated; particular in those cases where cubital tunnel syndrome is associated with inflammatory arthropathies such as Ankylosing Spondylitis, Rheumatoid Arthritis, Gout and Psoriatic arthritis.
Kooner, S., Cinats, D., Kwong, C., Matthewson, G., & Dhaliwal, G. (2019). Conservative treatment of cubital tunnel syndrome: A systematic review. Orthopedic reviews, 11(2).
Wojewnik, B., & Bindra, R. (2009). Cubital tunnel syndrome–Review of current literature on causes, diagnosis and treatment. Journal of hand and microsurgery, 1(02), 76-81.