Humeral lateral epicondylitis complicated by hydroxyapatite dihydrite deposition disease: a case report.
OBJECTIVE
The aim of this case report is to differentiate the recovery timeline expected for patients with simple lateral epicondylitis from an abnormal recovery period, in which case an underlying condition should be suspected.


METHODS
A 49-year-old woman presented to a chiropractic clinic with posterolateral right elbow pain. The history included chronic recurrent lateral elbow pain, followed by a traumatic event leading to sustained pain and disability.


RESULTS
Following a trial of conservative therapy including activity restrictions, soft tissue therapy, joint mobilizations, and therapeutic ultrasonography that led to no significant improvement, the patient was referred for diagnostic imaging that revealed hydroxyapatite dihydrite deposition disease.


CONCLUSIONS
This report describes a case for which lateral epicondylitis symptoms failed to resolve because of an underlying condition (hydroxyapatite dihydrite deposition disease). This case emphasizes that primary care practitioners treating lateral epicondylitis should consider referral for further investigations when positive results are not achieved.
Clinical Sciences Resident, Canadian Memorial Chiropractic College, Toronto, Ontario, Canada.
Andrée-Anne
AA
Marchand
Full-time Professor, Département de chiropratique, Université du Québec à Trois-Rivières (UQTR), Trois-Rivières, Québec, Canada.
Julie
J
O'Shaughnessy
Full-time Professor, Département des Sciences de l'activité physique, Université du Québec à Trois-Rivières (UQTR), Trois-Rivières, Québec, Canada.
Martin
M
Descarreaux
Chiropractic; Chronic pain; Prognosis; Tennis elbow; Therapy