Calcium hydroxyapatite deposition disease, also known as CHDD, is commonly known as calcific tendinitis.
Calcium hydroxyapatite deposition disease, also known as CHDD, is commonly known as calcific tendinitis. There have also been other names associated with the same disease including calcium apatite deposition disease (CADD), Hydroxyapatite deposition disease (HADD). It is also sometimes confused with pseudogout, which is calcium pyrophosphate deposition disease (CPDD).
CHDD is a fairly common phenomenon and most cases are associated with the shoulder and rotator cuff. The two most commonly involved rotator cuff muscles are the supraspinatus and infraspinatus. The hip is the second most common and the spine is the third most common area.
Other reports have shown localization the the triceps, common extensor and flexor tendons, hand, wrist, and patellar tendon, among others. It occurs more frequently in women and mostly between the ages of 30-60, although there have been cases in almost all ages. Case Question A 54 year old hairdresser comes to your office complaining of right shoulder pain over the past 3 months that seems to be much worse at night.
Some pain does occur with abduction of her arm while using scissors. She has already been to her primary care provider and minimally improved with NSAIDs. You order a plain x-ray that shows an ill-defined and fluffy deposit along the supraspinatus.
You diagnose her with calcium hydroxyapatite deposition disease. According to this description, which phase of this disease is most likely? Postcalcific Basic calcium phosphate crystals encompass several types of crystals, including carbonate apatite, octacalcium phosphate and whitlockite crystals.
If you are experiencing symptoms that may be related to calcium hydroxyapatite deposition disease, it is important to see a sports medicine physician. Early evaluation and treatment typically lead to better outcomes. Do not ignore pain or symptoms that are limiting your activity.
*This article is for educational purposes only and does not substitute for professional medical advice. Always consult a qualified healthcare provider.*
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