Psoriatic arthritis (PsA) is a chronic inflammatory disease of the musculoskeletal system that develops in approximately 25-30% of patients with psoriasis [1, 5]. It is a systemic pathology affecting not only the skin, but also the peripheral joints, spine, and tendon insertion sites [3]. Timely detection of symptoms plays a key role in preventing irreversible changes [1].
Main Symptoms of Psoriatic Arthritis
The clinical presentation of the disease varies. Most often, joint lesions develop several years after the appearance of skin plaques, but symptoms can occur simultaneously or even precede dermatological manifestations [5].
- Pain, swelling, and stiffness in the joints of the hands, feet, knees, or spine.
- Enthesitis — inflammation at the sites where tendons and ligaments attach to bones, accompanied by tenderness upon palpation [1].
- Dactylitis ("sausage-digit" inflammation) — uniform swelling of an entire finger or toe, distinct from neighboring digits [1].
- Systemic manifestations, including chronic fatigue and sleep disturbances [3].
Diagnosis and the Role of the Interdisciplinary Approach
Since there are no specific laboratory tests to diagnose PsA, physicians rely on clinical manifestations and instrumental methods [1, 5]. Dermatologists are the first to encounter patients with skin manifestations, making their regular monitoring of joint symptoms critically important [1, 2]. Ultrasound examination (US) and magnetic resonance imaging (MRI) are actively used to clarify the diagnosis in cases of enthesitis and dactylitis [1]. Close cooperation between dermatologists and rheumatologists makes it possible to detect the pathology at an early stage [4, 5].
Modern Treatment Methods
Delayed treatment of psoriatic arthritis leads to progressive bone and joint destruction, disability, and a reduced quality of life [1, 4]. Therapy is long-term and aimed at suppressing inflammation and halting disease progression [2].
- Immunosuppressive and disease-modifying antirheumatic drugs (DMARDs) to control systemic inflammation activity [2].
- The use of biologic agents targeted at blocking key pro-inflammatory cytokines.
- An integrated approach that takes into account comorbid conditions (cardiovascular disease, obesity, metabolic syndrome) [3].
Accounting for Comorbidities
PsA is viewed not as an isolated joint involvement, but as a systemic disease associated with a high burden of comorbidities [3]. Patients frequently present with diabetes mellitus, inflammatory bowel disease, cardiovascular disorders, and mood disorders [3]. Comprehensive patient management requires the control of all concomitant risk factors to improve long-term outcomes [3].
Sources
- 1. Enthesitis and Dactylitis in Psoriatic Disease: A Guide for Dermatologists
- 2. Psoriatic arthritis for the dermatologist
- 3. Managing comorbidities in psoriatic arthritis: A state-of-the-art approach to integrated care
- 4. The rheumatology/dermatology collaboration
- 5. Management of psoriatic arthritis: should the interaction between dermatologists and rheumatologists in clinical practice be intensified?
Disclaimer: The information provided in this article is for informational purposes only and does not replace an in-person consultation with a rheumatologist or dermatologist.