Naslov
Transient osteoporosis as a cause of knee pain in pregnancy – a case report

Autori
Ferenc, Thomas ; Bratić, Tomica ; Perić, Vitorio ; Matković, Andro ; Kavur, Lovro ; Vidjak, Vinko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
14th Croatian-Slovenian-Hungarian-Slovakian Congress of young radiologists

Mjesto i datum
Vodice, Hrvatska, 05.05.2023. - 07.05.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
transient osteoporosis ; knee ; pregnancy

Sažetak
Transient osteoporosis (TO) is a self-limiting bone disorder with an unknown etiology, typically manifesting in the third trimester of pregnancy. The most affected joint is the hip, rarely involving the knee, ankle, and foot. There are only 5 reported cases of TO in pregnancy involving the knee. A 38-year-old female patient in the third trimester of pregnancy presented with an 8- week history of progressive right knee pain. The present pregnancy was uneventful, besides one episode of mild COVID-19. The patient reported no previous trauma, joint disorders, or corticosteroid use. Her family history was negative for rheumatologic diseases. Clinical examination demonstrated palpatory tenderness and swelling over the lateral femoral condyle and tibia with a limited range of motion (ROM). Laboratory parameters were within normal range apart from the D-dimer level, therefore low- molecular-weight heparin (LMWH) was administered. LMWH was discontinued after no ultrasound (US) signs of deep vein thrombosis. A knee US demonstrated minor intraarticular effusion. Following childbirth, the patient was referred to a knee X-ray that displayed patchy bone demineralization of the lateral femoral condyle and tibia, without any signs of fracture, joint space reduction, or erosions. The right knee magnetic resonance imaging (MRI) showed extensive bone edema of the lateral femoral condyle, minor bone edema of the lateral tibia condyle, and suprapatellar knee effusion, without any signs of meniscal, cartilage, or cruciate ligament damage. The diagnosis of TO was suspected and the treatment was conservative. The patient reported complete pain resolution after 3 months, and on the follow-up MRI, earlier findings also resolved. TO of the knee in pregnant women mainly occurs over the age of 30 with the onset of symptoms in the third trimester of pregnancy. Typical clinical findings are progressive knee pain with limited ROM. MRI is the mainstay for the diagnosis. Conservative treatment is advised, and the resolution of symptoms is expected after several months.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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