Introduction: Greater trochanteric pain syndrome (GTPS) denotes several disorders around the lateral aspect of the hip. GTPS may develop in native hips as well as after total hip arthroplasty (THA). It is estimated that 5-12% of patients suffer from GTPS after primary THA. Despite the prevalence of GTPS, it is hard to diagnose and manage it properly. The VISA-G questionnaire was developed as a patient-reported outcome measurement tool for evaluation of GTPS. The aims of the present study were to evaluate the reliability of the VISA-G Slovenian and its construct and criterion validity.
Methods: After the finalization of the VISA-G Slovenian translation procedure, 59 patients with a painful trochanteric region planned for THA filled in the VISA-G Slovenian at the hospital on two occasions 5-7 days apart. On the first occasion, each patient also filled in the EQ-5D-5L questionnaire and the Harris Hip Score (HHS) was completed by the physiotherapist.
Results: The VISA-G Slovenian was found to have a test-retest reliability of ICC 0.977; 95% CI [0.96; 0.986]. Internal consistency was assessed with Cronbach's alpha 0.79. The statistically significant, but low, correlation between the HHS and VISA-G (r=0.48) was obtained. Concurrent validity of the VISA-G with the EQ-5D-5L showed moderate to strong correlations in Mobility, Self-Care, Usual Activities, Pain, EQ-5D-5L Index and EQ VAS, but low correlation in the Anxiety subscale. No floor and ceiling effect were obtained.
Conclusions: The VISA-G Slovenian has excellent psychometric properties needed to measure gluteal tendinopathy-related disability of patients in Slovenia. Thus, we recommend using the questionnaire for measuring trochanteric hip pain.
Uvod: Bolečinski sindrom v predelu velikega trohantra (angl. greater trochanteric pain syndrome, GTPS) opredeljuje številne motnje na lateralni strani kolka. GTPS se lahko razvije tako pri nativnem kolku kot sklepu z vstavljeno totalno endoprotezo kolka (TPC). Po ocenah ima 5−12 % pacientov po primarni TPC težave z GTPS. Vprašalnik VISA-G je bil razvit kot orodje za vrednotenje GTPS. Namen naše raziskave je bil opredeliti zanesljivost, zgradbeno ter kriterijsko veljavnost slovenske različice vprašalnika VISA-G.
Metode: Po zaključku standardne procedure prevoda VISA-G v slovenski jezik, smo v raziskavo vključili 59 pacientov z bolečinami v pertohanternem predelu z znano artrozo kolka, ki so bili predvideni za vstavitev TPC. Vsak pacient je slovensko različico vprašalnika VISA-G izpolnil v bolnišnici dvakrat v razmaku 5−7 dni. Ob prvem izpolnjevanju vprašalnika je vsak pacient izpolnil tudi vprašalnik EQ-5D-5L, fizioterapevt pa je ob tem izpolnil kolčni vprašalnik po Harrisu (angl. Harris Hip Score, HHS).
Rezultati: Za slovensko različico vprašalnika VISA-G smo ugotovili zanesljivost s področja ponovljivosti ICC 0,977; 95 % CI [0,960; 0,986]. Notranja skladnost vprašalnika je znašala 0,79, ocenjeno s Cronbach alfa. Statistično značilna, vendar nizka korelacija, je bila opredeljena med HHS in VISA-G (r = 0,48). Konkurentna veljavnost VISA-G in EQ- 5D 5L je pokazala srednjo do močno korelacijo v mobilnosti, zmožnosti skrbi zase, izvajanju dnevnih aktivnosti, bolečini, indeksom EQ-5D-5L ter EQ-VAS, vendar nizko korelacijo z anksioznostjo. Učinka stropa in tal nismo zaznali.
Zaključki: Slovenska različica vprašalnika VISA-G ima odlične psihometrične lastnosti, potrebne za vrednotenje težav, povezanih z GTPS, pri pacientih z obrabo kolka v Sloveniji. Na podlagi naših ugotovitev priporočamo uporabo vprašalnika za vrednotenje trohanterne bolečine v predelu kolka.
Keywords: Greater trochanteric pain syndrome; Hips; Outcomes; Psychometric properties; Tendinopathy.
© 2023 Samo ROŠKAR et al., published by Sciendo.