Research aim: The aim of this research is to compare the success and the difference of rehabilitation success between ”Institute for Physical Medicine and Rehabilitation with Rheumatology of KBC Split and Specials Hospitals for Medical Rehabilitation “Biokovka” and “Kalos”. Subjects and methods: The research was conducted in KBC Split at the “Institute for Physical Medicine and Rehabilitation with Rheumatology” and in the Special Hospitals for Medical Rehabilitation “Biokovka” in Makarska and “Kalos” in Vela Luka in the period from 1.6.2019. to 1.5.2020. The study included 66 subjects. Input parameters used for this study were degenerative hip joint changes and inpatients, patients with hip joint trauma and outpatient patients were excluded. For the evaluation of patients were used: data from medical records, goniometry, manual muscle test (MMT), VAS pain scale and functional questionnaire Haris hip score (HHS). Results: 65% of women and 35% of men were included in the research. Regarding goniometry, we notice an increase in the values of all monitored parameters, with a statistically significant difference observed in active thigh flexion with flexed lower leg, active thigh flexion with extended lower leg and active thigh abduction. There was a statistically significant change of mean value in the total Haris hip score after rehabilitation in both groups, provided that HHS after the end of the therapy by 14 points lower in “Group 1” compared to “Group 2”, with difference between the groups being statistically significant (p<0.001). We can conclude that the greatest influence on the change of the HHS value has the particle “pain” and the smallest influence has the particle “enter public transport”. Upon completion of therapy VAS pain scale was statistically significantly and negatively associated with active and passive thigh flexion with extended lower leg, abduction, while the association with manual muscle test was determined with flexion and abduction, and the association with extension was not statistically significant (rho= -0,18; p=0.159). The mean value of all observed variables of the manual muscle test at the beginning of the therapy is 1 point higher in “Group 2” compared to “Group 1”. Upon therapy completion there was an increase in the strength of all tested muscles, except thigh abduction in “Group 1”, with the test finding the statistically significant difference between the groups in flexion and abduction of the thigh (p<0.001). Conclusions: The implantation of a hip endoprosthesis has proven to be the best solution for people with hip osteoarthritis whose quality of life is so reduced that conservative treatment methods no longer help to reduce pain and improve daily activities. From the conducted research we conclude that the subjects who later began inpatient treatment at initial measurement had better manual muscle test results (MMT) and Harris hip score (HHS), which is expected given the time interval from surgery. We also notice that the overall increase in functionality measured by the Harris hip score shows a greater shift in the first group of subjects. Based on obtained results, the given hypothesis was confirmed, the acute hospital has the same quality rehabilitation as the special hospital.