[1] It was developed by William H. Harris in 1969 with 30 patients who had suffered a fracture of the acetabulum or a luxation of the hip.
Today, in most cases the version of Haddad et al. is used, where the calculation of the result of the category range of motion has been simplified.
[5] In recent years, (solely subjective) patient reported outcome measurement-tools have been developed such as the WOMAC-Score or the Forgotten Joint Score (FJS).
Another issue with HHS lies in so called ceiling effects, as it does not allow to differentiate between a very good and an excellent result.
[6] However, the HHS still offers a valid and reproducible tool for the results of hip surgery,[7] although comorbidities should be assessed simultaneously, for example with the Charnley-Score.