Others at risk may include those who have some abnormality in the way their joint surfaces fit together or who have weak leg and thigh muscles, legs of unequal length, or a misalignment of the spine.
Paaugstināts risks ir arī tiem, kam locītavās ir kaut kādi defekti, kam ir vāji kāju muskuļi, nevienāda garuma kājas vai mugurkaula deformācija.