Therapy of Superolateral Types b) and c) and Medial Osteoarthritis

  • Renato Bombelli


From the section on osteophytes we can understand how in superolateral types b), c), and d2) OA an intertrochanteric osteotomy aimed at provoking a marked valgus of the femoral head stimulates the osteophytes and is therefore indicated. From the information obtained from the follow-up X-rays of patients operated on by valgus-extension osteotomy, we reahze that such an osteotomy works by stretching the ligamentum teres and its synovial membrane and the superior part of the joint capsule and its synovial membrane. This results in a stimulus for building the capital drop and the curtain osteophyte, which increase the WBS of the joint. It also stimulates the hypertrophy of the superior cervical osteophyte and the roof osteophyte. This roof osteophyte, in turn, helps not only to increase the WBS, but also, importantly, to make the WBS horizontal, causing the extruding force to disappear and force Q to reappear. In a word, the roof osteophyte may put a “stopper” on the development of OA (Fig. 173).


Femoral Head Joint Space Great Trochanter Medial Type Ligamentum Teres 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  • Renato Bombelli
    • 1
    • 2
  1. 1.Hospital of Busto ArsizioLegnanoItaly
  2. 2.Clinica OrtopedicaUniversity of MilanLegnanoItaly

Personalised recommendations