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Journal of Bone and Joint Surgery - British Volume, Vol 87-B, Issue 4, 471-477.
doi: 10.1302/0301-620X.87B4.15522  
Copyright © 2005 by British Editorial Society of Bone and Joint Surgery
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Joint space width in dysplasia of the hip

A CASE-CONTROL STUDY OF 81 ADULTS FOLLOWED FOR TEN YEARS

S. Jacobsen, MD, Orthopaedic Surgeon1; S. Sonne-Holm, MD, Dr Sci, Orthopaedic Surgeon1; K. Søballe, MD, Dr Sci, Orthopaedic Surgeon2; P. Gebuhr, MD, Orthopaedic Surgeon1; and B. Lund, MD, Dr Sci, Orthopaedic Surgeon, Professor3

1 Department of Orthopaedic Surgery, Hvidovre University Hospital of Copenhagen, DK-2650 Hvidovre, Denmark.
2 Department of Orthopaedic Surgery, University Hospital of Aarhus, Aarhus Amtssygehus, DK-8000 Aarhus, Denmark.
3 Department of Orthopaedic Surgery, Rigshospitalet University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.

Correspondence should be sent to Dr S. Jacobsen; e-mail: sjac{at}dadlnet.dk

In a longitudinal case-control study, we followed 81 subjects with dysplasia of the hip and 136 control subjects without dysplasia for ten years assessing radiological evidence of degeneration of the hip at admission and follow-up. There were no cases of subluxation in the group with dysplasia. Neither subjects with dysplasia nor controls had radiological signs of ongoing degenerative disease at admission. The primary radiological discriminator of degeneration of the hip was a change in the minimum joint space width over time. There were no significant differences between these with dysplasia and controls in regard to age, body mass index or occupational exposure to daily repeated lifting at admission.

We found no significant differences in the reduction of the joint space width at follow-up between subjects with dysplasia and the control subjects nor in self-reported pain in the hip. The association of subluxation and/or associated acetabular labral tears with dysplasia of the hip may be a conditional factor for the development of premature osteoarthritis in mildly to moderately dysplastic hips.




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A. Maeyama, M. Naito, S. Moriyama, and I. Yoshimura
Periacetabular osteotomy reduces the dynamic instability of dysplastic hips
J Bone Joint Surg Br, November 1, 2009; 91-B(11): 1438 - 1442.
[Abstract] [Full Text] [PDF]


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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General