The Ten-Year Pattern of Hip Diseases in Singapore

Abstract

Purpose.

To review patients with hip diseases undergoing total hip arthroplasty (THA) during 2 different periods.

Methods.

During the periods 1994 to 1996 and 2004 to 2006, 12 men and 28 women (mean age, 57 years) and 55 men and 78 women (mean age, 62 years) underwent THA for hip diseases, respectively. The aetiologies of the hip diseases were classified. Pre-and post-operative radiographs of the pelvis and hip were reviewed. The femoral head-tilt ratio (FHR) was measured.

Results.

The number of patients undergoing THA increased 3-fold over 10 years; the proportion of different aetiologies was similar. Respectively, the most common aetiologies were acetabular dysplasia (33% vs. 40%) and avascular necrosis (33% vs. 42%). Only <5% of the patients had advanced osteoarthritis with no demonstrable cause, most of whom being Caucasians. The overall mean FHR was 1.07. There was no significant difference between male and female subjects.

Conclusion.

The pattern of hip diseases in Singapore remained similar over the 10-year interval, but the number of patients undergoing THA had increased 3-fold.

Keywords

arthroplasty,replacement,hip Asian continental ancestry group osteoarthritis,hip

References

Gunn

. Don't sit—squat! Clin Orthop Relat Res 1974;103:104–5.

Hoaglund

Yau

Wong

. Osteoarthritis of the hip and other joints in Southern Chinese in Hong Kong. J Bone Joint Surg Am 1973;55:545–57.

Hoaglund

Shiba

Newberg

Leung

. Diseases of the hip. A comparative study of Japanese Oriental and American white patients. J Bone Joint Surg Am 1985;67:1376–83.

Solomon

. Patterns of osteoarthritis of the hip. J Bone Joint Surg Br 1976;58:176–83.

Mukhopadhaya

Barooah

, Osteoarthritis of hip in Indians: An anatomical and clinical study. Indian J Orthop 1967;1:55–62.

Das De

Bose

Balasubramaniam

Goh

Teng

. Surface morphology of Asian cadaveric hips. J Bone Joint Surg Br 1985;67:225–8.

Leunig

Beaule

Ganz

. The concept of femoroacetabular impingement: Current status and future perspectives. Clin Orthop Relat Res 2009;467:616–22.

Takeyama

Naito

Shiramizu

Kiyama

. Prevalence of femoroacetabular impingement in Asian patients with osteoarthritis of the hip. Int Orthop 2009;33:1229–32.

Murray

. The aetiology of primary osteoarthritis of the hip. Br J Radiol 1965;38:810–24.

10.

Ganz

Leunig

Leunig-Ganz

Harris

. The etiology of osteoarthritis of the hip: An integrated mechanical concept. Clin Orthop Relat Res 2008;466:264–72.

11.

Harris

. Etiology of osteoarthritis of the hip. Clin Orthop Relat Res 1986;213:20–33.

12.

Takaoka

Sakamaki

Yanagimoto

Matsumoto

Sugano

Saito

. The adult hip. In: Callaghan

, editor. The Asian Hip 1105–23.

13.

Das De

. Morphological and biomechanical studies in Asian hips, a cadaveric and clinical study in relation to osteoarthritis. Dissertation for the degree of doctor of medicine, National University of Singapore, 1990.