Metal-on-metal dysplasia cup total hip arthroplasty for hip osteoarthritis secondary to developmental dysplasia of the hip.

Abstract

OBJECTIVES:

This study aims to evaluate the clinical and radiological results of metal-on-metal dysplasia cup total hip arthroplasty (THA) for hip osteoarthritis secondary to developmental dysplasia of the hip (DDH).

PATIENTS AND METHODS:

Between May 2009 and October 2011, THA was performed on 27 hips (7 Crowe type II, 9 Crowe type III, 11 Crowe type IV) of 22 patients (2 males, 20 females; mean age 43 years; range 25 to 63 years) with hip osteoarthritis secondary to DDH. All patients were evaluated clinically and radiographically.

RESULTS:

Average follow-up period was 34.2 months (range 24-53 months). While mean Harris hip score (HHS) was 43 (range 30 to 72 points) preoperatively, it was 92 (range 87 to 98 points) at final follow-up. Two patients developed sciatic nerve palsy postoperatively. Recurrent dislocation occurred in one patient one year after the operation. Mean cup inclination was 45.6° (range 42°-51°). Heterotopic ossification developed in eight patients. No patient's acetabular and femoral component migrated or subsided significantly. None of the implants was revised.

CONCLUSION:

Early clinical and radiological results of metal-on-metal dysplasia cup THA in DDH are satisfactory.

• Authors: Mehmet Emre Baki, Alper Timurkaynak, Hafız Aydın, Celal Baki
• Journal: Eklem hastaliklari ve cerrahisi = Joint diseases & related surgery (Eklem Hastalik Cerrahisi) Vol. 25 Issue 3 Pg. 154-7 ( 2014) ISSN: 1309-0313 [Electronic] Turkey
• PMID: 25413460 (Publication Type: Journal Article)

Topics

• Adult
• Arthroplasty, Replacement, Hip (adverse effects, instrumentation)
• Female
• Follow-Up Studies
• Hip Dislocation, Congenital (complications)
• Hip Joint (diagnostic imaging, surgery)
• Humans
• Male
• Metal-on-Metal Joint Prostheses
• Middle Aged
• Ossification, Heterotopic (etiology)
• Osteoarthritis, Hip (etiology, surgery)
• Radiography
• Treatment Outcome