Mid-Term Results of the Metal-on-Metal Total Hip Arthroplasty

When it came into use, meta-metal surfaces, which received immense attention due to their varied advantages, were successfully applied for a while. However, over time, their use decreased because they were associated with some complications that developed due to metal wear. This study aimed to analyze the findings on metal-on-metal surfaces. Metal-on-metal total hip replacement prosthesis applied in our clinic between 2004 and 2008 was retrospectively screened. A total of 90 hips of 77 patients included in the study were evaluated. The average Haris hip score in the mid-term controls was 89.8 ( ±10.9). A revision was performed in six hips for different reasons (6.6%), and the total prosthesis survival rate was 93.3%. Symptomatically, only 2 (2.2 ) patients had pseudotumor and 28 patients (31.1% ) developed stress shielding due to prosthetic design. Similar success was achieved with other surface alternatives in terms of functional results and prosthetic survival in metal-on-metal surfaces in the medium term.