We describe our modified anterior mini-invasive technique and results obtained in our first consecutive 117 cases in 105 patients. To assess the influence of preoperative Tönnis degenerative stage, cases were divided into group A (Tönnis 0, 32 hips), B (Tönnis 1, 61 hips), and C (Tönnis 2, 24 hips). The clinical score Dexeus combined score (DCS) was used preoperatively, 3 months, 6 months, and every year after operation. At 3-month follow-up, impingement test results improved significantly in 30 hips of group A (94%; p<0.001) and in 58 of group B (95%; p<0.001), whereas in group C, improvement was observed in only 14 cases (58%; p>0.05). No statistical difference was observed at 3-year visit in all groups. Merle d'Aubigné-Postel and WOMAC scores improved significantly in group A (p<0.001) and B (p<0.001) after 1 year and remained unchanged at subsequent yearly follow-ups. For group C, clinical outcomes scores did not show any significant improvement overall (p>0.05). We concluded that anterior mini-invasive technique is an effective method to treat femoroacetabular impingement, and results are highly influenced by preoperative degenerative state, especially in stage Tönnis 2. Therefore, it seems to be a reasonable early surgical treatment in symptomatic patients.

We describe our modified anterior mini-invasive technique and results obtained in our first consecutive 117 cases in 105 patients. To assess the influence of preoperative Tönnis degenerative stage, cases were divided into group A (Tönnis 0, 32 hips), B (Tönnis 1, 61 hips), and C (Tönnis 2, 24 hips). The clinical score Dexeus combined score (DCS) was used preoperatively, 3 months, 6 months, and every year after operation. At 3-month follow-up, impingement test results improved significantly in 30 hips of group A (94%; p<0.001) and in 58 of group B (95%; p<0.001), whereas in group C, improvement was observed in only 14 cases (58%; p>0.05). No statistical difference was observed at 3-year visit in all groups. Merle d'Aubigné-Postel and WOMAC scores improved significantly in group A (p<0.001) and B (p<0.001) after 1 year and remained unchanged at subsequent yearly follow-ups. For group C, clinical outcomes scores did not show any significant improvement overall (p>0.05). We concluded that anterior mini-invasive technique is an effective method to treat femoroacetabular impingement, and results are highly influenced by preoperative degenerative state, especially in stage Tönnis 2. Therefore, it seems to be a reasonable early surgical treatment in symptomatic patients.

No abstract

According to our experience there are several presentations of FAI and associated hip conditions, where other authors advocate surgical dislocation, which can be conducted through a mini-open approach when increased surgical skills are reached. Moreover, this technique was found to be useful as an additional tool to consider, even for surgeons involved in the arthroscopic learning curve.