Percutaneous Partial Tenotomy of ITB for Secondary Genu Valgum Developing After Total Hip Arthroplasty ın Patients wıth Crowe Type-Iv Dysplasia.

Background: The aim of this study was to make a prospective evaluation of the effect on the clinical results of percutaneous iliotibial band partial tenotomy (PITP) applied to cases of genu valgum which developed following total hip prosthesis for Crowe Type IV dysplastic hip.

Methods: The study consists of 33 patients with unilateral crowe type IV dysplastic hip osteoarthritis who developed iatrogenic ipsilateral genu valgum after total hip arthroplasty. The patients were randomly separated into 2 groups of Group 1 ( = 16) where percutaneous iliotibial band tricut partial tenotomy was applied (PITP) and Group 2 ( = 17) where no treatment was applied. Pre and postoperative measurements were taken of the Harris Hip Score (HHS), the Lysholm-Gilquist Knee Score (LGS), Visual Analog Score (VAS), ipsilateral knee Q angle, and the spina ilica anterior superior medial malleolus distance (SIAS-MM).

Results: In both Group 1 and Group 2, a statistically significant increase was seen in the values of SIAS-MM ( < 0.001), Q angle ( < 0.001) and HSS ( < 0.001) from preoperative to postoperative. A statistically significant decrease was determined in LGS ( < 0.001,  < 0.003). In Group 1, a statistically significant decrease in the Q angle was determined at the final follow-up after PITP compared to the early postoperative period ( < 0.001). The HSS values for Group 1 were statistically significantly high in the early postoperative period and at the final follow-up ( < 0.001).

Conclusion: PITP application improves knee and hip clinical scores in the early postoperative period and hip clinical scores in the mid-term follow-up.