Author(s): Dr. Neelanagowda VP Patil, Dr. Arun GR, Dr. Deepak MK and Dr. Jyothishlal MK

Abstract: Aims: To prospectively study the functional outcome of extra articular and intra articular distal femur fractures treated with minimally invasive percutaneous plate osteosynthesis using modified Rasmussen criteria and correlation with radiological outcome described by Handolin et al.Materials and Methods: Total 25 patients with distal femur fractures [A1 A2 A3 B1 B2 B3] were treated in our institution. They were operated with minimally invasive percutaneous plate osteosynthesis [mippo] lcp between december 2019 to june 2021 and examined according to protocol clinically and radiologically. Followed up regularly by clinical examination, rasmussens clinical scoring and xrays taken immediately after operation, at 6weeks, 12 weeks, and 24 weeks after surgery and ct scan in 3rd to 5th postoperative day or at immediate follow up.Results: Total 25 patients were evaluated postoperatively thoroughly for functional and radiological outcome using modified Rasmussen’s criteria and criteria described by Handolin et al. which showed excellent and good results of functional outcome in 65% (16) and 35% (9) patients respectively and no poor results. Coronal and sagittal alignments were satisfactory in 92% and 96% of subjects. Rotational alignment was satisfactory in 56% of patients. According to Handolin et al. classification excellent results in 16% (4) of patients good in 40% (10) fair in 32% (8) poor in 12%(3) of subjects. Leg length discrepancy was satisfactory in 92% (23) of patients. Conclusion: Minimally invasive percutaneous plate osteosynthesis (MIPPO) showed an excellent option in treating the distal femoral fractures due to minimal soft tissue distruption. But regardless of the fracture pattern, rotational malalignment may occur at an extremely high rate after mippo for distal femoral fractures whereas satisfactory alignment is obtained for coronal and sagittal alignments and limb length.

DOI: https://doi.org/10.33545/orthor.2022.v6.i1a.343