الفهرس 
Correction of multiplanar deformities using monolateral fixator
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Abstract
Background: Complex pediatric lower limbs deformities represent a challenging situation to manage; starting from different etiologies, preoperative planning & surgical corrections with possible complications and relapses. We hypothesized that simple monolateral fixator can correct lower limb deformities without limb length discrepancy. Aim: To evaluate the use of monolateral fixator in correction of multiplanar deformities regarding radiological correction, time to union, possible complications. Methods: An interventional clinical trial was done in Abu Elreesh children hospitals on 25 patients with 39 limbs that were operated on. Patients were divided into 4 main groups representing pattern of deformity presentation/convenience. group I (Genu varum with internal rotation), group II (Genu valgum with external rotation), group III (Neglected hemiepiphysiodesis) & group IV (Other combinations). The outcomes were evaluated using long lower limbs standing radiographs preoperatively and at the final assessment. The variables of interest were MAD, mLDFA, MPTA, LDTA, SMAA, PDFA, PPTA, tibial torsion& femoral version. Results: The median age of the studied group was 13 years, males and females were almost the same 12(40%), 13(52%) respectively. We operated upon 41 limbs involving 69 segments. Superficial pin tract infection affected (23) 56% of the limbs. The median pre-op MAD was 6.3cm and post-op 0.4cm. Pre-op SMAA median was -10{u00BA} and post-op 0{u00BA}, and the median of the tibial torsion degree changed from pre-op 40{u00BA} to post-op 18{u00BA}. Conclusion: The simple monolateral fixator can be an effective system for correction of multiplanar lower limb deformities without limb length discrepancy