Abstract

*MOUN GOSS Noudjoutobaye, CHIPALO Kabwe, MAHAMAT Achair Langaba, ABID Hatim,  ELIDRISSI Mohammed and ELMRINI Abdelmajid

ABSTRACT

Introduction: Our study reports a rare case of common fibular nerve palsy caused by compression of an osteochondroma of the proximal tibia, highlighting the need for different diagnostic means and the importance of early management. Methods: A 25-year-old man presented with progressive left leg dysfunction, including foot dorsiflexion deficit and step gait. Radiographs and MRI revealed a proximal tibial osteochondroma compressing the fibular nerve. Surgical management included tumour resection, neurolysis and nerve repair. Postoperative management included immobilisation and 12 months of physiotherapy. Results: Preoperative evaluation revealed severe neurological deficits and muscle atrophy. Imaging confirmed the compressive nature of the osteochondroma. Surgical decompression and nerve reconstruction were successful and histopathology confirmed the benign diagnosis. Postoperative rehabilitation resulted in partial recovery, with motor strength graded 3/5 at 12 months. Prolonged preoperative compression limited full recovery. Conclusions: Fibular nerve palsy due to osteochondroma is rare. Early diagnosis, imaging and surgical intervention combined with structured rehabilitation are crucial to optimise recovery and minimise long-term deficits.