ABSTRACT
Objective It is a great challenge to perform hip revision surgery especially with severe proximal femoral bone de -fect.This study aims to discuss the short-medium clinical outcomes of using nonmodular full-coated tapered stem in femoral revision with Paprosky Ⅲ bone defect. Methods From May 2011 to October 2015, 58 patients(58 hips)diagnosed as ostiolysis/aseptic loosening with severe femoral bone defect(Paprosky Ⅲ)were treated with hip revision surgery.The cases of septic loosening and tumor were excluded.Harris scoring system and pain visual analogue scale(VAS)were used pre-and post-operatively to evaluate the function of hip joints and the pain level.Radiograph was used to evaluate loosening,subsidence and bone healing of the prosthesis. Results All patients were followed-up with 24-67 months,the mean follow up time was 49.3±12.7 months.None of the patients showed infec-tion or surrounding bone fracture.Dislocation happened in one case after surgery and was treated with manipulative reduction without re -currence.One case had progressive subsidence which led to aseptic loosening and was treated with re-revision.By the end of last follow-up,Haris Score was improved from preoperative 41.6±6.9 points to 83.1±5.7 points, VAS score decreased from preoperative 6.7 ±1.6 points to 2.5 ±1.2 points,(P<0.05). Conclusion Nonmodular full-coated tapered stem can obtain good clinical effect in femoral revision with severe proximal bone defect.