The use of a cementless modular stem in the treatment of XXXX in conjunction with ipsilateral coxarthrosis.

@entity1 @entity174 @entity170 @entity3330 @entity130
Subtrochanteric @entity174 of the femur below an arthritic hip are uncommon and challenging to orthopedic surgeons. Most of these @entity174 occur in elderly @entity1 with advanced @entity170 . The treatment choices consist of treatment of the @entity174 and the above hip joint versus treatment of the @entity174 alone. This study evaluates the clinical and radiological outcomes of arthroplasties performed to treat both conditions in a single surgery with the use of a cementless modular revision stem. Twelve @entity3330 of 12 @entity1 (9 @entity1 , 3 @entity1 ) with a mean age of 76.4 years (range, 62-88 years) were treated with cementless modular revision stems. Total hip arthroplasty was performed with cementless femoral and acetabular component fixation. All hips received the same femoral and acetabular implants. All @entity1 had comorbidities and the average American Society of Anesthesiologists score was 2.3 (range, 1-3). Ten of the 12 hips (83%) required an assistance device for ambulation before the @entity130 . There were 2 Dorr Type A (17%), 3 Dorr type B (25%), and 7 Dorr type C (58%) femora. The mean postoperative Harris Hip Score was 83 (range, 72-92) with a mean follow-up of 4.3 years (range, 2-7 years). At final follow-up, 9 hips (75%) were ambulatory without support (P=.016). Ten hips (83%) were able to both ambulate and walk up and down stairs. Two hips (17%) were able to ambulate but could not climb and descend stairs. Union was achieved in all femora at an average of 22.3 weeks (range, 16-32 weeks). Radiographic findings demonstrated stable ingrowth of the femoral prosthesis with no evidence of subsidence in 11 hips (92%). The average Engh score for all femora was 20.2 (range, 10-26). There was no relationship between the bone morphology (Dorr type) of the femoral medullary canal and the bone ingrowth scores of Engh (P=.639).
