Table 3.

Outcome of bilateral simultaneous hip arthroplasty for stiff hips

References	Number of patients/hips	Mean follow-up (in months)	Complications	Critical per-operative anesthetic events	Blood loss	Mean HHS at follow-up
Bangjian et al. [23]	12/24	50.4	2 Femoral fractures 1 Femoral Nerve Neuropraxia 3 Heterotrophic ossification No dislocations	NA	NA	86.3
Wang et al. [24]	13/26	128	2 calcar fractures 1 Femur fracture 5 Heterotrophic ossification 1 Peroneal nerve Neuropraxia 3 osteolysis No dislocations	NA	NA	91.7
Ye et al. [25]	15/30	29.3	1 Femoral nerve Neuropraxia 1 Wound infection 1 Dislocation	NA	NA	83.8
Feng et al. [26]	17/34	30	1 Acetabular over reaming 2 Femoral fractures 3 Acetabular osteolysis 2 Wound infections 1 Sciatic nerve palsy 4 Heterotrophic ossifications 1 Anterior dislocation	NA	580 ml (450–1000 ml)	65.8
Current study	84/168	28.8	5 Calcar fractures 1 Wound hematoma 2 Heterotrophic ossifications No Dislocations	Per-op Hypotension-2 Per-op Desaturation-1	Mean drop in Hb—3.1 gm/dl	82.6

NA not available, HHS Harris hip score