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Table 7 Details of etiology, preoperative and postoperative ROM, type of prosthesis, and complications in the study

From: Results of total knee arthroplasty for painless, stiff knees

Patients Sex Age Side Etiology Preoperative ROM (range) Stiffness Prosthesis Postoperative ROM (range) ROM gain Complications
1 F 39 L OA 0 (0) Complete ankylosis PS 110 (0–110) 110  
2 M 66 R OA 0 (0) Complete ankylosis PS 130 (0–130) 130  
3 M 45 L TB 0 (0) Arthrodesed VVC 55 (10–65) 55 Pyogenic infection, extension lag
4 F 39 R Trauma 0 (0) Complete ankylosis VVC 70 (0–70) 70  
5 F 58 R TB 0 (45–45) Complete ankylosis PS 110 (0–115) 110  
6 F 62 R Trauma 0 (10–10) Arthrodesed VVC 65 (15–80) 65 Aseptic loosening with polyethylene wear, distal femoral fracture extension lag
7 F 44 L RA 0 (40–40) Complete ankylosis VVC 85 (0–85) 85  
8 M 32 L TB 0 (15–15) Arthrodesed VVC 130 (0–130) 130 Polyethylene dislocation
9 M 66 L Trauma 0 (50–50) Complete ankylosis VVC 15 (15–30) 15 Pyogenic infection, extension lag
10 F 63 R RA 0 (0) Complete ankylosis VVC 70 (15–85) 70 Extension lag
11 F 70 R OA 0 (0) Arthrodesed VVC 125 (0–125) 125  
12 F 83 L OA 0 (0) Arthrodesed VVC 40 (0–40) 40  
13 F 66 L RA 0 (5–5) Arthrodesed VVC 60 (50–110) 60 Patellar fracture with severe extension lag
14 M 74 R TB 0 (10–10) Complete ankylosis VVC 70 (0–70) 70  
15 F 61 L Pyogenic infection 0 (0) Arthrodesed VVC 30 (0–30) 30  
  1. F female, M male, OA osteoarthritis, TB tuberculosis, RA rheumatoid arthritis, ROM range of motion, PS posterior-stabilized, VVC valgus-varus constrained