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Table 1 Clinical and imaging findings between fit-and-fill stem and tapered wedge stem groups in Dorr type C femurs

From: Tapered wedge stems decrease early postoperative subsidence following cementless total hip arthroplasty in Dorr type C femurs compared to fit-and-fill stems

 

Fit-and-fill stem group (N = 55)

Tapered wedge stem group (N = 49)

P values

Sex (male:female)

5:50

11:38

0.1003

Age (years)

67.9 ± 10.5

65.3 ± 13.1

0.2605

BMI (kg/m2)

24.0 ± 4.0

24.1 ± 4.4

0.3426

Diagnosis

  

0.4950

 OA

49

46

 

 Other (ONFH or RA)

6

3

 

HHS

 Preoperative

53.5 ± 19.6

59.1 ± 17.6

0.1320

 Postoperative (6W)

84.2 ± 8.9

85.1 ± 9.2

0.6191

Subsidence (mm)

Duration from

 0–1W

0.24 ± 0.36

0.23 ± 0.41

0.4862

 1–6W

0.38 ± 0.68

0.16 ± 0.32

0.0423*

 0–6W

0.65 ± 0.87

0.24 ± 0.38

0.0438*

  > 3 mm subsidence

10 (18.2%)

1 (2.0%)

0.0091*

  1. Continuous variables are represented as mean ± standard deviation
  2. N number, BMI body mass index, OA osteoarthritis, ONFH osteonecrosis of the femoral head, RA rheumatoid arthritis, HHS Harris hip score, 0W immediate after surgery, 1W One week after the surgery, 6W Six weeks after surgery
  3. *P < 0.05 indicates significance
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X