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Table 4 Demographic characteristics from all three major implant classes

From: Histopathological characterization of corrosion product associated adverse local tissue reaction in hip implants: a study of 285 cases

 

Non-MoM DMNTHA (N = 120 patients)

MoM HRA (N = 44 patients)

MoM LHTHA (N = 113 patients)

Age (years)

66 (47–87)*

56 (43–75)*

60 (31–84)*

Sex (% female)

64 %

58 %

54 %

Body Mass Index

28 (17–43)^

25 (18–36)^

26 (19–59)

Implantation Time (months)

28 (6–65)°

48 (5–120)°

60 (23–132)°

Symptom Duration (months)

9 (0–60)

12 (0–63)

18 (0–60)

Serum Cobalt

7 (0–169)#

16 (1–115)#

13 (4–16)#

Serum Chromium

1 (0–64)§

14 (1–160)§

60 (23–132)§

Head Size

28 (22–52)¶

46 (38–52)¶

46 (36–64)¶

Cup Size

52 (38–64)

52 (46–58)

52 (48–64)

  1. All values are given as median (range)
  2. *p < 0.005 for the MoM HRA group compared to the other two groups
  3. ^p < 0.05 for the MoM HRA group compared to the non-MoM DMNTHA group (p = 0.005)
  4. °p < 0.05 for the non-MoM-DMN THA group compared to the MoM HRA group (p < 0.001) and the MoM LHTHA group (p < 0.001)
  5. # p < 0.05 for the non-MoM DMNTHA group compared to the MoM HRA group (p = 0.042)
  6. § p < 0.05 for the MoM HRA and the MoM LHTHA groups compared to the non-MoM DMNTHA group (p < 0.001) and the MoM HRA group compared to the MoM LHTHA group (p = 0.026)
  7. ¶ p < 0.05 for the MoM HRA (p < 0.001) and the MoM LHTHA (p < 0.001) groups compared to the non-MoM DMNTHA group
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BMC Clinical Pathology

ISSN: 1472-6890

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