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Table 3 Fibril diameter as seen in the TEM

From: Histological and ultrastructural degenerative findings in the gluteus medius tendon after hip arthroplasty

GMED tendon fibrils

Revision DL

Revision posterior

Primary THA (OA)

Primary THA (fracture)

ANOVA

N

2201

2425

2900

2500

 

Diameter in nm

p < 0.0001

 Mean (SD)

56.5 (15.3)

58.7 (21.2)

68.3 (37.3)

67.6 (30.9)

 

 Median

60.0

50.0

60.0

57.0

 
  1. Revision DL: revision arthroplasty via the direct lateral approach; Revision posterior: revision arthroplasty via the posterior approach; Primary THA (OA): primary total hip arthroplasty due to osteoarthritis; Primary THA (fracture): primary total hip arthroplasty due to femoral neck fracture. N, number of fibrils in areas showing transversely sectioned collagen fibrils; significant p value in bold. Pair-wise comparison showed statistical significance of p < 0.001 except for primary THA vs fracture (p = 0.43)