Table 2.

Achilles tendon morphology of patients (n = 48) at 3 months and 12 months after surgery.

	All (uninjured)	Standard (injured)		Delayed (injured)
		3 months	12 months	3 months	12 months
CSA, mm2
Distal	64 ± 2	211 ± 18	229 ± 11	171 ± 13	253 ± 12
Prox.	65 ± 1	259 ± 26	194 ± 17	212 ± 16	207 ± 15
Fat fraction (%)
Distala	—	3.1 [2.6–3.6]	6.5 ± [5.8–7.3]	3.3 ± [2.7–4.0]	5.0 ± [4.6–5.4]
Dopplerb area (mm2)
Distal	—	116 ± 11	12 ± 3	64 ± 12	15 ± 4

Note: CSA: cross-sectional area and fat fraction measured by MRI of Distal = distal part of the tendon and Prox. = proximal part of the tendon. Uninjured = mean of all uninjured sides at all time points. Injured = mean of injured sides in each group, STANDARD and DELAYED, at 3 months and 12 months.

^aGeometric mean and [lower-upper SEM]. Power Doppler area of the distal part of the tendon measured by ultrasound mean ± SEM.

^bThese data have been reported on previously [23].