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Table 1 Stricklands grading system

From: Encircling tendon repair site with collagen sheet in flexor zone 2: retrospective study

Evaluation

Total active movement (%)

Degree of TAM

Very good

85–100

(150° +)

Good

70–84

(125°–149°)

Middle

50–60

(90°–124°)

Bad

 < 50

(< 90°)

  1. \({\text{TAM}} = 100 \times \frac{{{\text{Active}} \;{\text{Flexion}}\; {\text{of}} \;\left( {{\text{DIP}} + {\text{PIP}}} \right) - {\text{Extention}}\; {\text{Limitation}}\;{\text{ of}}\; \left( {{\text{DIP}} + {\text{PIP}}} \right)}}{175}\)
  2. TAM total active movement, DIP distal interphalangeal, PIP proximal interphalangeal