Fig 1.
Intraoperative photograph after release of Osborne’s ligament and the aponeurosis of the flexor carpi ulnaris.
The ulnar nerve was protected with a yellow vessel loop.
Fig 2.
Intraoperative photograph and illustration image of the Z-shaped outline drawn on the flexor-pronator fascia and muscle mass.
Fig 3.
Intraoperative photograph and illustration of a proximal flap (fascial layer of the middle third of the flexor-pronator mass) and a distal flap (fascial and muscular layers of the humeral head of the flexor carpi ulnaris).
The intraoperative photograph shows a forceps holding the proximal flap. The distal flap is indicated by the star. The illustration shows forceps holding both the proximal and distal flaps.
Fig 4.
Intraoperative photograph after musculofascial lengthening by suturing.
Tension and degree of kinking of the ulnar nerve were evaluated by flexing and extending the elbow.
Table 1.
Grade and interpretation of the Semmes-Weinstein monofilament test.
Table 2.
Grade and interpretation of the static two-point discrimination test.
Table 3.
Modified Bishop scoring system.
Table 4.
Results of examinations of objective sensory-motor function.
Table 5.
Number of patients according to modified Bishop score.