Carpal tunnel syndrome caused by space occupying lesions.
OBJECTIVE
To evaluate the diagnosis and treatment of the carpal tunnel syndrome (CTS) due to space occupying lesions (SOL).


METHODS
Eleven patients and 12 cases that underwent surgery for CTS due to SOL were studied retrospectively. We excluded SOL caused by bony lesions, such as malunion of distal radius fracture, volar lunate dislocation, etc. The average age was 51 years. There were 3 men and 8 women. Follow-up period was 12 to 40 months with an average of 18 months. The diagnosis of CTS was made clinically and electrophysiologically. In patients with swelling or tenderness on the area of wrist flexion creases, magnetic resonance imaging (MRI) and/or computed tomogram (CT) were additionally taken as well as the carpal tunnel view. We performed conventional open transverse carpal ligament release and removal of SOL.


RESULTS
The types of lesion confirmed by pathologic examination were; tuberculosis tenosynovitis in 3 cases, nonspecific tenosynovitis in 2 cases, and gout in one case. Other SOLs were tumorous condition in five cases, and abnormal palmaris longus hypertrophy in 1 case. Tumorous conditions were due to calcifying mass in 4 cases and ganglion in 1 case. Following surgery, all cases showed alleviation of symptom without recurrence or complications.


CONCLUSIONS
In cases with swelling or tenderness on the area of wrist flexion creases, it is important to obtain a carpal tunnel view, and MRI and/or CT should be supplemented in order to rule out SOLs around the carpal tunnel, if necessary.
Kang
Ho Jung
HJ
Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, Korea.
Jung
Sung Hoon
SH
Yoon
Hong Ki
HK
Hahn
Soo Bong
SB
Kim
Sung Jae
SJ
D000328:Adult; D000368:Aged; D002349:Carpal Tunnel Syndrome / Q000175:diagnosis* / Q000209:etiology* / Q000473:pathology; D005260:Female; D006073:Gout; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013717:Tenosynovitis; D014057:Tomography, X-Ray Computed; D014953:Wrist / Q000473:pathology / Q000601:surgery