Stress Fracture of the Ulnar Styloid Process in Kendo Player — A Case Report

Abstract

We present a case report of a 15-year-old kendo (Japanese fencing) player who suffered a stress fracture of the ulnar styloid process. Exercise of the kendo requires the athlete to flex his non-dominant wrist repeatedly in an ulnar direction, and causes the disorder. Excision of the osteochondral fragment relieved the symptoms. This lesion is likely to occur with other sports or activities which demand similar motion of the wrists.

Elderly Kendo (Japanese Fencing) Player With Kienböck's Disease in One Wrist and Preiser's Disease in the Other Wrist: A Case Report

“…By swinging the sword, repetitive stress produced by ulnar and radial deviations of the wrist is considered to be applied to the lunate and scaphoid. 6 Additionally, during the course of a match, the wrist joints frequently receive direct blows from an adversary sword. Kendo tends to deliver these indirect and direct repeated impacts to both wrist joints.…”

Arthroscopic Treatment of an Osteochondral Lesion in a Child With Chronic Wrist Pain: Case Report

“…Most of the OCL literature focuses on the commonly affected knee, elbow, and ankle joints. 4 -7 One case report described OCL of the ulnar styloid, 8 and a few retrospective studies demonstrated OCL in association with scapholunate ligament tears. 2,3 An OCL is primarily traumatic in origin, although infectious, metabolic, and genetic causes have been proposed.…”