Preventing Lateral Skin Numbness after Medial Unicompartmental Knee Arthroplasty.
10.4055/cios.2010.2.4.232
- Author:
Moo Ho SONG
1
;
Bu Hwan KIM
;
Seong Jun AHN
;
Seong Ho YOO
;
Seung Ho SHIN
Author Information
1. Department of Orthopaedic Surgery, Daedong General Hospital, Busan, Korea. mhsong21@hanmail.net
- Publication Type:Original Article
- Keywords:
Lateral skin numbness;
Infrapatellar branch of saphenous nerve
- MeSH:
Aged;
Aged, 80 and over;
Arthroplasty, Replacement, Knee/adverse effects/*methods;
Female;
Humans;
Hypesthesia/etiology/*prevention & control;
*Knee Prosthesis;
Male;
Middle Aged;
Osteoarthritis, Knee/surgery;
Skin/*innervation
- From:Clinics in Orthopedic Surgery
2010;2(4):232-236
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND: The authors report the results of preserving the infrapatellar branch of the saphenous nerve during unicompartmental knee arthroplasty to prevent lateral skin numbness. METHODS: All 100 cases had medial compartmental osteoarthritis and a minimally invasive technique had been used. The mean follow-up duration was two years and eight months (range, 24 to 42 months). RESULTS: The classification according to the location of this nerve was observed as either Mochida Type I with 76 cases (76%), Type II with 16 cases (16%), and unclassified type with 8 cases (8%). In Type I, the nerve was saved in 62 cases (82%), but could not be preserved in Type II because of the surgical procedure. These results showed that the mean distance from the joint line to the nerve of Type I was 9.13 mm (range, 4 to 15 mm) and the nerve passed inferiorly. CONCLUSIONS: This study showed the location of this nerve can be predicted ahead of the procedure, which will help preserve it during the surgery.
