Vol.12, No 3, 2005 pp. 179 - 184
UC 616.72
INFLUENCE OF REPETITIVE MICRO-TRAUMA ON PATHOGENESIS
AND PROGRESSION OF HAND AND NECK OSTEOARTHROSIS
Andjelka Hedrih1, Aleksandra Stanković2, Bojana Stamenković2
1Technology-Metallurgy Faculty, Belgrade
2Institute for Prevention and Treatment of Rheumatic and Cardiovascular Diseases, Niška Banja,
 Serbia and Montenegro

Summary. Repetitive micro-trauma is one of the causes of osteoarthrosis. The aim of our study was to determine if repetitive micro-trauma caused by prolonged use of a keyboard or a mechanical typewriter is associated with the increase in degenerative changes in the hand and cervical joints. We studied a sample of people of over 40 years of age, who have been working on a keyboard or a mechanical typewriter for at least 10 years. A clinical and radiological evaluation of the degree of osteoarthrosis of the hands and the neck spine was done according to the Kellgren-Lawrence grade; CRP and ESR were used as laboratory markers of secondary inflammation in osteoarthrosis. We also used some demographic and epidemiological data. We did a prospective study with 30 examinees, average age 47 years (SD 4.77), average effective working hours 8.88 (SD 6.59). The average usage of the keyboard was 18.71 years (SD 6.59). We found that the clinical degree of osteoarthrosis on distal interfalangeal joints (DIP) is in correlation with age (r = 0.516, p = 0.05) and years of working (r = 0.459, p = 0.05). The radiological grade of osteoarthrosis on DIP and proximal interfalangeal joints (PIP) are associated (r = 0.835, p = 0.01). We found no significant association with effective day working hours and the clinical and radiological grade of osteoarthrosis of DIP and PIP hand joints. The radiologically determined cervical osteoarthrosis grade is significantly higher than that of DIP (p = 0.004) and PIP (p = 0.035) joints of the hands.
Key words: Osteoosteoarthrosis, hands, keyboard, cervical spine

UTICAJ PONOVLJENE MIKROTREUME NA NASTANAK I PROGRESIJU OSTEOARTROZE ŠAKA I VRATNE KIČME
Kratak sadržaj: Jedan od uzročnih faktora artroze je ponovljena mikrotrauma. Cilj našeg rada bio je da se utvrdi povezanost ponovljene mikrotraume kod višečasovne, višegodišnje upotrebe tastature računara i/ili mehaničke mašine za kucanje sa stepenom artroze na proksimalnim interfalangealnim (PIP) i distalnim interfalangealnim (DIP) zglobovima šaka i cervikalknoj kičmi.
Kriterijumi za izbor ispitanika bili su uzrast preko 40 godina i upotrebe tastature mašine za kucanje i/ili računara najmanje 10 god. Vršena je klinička i radiološka procena stadijuma artroze šaka po Kelgren-u i Lawrenc-u, kao i klinička i radiološka zahvaćenost vratne kičme. CRP i SE su korišćeni kao labaratoriski markeri sekundarne inflamacije u artrozi. Ostali demografski i epidemiološki podaci dobijeni su putem upitnika posebno sačinjenim za ovu priliku.
Ispitano je 30 ispitanika prosečne starosti 47 (SD 4,77) god, prosečnog broja dnevnih efektivnih radnih sati 8. 88 (SD 6,59). Ispitanici u proseku koriste tastaturu 18.71 (SD 6,59) god.
Ispitivanjem smo ustanovili da klinički stadijum na DIP zglobovima korelira sa godinama starosti (r=0,516, p=0,05) i dužinom radnog staža (r = 0,459, p = 0,5). Postoji korelacija između radiološkog stadijuma na PIP i DIP zglobovima šaka (r = 0,835, p = 0,01). Ne postoji statistički značajna korelacija između prosečnih dnevnih efektivnih radnih sati i kliničkog i radiološkog stepena artroze na PIP i DIP zglobovima šaka. Radiolološki stadijum artroze vratne kičme je statistički značajno veći od radiološkog stepena artroze na DIP (p = 0,004) i PIP (p = 0,035) zglobovima šaka.
Naša ispitivanja pokazala su veći radiološki stepen artroze vratne kičme u odnosu na stepena artroze šaka kod ispitaika koji više godina koriste tastaturu.
Ključne reči: Artroza, šake, tastatura, vratna kičma