Total hip replacement improves significantly the patient's health-related quality of life at 6months after surgery, what is influenced by sense of coherence, neuroticism and anxiety as a trait. Above mentioned factors should be taken into account when rehabilitation and social readaptation processes are planned.

Objective. The study investigated health-related quality of life in relation to mental status (anxiety and depression) and demographic factors in patients before and after total hip replacement due to osteoarthrosis. Methods. The SF-36, HADS, socio-demographic data questionnaire was delivered to a group of 184 subjects (108 females, 76 males) at the mean age at the time of surgery of 59 years. Questionnaires were delivered to the subjects 2 weeks before the surgery and 6 months after the operation (by mail). Results. Patients after hip replacement showed significant improvement in health-related quality of life in most domains of SF-36 score and summary scale of PCS (Physical Component Summary Scale) and MCS (Mental Component Summary Scale). They also showed improvement in mental status. Elderly patients were more likely to show worse score in MCS and PCS before and after surgery. BMI (body mass index) was correlated only with preoperative PCS. Mental status was associated with postoperative PCS and MCS. Patients who were satisfied with the results of the surgery showed higher PCS and MCS score. Conclusion. Hip replacement surgery brings significant improvement to the quality of life. Age and mental status of those patients influence markedly their postoperative performance.

The aim of the paper was to compare physicochemical features of hip joint cups coated with hydroxyapatite in the initial state and after period of 36 months of implantation. The cups we produced from stainless steel Cr-Ni-Mo with increased content of azote dedicated to implants which chemical composition is compatible with recommended ISO 5832-9 standards. On the basis of obtained results it can be stated that hydroxyapatite resorption did not affect equally the entire surface of the cup. It was also stated that tested biomaterial of the cup was well wetted (hydrophilic). For all the tested samples prepared from cups in the initial state and cups after the implantation the presence of transpassivation potential Etr was stated, which proves not only good corrosion resistance but also biocompatibility of analyzed cups.

STRESZCZENIEWstęp. Ce lem pra cy by ła oce na alo pla sty ki sta wu bio dro we go z wy ko rzy sta niem bez ce men to wej pa new ki Avan ta ge u ko biet z do dat ko wy mi czyn ni ka mi ry zy ka po ope ra cyj nej nie sta bil no ści.Ma te riał i me to dy. W la tach 2004-2010 im plan to wa no 280 bez ce men to wych pa ne wek sys te mu Avan ta ge i Avan ta ge Re lo ad u 260 ko biet w wie ku od 29 do 79 (śred nia 60) 9 lat. U 217 ko biet wy stę po wał przy naj mniej 1 do dat ko wy czyn nik ry zy ka zwich nię cia en do pro te zy. Prze ży wal ność pa new ki oce nia no okre śla jąc ja ko punkt koń co wy ko niecz ność jej wy miany. W ana li zach sta ty stycz nych wy ko rzy sta no do kład ny test Fi she ra ce lem oce ny ró żni cy w ko niecz no ści re wi zji mię dzy pa new ką Avan ta ge a Avan ta ge Re lo ad, krzy wą Ka pla na-Me ie ra w sza co wa niu cza su spraw ne go dzia ła nia en do pro te zy. Prze pro wa dzo no rów nież ba da nia war stwy po wierzch nio wej 2 nie uży tych oraz 4 usu nię tych pa ne wek.Wy ni ki. Koń co we mu ba da niu pod da no 239 cho rych (259 alo pla styk). Okres ob ser wa cji wy no sił od 2, 7 do 9, 6 lat, śred nio 7, 0 lat. U żad nej cho rej nie ob ser wo wa no po ope ra cyj nej nie sta bil no ści en do pro te zy sta wu bio dro we go. Asep tyczne mu ob lu zo wa niu ule gło 19 pa ne wek u 18 ko biet (7, 3%). We wnątrzpro te zo we zwich nię cie wy stą pi ło czte ro krot nie, w dwóch przy pad kach łącz nie z ob lu zo wa niem pa new ki. Re wi zja czę ściej wy ma ga na by ła w przy pad ku pa new ki Avan tage (9, 5%; 17 spo śród 179) w po rów na niu z pa new ką Avan ta ge Re lo ad (2, 5%; 2 spo śród 80), jed nak ob ser wo wa ne ró żni -ce nie osią gnę ły po zio mu sta ty stycz nej zna mien no ści. Praw do po do bień stwo prze ży cia pa new ki Avan ta ge wy no si ło po 5 la tach: 0, 94 oraz po 8 la tach: 0, 86.Wnio ski. 1. Za sto so wa nie pa new ki Avan ta ge zmniej sza ry zy ko po ope ra cyj nej nie sta bil no ści sta wu. 2. Pa cjen ci, u któ rych za sto so wa no bez ce men to wą pa new kę Avan ta ge po win ni być ści śle ob ser wo wa ni pod ką tem jej asep tycz ne go ob lu zo wa nia.Słowa kluczowe: staw biodrowy, endoprotezoplastyka, panewka z podwójnym ruchem, zwichnięcie, czynniki ryzyka, powikłania SUMMARY Background. The aim of the study was to assess total hip arthroplasty procedures using the cementless Avantage cup in women with additional risk factors for postoperative hip instability.Material and methods. A total of 280 cementless Avantage and Avantage Reload cups were implanted in 260 women aged between 29 and 79 years (60.9 years on average) in the years 2004-2010. In 217 women, there was at least one additional risk factor for prosthesis dislocation. The survival of the cup was assessed by using the necessity of cup replacement as an endpoint of the study. The statistical analyses used the Fisher test to assess the difference in the necessity of revision surgery between the Avantage and Avantage Reload cups, and the Kaplan Meier method was used to evaluate the effective functioning time of...

Subtrochanteric osteotomy of the femur reduces the risk of postoperative complications associated with excessive limb lengthening and facilitates access to the acetabulum. Total hip arthroplasty with shortening subtrochanteric Z-type osteotomy is a safe method in the treatment of degenerative changes secondary to developmental dysplasia with high hip dislocation.