Abstract
PurposePost-traumatic arthritis is one of the leading causes of joint disability. This study aims at outlining outcomes of total knee arthroplasty in post-traumatic arthritis and technical difficulty and reviewing literature regarding this issuePatients and methodsWe analyzed the outcome of total knee arthroplasty following post-traumatic arthritis in 15 patients with unilateral involvement. Ten had stable arthritic knees treated with posterior stabilized (PS) prosthesis, while five with unstable arthritic knees treated as follows: three with ligamentous instability managed by constrained condylar prosthesis and two with osseous deficiency, metal augmentation used together with stemmed constrained condylar prosthesis (CCK). Average follow-up 6 years, mean age 49.8 years at time of arthroplasty. Patient outcomes were evaluated on the basis of Knee Society score.ResultsMean clinical knee society scores (CKSS) at latest follow-up improved from 43.6 ± 11.66 points to 77.3± points postoperatively while mean functional knee society score (FKSS) improved from 40. ± 6.3 to 76.6 ± 84 postoperatively. Patients with stable knees had a higher mean values, both clinical and functional KSS, while unstable knees were poorer. Complications occurred in three cases, one with wound dehiscence with prolonged drainage treated by antibiotics and daily dressings until the wound closed completely, one was complicated by infection and improved by serial debridement, and the third case had aseptic loosening which required revision surgery.ConclusionTotal knee arthroplasty for post-traumatic arthritis decreases pain and improves knee function. However; the procedure is not as simple as primary arthroplasty as it is technically demanding and requires adequate planning.
Highlights
Post-traumatic arthritis cases are considered types of osteoarthritis
Statistical analyses were performed using SPSS 20.0. This prospective case series study was conducted to evaluate the outcomes of total knee arthroplasty following post-traumatic arthritis in 15 patients (12 males)
From radiological and pathological point of view, it is similar to primary osteoarthritis and it is estimated that 12% of all symptomatic osteoarthritis (OA) of the hip, knee, and ankle are due to post-traumatic arthritis PTA with a varied prevalence of 21–44% reported in the literature [13]
Summary
Post-traumatic arthritis cases are considered types of osteoarthritis. Cartilage degeneration that occurs in post-traumatic arthritis results from sudden injury and not gradual wear and tear as in case for osteoarthritis. Knee joint arthritis can occur due to many causes [1]. Trauma is a common predisposing factor for knee OA. This trauma extends from internal derangement of knee to intra-articular fractures and fracture dislocation [5]. The injury could be from sports, motor vehicle accident, fall, or any other source of physical trauma.
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