Clinical and Radiological Evaluation of Modified DARthroplasty Using Rib Allograft Impregnated with the Mesenchymal Cells & PRP in Dogs (original) (raw)
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Indian Journal of Animal Research, Volume 58 Issue 8: 1283-1293 (August 2024)
Background: The current study was undertaken to evaluate the clinical efficacy of cemented prosthetics for total hip replacement for management of hip dysplasia in dogs. Total hip arthroplasty will eliminate pain and, restore function of hip joint. Methods: The dogs with clinical signs of coxofemoral joint affections were diagnosed using standard hip extended ventrodorsal radiographs of pelvis. Those dogs which are not responded to the medical management, with severe degenerative changes and osteoarthritis were selected for surgical management for total hip replacement. The femoral stems used in this study were small (4) and Medium (2). The size of the acetabular cup used ranges from 20 to 22 mm outer diameter. The bone cement used was polymethyl methacrylate (PMMA) low viscosity type bone cement (Simplex-P). Clinical evaluation of the treated dogs on 2nd day post operatively indicated functional outcome (on the basis of WOMAC score) as excellent in four dogs and good in 2 dogs as the mean scores of parameters was 1.0±0.36, 0.83±0.65, 0.83±0.40, 1.0±0.68, 0.50±0.34, 0.66±0.33, 1.50±0.50, 1.16±0.47, 0.50±0.34, 1.50±0.42, 2.0±0.51 and over all mean of functional outcome is 11.33±4.06 out of 40 points, lower scores reflect better function than higher scores. Radiological and clinical assessment are excellent to good in four cases and poor in two cases, with mean score of 0, 0.83, 1.50±0.5,0,0,0, 1.16±0.40,0, 1.33±0.84. The mean score of radiological and clinical assessment was 4.88±1.85 out of 40 points, lesser score indicates effectiveness of the surgical procedure. The lamenessfrom grade V improved onby 45 days to grade I except one dog at grade II, by 60th day, all 5 dogs progressed to grade I and one dog to grade II. The post-operatively radiographic evaluation on day one revealed hip showing cup of the prosthesis into acetabulum. Result: Total hip replacement using cemented prosthetics for management of Hip dysplasia in dogs was found to be effective in dogs with more than 20 kg body weight and returned to normal limb function after 45th post operative day in 4 out of 6-dogs, whereas in other two dogs, there is a complication of loosening of acetabullar cup after 60 days, the complications will be addressed with uncemented implants.
Bone Grafting - Recent Advances with Special References to Cranio-Maxillofacial Surgery, 2018
The use of bone graft in orthopaedic surgeries has become essential in many situations in which there is a bone defect. This includes bone tumour procedures, fracture operations where there was a loss of bone tissue and revision arthroplasty surgeries. In this chapter, we will introduce aspects related to history of bone transplantation, the biological and mechanical aspects, as well sterilization, transmission of infectious diseases and biological safety, and concluding, the functioning of tissue banks and screening of musculoskeletal tissue donors.
Total hip replacement in a dog
Journal of Veterinary Science, 2005
An intact male German shepherd dog (4 y, body wt. 35.5 kg) was referred to the Animal Medical Center, Chonbuk National University with severe lameness, pain and gait abnormality on the right hind limb. Survey radiographs of the pelvis revealed dysplasia of the right coxofemoral joint with subluxation. The dog was surgically treated performing total hip replacement (THR) using Modular Biolox Canine Modular THR System. The dog began to bear weight and slowly returned to a normal exercise pattern 2 months after surgery. THR resulted in satisfactory clinical functions with 6 months follow up and no complications were observed. Canine modular THR could be a successful modality for the management of disabling conditions of the coxofemoral joint.
VCOT Open
Objective This study is a case description of femoral neck lengthening and dorsal acetabular rim (DAR) arthroplasty to treat severe hip luxation in a 5-month-old male Cocker Spaniel (14.3 kg) and to compare the clinical outcome with that of contralateral femoral neck excision. Study design Case report. Results Femoral head coverage improved after surgery (preoperative lateralization of the centre of the femoral head with regard to the dorsolateral acetabular rim: 10 mm; postoperative lateralization of the centre of the femoral head: –1.3 mm). The postoperative Barden's test was negative. The dog was bearing weight 2 weeks postoperatively. Radiographic signs of bone healing were present at the 6-week follow-up examination. No complications were detected. Conclusions Femoral neck lengthening and DAR augmentation were performed in a growing dog affected by severe hip luxation and DAR insufficiency.
Double pelvic osteotomy for the treatment of hip dysplasia in dogs
DOUBLE PELVIC OSTEOTOMY FOR THE TREATMENT OF CANINE HIP DYSPLASIA Introduction: Canine hip dysplasia (CHD) is the most common developmental orthopedic disease of dogs. It leads to coxofemoral joint osteoarthritis (OA) that can cause lifelong dysfunction and pain in affected individuals. Currently, there are several surgeries that can be performed in an effort to alleviate pain from CHD at various stages of the disease. Triple pelvic osteotomy (TPO) is a surgery that can be performed as early as 5 months of age and usually until 12 months of age, prior to the development of OA. Complication rates of 33-50% have been reported for TPO and have spurned interest in a newer technique, double pelvic osteotomy (DPO). The purpose of this thesis is to review the veterinary literature about CHD, surgical treatment options for CHD, and pelvic osteotomy in particular, describe an in vitro study to examine the acetabular ventroversion created by DPO compared to TPO, and a retrospective study comparing complications from TPO and DPO. Methods: Cadaveric pelves with intact sacroiliac joints were mounted in a custom jig. Computed tomographic images in the transverse plane were made of each pelvis at baseline, and after DPO at 20 o , 25 o , and 30 o , and TPO at 20 o. The pelvic angles were measured in six transverse planes. The values of each angle were compared for the three DPO techniques to the TPO via concordance correlation in order to determine which of the three DPOs results in the acetabular ventroversion angle closest to the TPO value. The retrospective study was performed by evaluating all DPO and TPO cases with complete medical records at the University of Missouri and comparing patient x demographics, surgical details, major and minor complication rates, and outcomes between the two techniques.
Clinical and Radiological Assessment of Biologic Resurfacing of Femoral Head in Dogs
Objective: To present a new and effective method which can cause cartilage tissue recovery and to reduce the side effects of other surgical procedures. Material and Methods: Twelve male and female dogs of at least one year of age were used in this study. The animals were randomly assigned to three groups of 4 animals per group. In group one, only the articular cartilage was removed. In groups two and three after removal of articular cartilage, the resurfacing was done using ovine fetal skull but in group three the hip joint was restricted using an ehmer sling. All animals were evaluated clinically and radiographically for 60 days. Results: Clinical signs in groups one and two were better than animals in group three. In group three, lameness continued even after removing the ehmer sling until the end of 60 days period. Radiographic changes were evident only in group three and due to immobilization, the articular space had decreased and partial ankylosis was evident. Clinical Significance: Considering the result of this study, it seems reasonable to recommend the application of membranous ovine fetal skull to resurface the damaged articular cartilage of hip joint.
Impaction grafting with a bone-graft substitute in a sheep model of revision hip replacement
Journal of Bone and Joint Surgery-british Volume, 2008
An experimental sheep model was used for impaction allografting of 12 hemiarthroplasty femoral components placed into two equal-sized groups. In group 1, a 50:50 mixture of ApaPore hydroxyapatite bone-graft substitute and allograft was used. In group 2, ApaPore and allograft were mixed in a 90:10 ratio. Both groups were killed at six months. Ground reaction force results demonstrated no significant differences (p > 0.05) between the two groups at 8, 16 and 24 weeks post-operatively, and all animals remained active. The mean bone turnover rates were significantly greater in group 1, at 0.00206 mm/day, compared to group 2 at 0.0013 mm/day (p < 0.05). The results for the area of new bone formation demonstrated no significant differences (p > 0.05) between the two groups. No significant differences were found between the two groups in thickness of the cement mantle (p > 0.05) and percentage ApaPore-bone contact (p > 0.05). The results of this animal study demonstrated tha...
Conservative management of hip dysplasia in a dog
2020
A 2 year old male Rottweiler dog was presented with the history of abnormal gait, intermittent lameness in its hind legs, reluctant to climb stairs, difficulty in getting up after a period of rest and exercise intolerance. The case was suspected for hip dysplasia on the basis of history and clinical signs. Radiographic examination revealed bilateral hip dysplasia. The case was clinically managed successfully by use of chondro-protective agents, non-steroidal anti-inflammatory drugs (NSAID), weight reduction and monitored exercise.