ABSTRACT
Background: Total knee arthroplasty (TKA) is a reliable orthopedic procedure for knee osteoarthritis with long-term success rates of 90% after 15 years. Computer-assisted surgery (CAS) has been developed to improve the accuracy of the alignment and orientation of the components in TKA. Methods: A prospective study involving 103 subjects who underwent CAS-TKA was conducted over a 3-year period. Subjects were assessed for pre- and post-operative varus and valgus deformity, BMI, comorbidities, and Knee Society Score (KSS). Outcome measures of post-operative KSS, post-operative alignment, and hospital stay were examined by Spearman correlation coefficients. Categorical outcomes of complication and secondary procedures were compared by chi-squared test and odds ratio. Results: The study considered 103 TKA patients with a mean ± SD age of 63.7 ± 8.4 years (33-88 years). Unilateral knee replacement was performed on 56 patients (54.3%) and remaining 47 (45.6%) had simultaneous bilateral TKA. Forty (34.8%) patients were obese, and severe pre-operative deformity (> 15°) was observed in 47 (31.3%) patients. Mean coronal alignment of the knee joint was 91.33° (SD: 90.69° valgus-88.92° varus). The mean post-operative KSS noted in obese and non-obese subjects were 93.43 (84-98) and 94.76 (85-98) respectively. Post-operative KSS for knees with severe deformity was 94.08 (80-98), while it was 95.76 (83-98) in those with mild to moderate deformities. Conclusion: The study confirms that navigation in CAS-TKA consistently achieved coronal alignment of the knee joint within ± 3°, irrespective of the patient BMI and degree of deformity.
ABSTRACT
Background: Compartment syndrome in tibial plateau fractures presents a formidable challenge for treating orthopedic surgeons. The most common strategy is early fasciotomy and external fixation, followed by a second stage definitive fixation. We conducted a prospective study of tibial plateau fractures of Schatzker Type V and VI with impending compartment syndrome treated by single-stage double incision fasciotomy and dual internal fixation and Vacuum-Assisted Closure (VAC). Materials and Methods: The study was between May 2014 and February 2019. 21 patients with impending compartment syndrome who underwent single-stage double incision fasciotomy and Open Reduction and Internal Fixation (ORIF) with dual plate were included in the study. The functional and radiological outcome was measured using the modified Rasmussen functional and radiological scoring and The Western Ontario and McMaster Universities Arthritis Index (WOMAC). Results: The mean age of patients was 38.7 years (Standard deviation of ± 9.48). The mean follow-up period was 27 months (Standard deviation of ± 6.51). The mean functional and radiological modified Rasmussen score was 27.28 (range 21 to 29) & 8 (range 7 to 10), respectively. 4 patients had excellent outcomes, and 17 patients had good results. The mean WOMAC score was 8.04 (Standard deviation of ± 5.35). Five patients had a score of 0, 14 patients had a score of 1-10 and 2 had a score of 11-20. Conclusions: The early double incision fasciotomy and definitive internal fixation with dual plate and VAC as single-stage surgery in patients with impending compartment syndrome help to obtain excellent to good functional outcomes with reduced complications.
ABSTRACT
Although numerous scoring systems are designed for lower limb open injuries, most of them are based on orthopaedic and vascular injuries and can define only an amputation score. These scoring system lack specificity and sensitivity in predicting the salvage and outcome. Ganga Hospital Scoring system was found to have good specificity in predicting the outcome in Gustilo type-IIIA and type-IIIB injuries. We have validated in our study the Ganga Hospital Scoring system which grades the open injuries based on severity of injury to covering structures, functional and the skeletal units. The score was validated in 40 open injuries of tibia, 11 type-IIIA and 29 type-IIIB. Predictability of salvage and outcome was measured based on this scoring system. Results of our study correlated well with outcome of Ganga hospital study. 38 of 40 limbs with score below 14 and 1 with score above 14 were salvaged. The sensitivity and specificity for the threshold score of 14 was 100% and 95% respectively. Requirement of flaps, number of surgical procedures, time to bony union and infection rates in different groups were similar to original study. The Ganga scoring system was found to have good specificity and sensitivity and reliable in prognosticating the outcome in open injuries of the tibia.
