A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty.

One of the contraindications to patella resurfacing in total knee arthroplasty is a thin and severely eroded 'deficient' patella. However, such patients often present with severe patellofemoral joint arthritis, patellar lateral subluxation, and patella maltracking, which can only be treated effectively with resurfacing. While various treatments have been proposed, options remain limited. Here we introduce a method of patella reconstruction using four 2.7-mm titanium cortical screws crossing each other into the inner shell of the patella. This provides a scaffold onto which bone cement and any standard polyethylene patellar component can be fixed. Postoperatively, the patient had no anterior knee pain, no patella maltracking, and no component loosening. Advantages of this technique include minimization of extensor disruption, low costs, easy accessibility, reproducibility, and improved mechanical strength.

A Modified Surgical Technique of Patellar Tendon Reconstruction in Total Knee Arthroplasty Using Achilles Tendon Allograft.

Patellar tendon disruption is one of the most dreaded complications after total knee arthroplasty (TKA) impacting joint function and implant longevity. Management of this condition remains controversial, and no one treatment has provided consistent clinical success. Here we propose a modified technique from the standard Achilles allograft procedure to reconstruct a ruptured patellar tendon after TKA. A fresh-frozen Achilles tendon allograft with attached calcaneal bone graft was used. Our technique offers the advantage of a more stable graft fixation by relying on both quadriceps tendon and transosseous patellar fixation and bone-to-bone allograft fixation to the tibial tuberosity. The patient regained full extension and discontinued walking aids postoperatively. Careful attention to graft preparation, tensioning, stable graft fixation, and postoperative rehabilitation led to encouraging results in this complex problem.

Paget-Schroetter syndrome as a result of 1st rib stress fracture due to gym activity presenting with Urschel's sign - A case report and review of literature.

BACKGROUND: Paget-Schrotter Syndrome (PSS) also known as "effort thrombosis" is a form of primary thrombosis in the subclavian vein at the costoclavicular junction is usually seen in younger patients after repeated strenuous activity of the shoulders and arms. When occurring in younger patients, PSS presents itself with predisposing factors such as unilateral dull, aching pain in the shoulder or axilla and swelling of the arm and hand. CASE PRESENTATION: We report a rare case of unusual left axillo-subclavian vein thrombosis following narrowing of thoracic outlet due to stress injury of rib fracture likely during gym activity in absence of other clear risk factors and a negative hypercoagulable workup in a 27-year-old man who was admitted as left deltoid rupture 5 days after his usual gym. Subsequently he was transferred under vascular surgery for thrombectomy. CONCLUSION: In addition to the unusual location in the left upper extremity in our case, the absence of common etiologic factors makes our case of Paget-Schroetter Syndrome a very unique one. This case report aims to discuss the common causes of PSS in order to raise a high index of suspicion in certain groups of patients. This will allow early identification and avoidance of catastrophic outcomes such as pulmonary embolism and stroke.