Purpose To identify the structural integrity of the healing site after medial open wedge high tibial osteotomy (MOWHTO) in patients with a posterior root tear of the medial meniscus (PRTMM) and chondral lesion by second-look arthroscopy and to determine the clinical and radiological findings. Materials and Methods From August 2010 to June 2016, 52 consecutive patients underwent MOWHTO and art...

BACKGROUND Standard knee arthroscopy portals are frequently used to address retropatellar chondral pathology. Alternative portals may offer a safe and simple substitute, particularly when reaching the base of deep lesions is required. PURPOSE To describe and assess the safety of accessory retropatellar portals. STUDY DESIGN Descriptive laboratory study. METHODS An anatomic study was perfo...

Objective: Autologous osteochondral cartilage repair is a valuable reconstruction option for cartilage defects, but the accuracy to harvest and deliver osteochondral grafts remains problematic. We investigated whether image-guided methods (optically guided and template guided) can improve the outcome of these procedures. Design: Fifteen sheep were operated to create traumatic chondral injuries ...

PURPOSE To determine the value of the 2D multiple-echo data image combination (MEDIC) sequence relative to the short-tau inversion recovery (STIR) sequence regarding the depiction of chondral lesions in the patellofemoral joint. MATERIALS AND METHODS During a period of 6 month patients with acute pain at the anterior aspect of the knee, joint effusion and suspected chondral lesion defect in t...

BACKGROUND Previous studies have reported varying return-to-sport protocols after knee cartilage restoration procedures. PURPOSE To (1) evaluate the time for return to sport in athletes with an isolated chondral injury who underwent an accelerated return-to-sport protocol after osteochondral autograft plug transfer (OAT) and (2) evaluate clinical outcomes to assess for any consequences from t...

Marrow stimulation is frequently employed to treat focal chondral defects of the knee. However, marrow stimulation typically results in fibrocartilage repair tissue rather than healthy hyaline cartilage, which, over time, predisposes the repair to failure. Recently, a cryopreserved viable chondral allograft was developed to augment marrow stimulation. The chondral allograft is comprised of nati...

BACKGROUND At the time of anterior cruciate ligament (ACL) reconstruction, there are usually concurrent meniscal and articular cartilage injuries. It is unclear if there is a significant difference between intra-articular injuries at the time of a primary ACL reconstruction compared with revision ACL reconstruction. PURPOSE To compare the meniscal and articular cartilage injuries found at the...

Platelet-rich plasma (PRP) is emerging as a biological therapy for the treatment of cartilage injuries and for intra-articular application to address knee pain. Basic science studies indicate that PRP stimulates cell proliferation and the production of cartilage matrix by chondrocytes and bone marrow–derived mesenchymal stromal cells and increases the production of hyaluronic acid by synoviocyt...

BACKGROUND The clinical and radiologic features of radial tears of the medial meniscus posterior horn were compared with those of horizontal tears. METHODS From January 2007 to December 2008, 387 consecutive cases of medial meniscal tears were treated arthroscopically. Among these, 91 were radial tears in the medial meniscus posterior horn, and 95 were horizontal tears in the posterior segmen...

OBJECTIVE Autologous osteochondral cartilage repair is a valuable reconstruction option for cartilage defects, but the accuracy to harvest and deliver osteochondral grafts remains problematic. We investigated whether image-guided methods (optically guided and template guided) can improve the outcome of these procedures. DESIGN Fifteen sheep were operated to create traumatic chondral injuries ...