Knee Reconstruction & Knee Arthroscopy Journal Scan

Editor's Pick

The Knee injury and Osteoarthritis Outcome Score reflects the severity of knee osteoarthritis better than the revised Knee Society Score in a general Japanese population.

Oishi K, Tsuda E, Yamamoto Y, Maeda S, Sasaki E, Chiba D, Takahashi I, Nakaji S, Ishibashi Y.

Knee. 2015 Sep 10. pii: S0968-0160(15)00180-5. doi: 10.1016/j.knee.2015.08.011. [Epub ahead of print]

PURPOSE:

While cemented total knee arthroplasty (TKA) is currently the gold standard for primary osteoarthritis, cementless component fixation has achieved increasingly comparable outcomes due to improvements in both implant designs and surgical technique. Long-term outcomes and survivorship with the TC-Plus cementless, titanium plasma-coated TKA system without patella resurfacing were evaluated.

METHODS:

A homogenous population of 171 consecutive patients who received 206 primary TC-Plus TKAs without patella resurfacing over a 19-year period was retrospectively reviewed. Knee Society Clinical Rating System (KSCRS) scores were obtained, and radiographic evaluation was performed after a mean follow-up of 13.2 ± 8.4 years. Survivorship analysis was made with endpoints revision for any reason and aseptic loss of biological fixation.

PURPOSE:

Publications describing tendon graft reconstruction for anterior sternoclavicular joint (SCJ) instability are rare and usually refer to small patient numbers. The aim of this study was to systematically review the literature regarding outcomes and complications following tendon graft reconstruction techniques for anterior SCJ instability.

METHODS:

An online database was systematically searched to identify studies on graft reconstruction for anterior SCJ instability. Reported outcome scores were graded as excellent, good, fair and poor to summarize the study results. All reported complications were recorded.

RESULTS:

Five articles with a total of 80 patients met the inclusion criteria. Reported outcomes were excellent in 10 %, good in 89 % and fair in 1 %.

PURPOSE:

The purpose of this study was to compare the biomechanical characteristics and patient outcomes after either isolated intraarticular ACL reconstruction or intraarticular reconstruction with lateral extra-articular tenodesis. In addition, we aimed to evaluate biomechanical parameters of the entire uninjured, contralateral knee as a baseline during the analysis.

METHODS:

Eighteen patients were evaluated at an average of 9.3 years after ACL reconstruction. Twelve patients had an intraarticular reconstruction (BTB), and six had an additional lateral extraarticular procedure (BTB/EAR). Patients were selected for the additional procedure by the operating surgeon based on clinical and radiological criteria. At the time of review, each patient was assessed using subjective patient questionnaires, manual laxity testing, and instrumented laxity testing.

BACKGROUND:

The mid-substance central defect injury has been used to investigate the primary healing capacity of the anterior cruciate ligament (ACL) in a goat model. The sagittal plane stability on this model has not been confirmed, and possible effects of fat pad excision on healing have not been evaluated. We hypothesize that excising the fat pad tissue results in poorer ligament healing as assessed histologically and decreased tensile strength of the healing ligament. We further hypothesize that the creation of a central defect does not affect sagittal plane knee stability.

METHODS:

A mid-substance central defect was created with a 4-mm arthroscopic punch in the ACLs of right knees of all the subjects through a medial mini-arthrotomy.