Introduction: Synovial cyst of the tibial tunnel in connection with anterior cruciate ligament (ACL) reconstruction is a rare but particularly troublesome complication. Medical treatment is often doomed to failure, an...Introduction: Synovial cyst of the tibial tunnel in connection with anterior cruciate ligament (ACL) reconstruction is a rare but particularly troublesome complication. Medical treatment is often doomed to failure, and surgical treatment usually consists of excising the cyst and filling the tunnel with bone. The aim of this study was to evaluate the results of filling the tunnel with acrylic cement. Hypothesis: Filling the tibial bone tunnel with acrylic cement should eliminate communication between the joint cavity and the pre-tibial surface and prevent cyst recurrence. Patients and Methods: This retrospective series is composed of 13 patients, 9 men and 4 women, mean age 48.5 years (31 to 64) operated on between 2011 and 2019 for an intra- and extraosseous synovial cyst consecutive to the tibial tunnel of an ACL graft. Between 1983 and 2016, 12 of the patients had had a bone graft without bone block fixation (DI-DT or Mac Intosh) and one patient, a bone-bone transplant (KJ). The cyst was of variable size, located on the anteromedial aspect of the proximal end of the tibia, and often painful, warranting consultation. At the time of the initial operation, 9 patients had undergone meniscectomies (6 medial, 2 lateral, 1 double). In 7 knees, there were 7 cartilage lesions in the femorotibial and/or patellofemoral compartments (one stage 1 lesion, 2 stage 2 lesions, 4 stage 3 lesions, and no stage 4 lesions). Only 2 knees had neither cartilage nor meniscus lesions. After curettage of the bone tunnel /− removal of the non-resorbed or PEEK interference screw, the tunnel was filled with acrylic cement /− reinforced with a ligament staple to prevent expulsion. All patients underwent regular follow-up consultations until recovery. Results: At a maximum follow-up of 8 years, only 1 cyst recurred, representing a 7.69% failure rate. It was reoperated with another technique, which involved filling the tibial bone tunnel with bone graft taken from a half-bank head. After recovery, the cyst healed definitively. All patients were able to return to their previous activity within 15 days of surgery. Conclusion: Filling the tibial tunnel with acrylic cement reinforced /− with a ligament staple is a reliable and rapid solution for the treatment of intra- and extra-articular synovial cysts in relation to the tibial tunnel of ACL grafts.展开更多
Tarsal Tunnel Syndrome [TTS] is the most common lower limb focal neuropathy but it has a poor pick up rate in most Electrodiagnostic (EXD) Laboratories. There is no gold standard for assessing TTS. The tibial nerve ha...Tarsal Tunnel Syndrome [TTS] is the most common lower limb focal neuropathy but it has a poor pick up rate in most Electrodiagnostic (EXD) Laboratories. There is no gold standard for assessing TTS. The tibial nerve has a complex branching system with 4 main branches and 9 different patterns of division. This study evaluated potential TTS with a similar and extensive assessment of the tibial nerve. The protocol involved 2 tibial motor studies to the Adductor Hallucis Longus (AH) and Adductor Digiti Quinti (ADQ) muscles, assessing amplitudes and distal latencies;medial plantar, lateral plantar and calcaneal sensory studies assessing amplitudes and distal latencies. A needle EMG to the tibial innervated AH and ADQ muscles was also performed. This protocol evaluated 12 different parameters which significantly increased the diagnostic yield. TTS has a low pick up rate using current standard assessment methods accounting for between 0.5% and 0.6% of positive cases referred to electrodiagnostic laboratories. This study had a pick up rate of 3.3% with 40 positive cases identified out of a population of 1210 patients referred to an electrodiagnostic laboratory in a calendar year. A combination of positive findings was observed. There were on average 4.3 positive parameters. The calcaneal sensory study and the needle EMG to the distal AH and ADQ muscles were the most sensitive tests. These 3 tests are not routinely performed in most labs. Of the 40 cases of TTS over 80% had a history of either prior injury or surgery to affected lower limb. This study suggests that this 12 parameter assessment will increase diagnostic sensitivity.展开更多
目的基于后交叉韧带(posterior cruciate ligament,PCL)3D模型技术建立低位胫骨隧道并测量其解剖参数。方法选取101例健康膝关节CT影像资料,利用Mimics21.0(Materialise,比利时)软件建立PCL 3D虚拟手术模型并建立前内侧与前外侧入路的...目的基于后交叉韧带(posterior cruciate ligament,PCL)3D模型技术建立低位胫骨隧道并测量其解剖参数。方法选取101例健康膝关节CT影像资料,利用Mimics21.0(Materialise,比利时)软件建立PCL 3D虚拟手术模型并建立前内侧与前外侧入路的低位胫骨隧道,测量胫骨隧道长度(length of the PCL tibial tunnel,LTT),胫骨隧道与胫骨平台3D夹角(3D included angle between tibial medial axis extension line and tibial plateau,3D ATPT)以及隧道入口点到胫骨平台距离(perpendicular distance of the tunnel’s entry point to the tibial plateau,PTT)。利用SPSS 25.0进行统计学分析。结果前内侧与前外侧胫骨隧道参数测量,LTT分别为(45.56±4.27)mm、(43.93±4.10)mm,差异有统计学意义(P<0.05);3D ATPT分别为(48.17±6.12)°、(54.49±5.81)°,差异有统计学意义(P<0.05);PTT分别为(61.86±6.80)mm、(63.51±6.32)mm,差异有统计学意义(P<0.05)。结论测量PCL的3D模型低位胫骨隧道相关参数,可为临床PCL重建手术提供理论参考。展开更多
文摘Introduction: Synovial cyst of the tibial tunnel in connection with anterior cruciate ligament (ACL) reconstruction is a rare but particularly troublesome complication. Medical treatment is often doomed to failure, and surgical treatment usually consists of excising the cyst and filling the tunnel with bone. The aim of this study was to evaluate the results of filling the tunnel with acrylic cement. Hypothesis: Filling the tibial bone tunnel with acrylic cement should eliminate communication between the joint cavity and the pre-tibial surface and prevent cyst recurrence. Patients and Methods: This retrospective series is composed of 13 patients, 9 men and 4 women, mean age 48.5 years (31 to 64) operated on between 2011 and 2019 for an intra- and extraosseous synovial cyst consecutive to the tibial tunnel of an ACL graft. Between 1983 and 2016, 12 of the patients had had a bone graft without bone block fixation (DI-DT or Mac Intosh) and one patient, a bone-bone transplant (KJ). The cyst was of variable size, located on the anteromedial aspect of the proximal end of the tibia, and often painful, warranting consultation. At the time of the initial operation, 9 patients had undergone meniscectomies (6 medial, 2 lateral, 1 double). In 7 knees, there were 7 cartilage lesions in the femorotibial and/or patellofemoral compartments (one stage 1 lesion, 2 stage 2 lesions, 4 stage 3 lesions, and no stage 4 lesions). Only 2 knees had neither cartilage nor meniscus lesions. After curettage of the bone tunnel /− removal of the non-resorbed or PEEK interference screw, the tunnel was filled with acrylic cement /− reinforced with a ligament staple to prevent expulsion. All patients underwent regular follow-up consultations until recovery. Results: At a maximum follow-up of 8 years, only 1 cyst recurred, representing a 7.69% failure rate. It was reoperated with another technique, which involved filling the tibial bone tunnel with bone graft taken from a half-bank head. After recovery, the cyst healed definitively. All patients were able to return to their previous activity within 15 days of surgery. Conclusion: Filling the tibial tunnel with acrylic cement reinforced /− with a ligament staple is a reliable and rapid solution for the treatment of intra- and extra-articular synovial cysts in relation to the tibial tunnel of ACL grafts.
文摘Tarsal Tunnel Syndrome [TTS] is the most common lower limb focal neuropathy but it has a poor pick up rate in most Electrodiagnostic (EXD) Laboratories. There is no gold standard for assessing TTS. The tibial nerve has a complex branching system with 4 main branches and 9 different patterns of division. This study evaluated potential TTS with a similar and extensive assessment of the tibial nerve. The protocol involved 2 tibial motor studies to the Adductor Hallucis Longus (AH) and Adductor Digiti Quinti (ADQ) muscles, assessing amplitudes and distal latencies;medial plantar, lateral plantar and calcaneal sensory studies assessing amplitudes and distal latencies. A needle EMG to the tibial innervated AH and ADQ muscles was also performed. This protocol evaluated 12 different parameters which significantly increased the diagnostic yield. TTS has a low pick up rate using current standard assessment methods accounting for between 0.5% and 0.6% of positive cases referred to electrodiagnostic laboratories. This study had a pick up rate of 3.3% with 40 positive cases identified out of a population of 1210 patients referred to an electrodiagnostic laboratory in a calendar year. A combination of positive findings was observed. There were on average 4.3 positive parameters. The calcaneal sensory study and the needle EMG to the distal AH and ADQ muscles were the most sensitive tests. These 3 tests are not routinely performed in most labs. Of the 40 cases of TTS over 80% had a history of either prior injury or surgery to affected lower limb. This study suggests that this 12 parameter assessment will increase diagnostic sensitivity.
文摘目的基于后交叉韧带(posterior cruciate ligament,PCL)3D模型技术建立低位胫骨隧道并测量其解剖参数。方法选取101例健康膝关节CT影像资料,利用Mimics21.0(Materialise,比利时)软件建立PCL 3D虚拟手术模型并建立前内侧与前外侧入路的低位胫骨隧道,测量胫骨隧道长度(length of the PCL tibial tunnel,LTT),胫骨隧道与胫骨平台3D夹角(3D included angle between tibial medial axis extension line and tibial plateau,3D ATPT)以及隧道入口点到胫骨平台距离(perpendicular distance of the tunnel’s entry point to the tibial plateau,PTT)。利用SPSS 25.0进行统计学分析。结果前内侧与前外侧胫骨隧道参数测量,LTT分别为(45.56±4.27)mm、(43.93±4.10)mm,差异有统计学意义(P<0.05);3D ATPT分别为(48.17±6.12)°、(54.49±5.81)°,差异有统计学意义(P<0.05);PTT分别为(61.86±6.80)mm、(63.51±6.32)mm,差异有统计学意义(P<0.05)。结论测量PCL的3D模型低位胫骨隧道相关参数,可为临床PCL重建手术提供理论参考。
